Concrete surface finishes standards
concrete surface finishes standards Oct 08, 2020 · Immediately level and prepare further using a bull float. These are the original five finish textures with DPR (dirt pick-up resistant) chemistry that will remain clean longer after application. Smooth finished concrete (like a garage floor) should not be used for outdoor applications as it poses a safety risk when wet. 6: White Paint on Non-fines Concrete: Wall: 0. Stained and polished concrete have become popular over the course of the last 10 to 20 years. There is a view amongst concrete floor slab engineers and Sep 11, 2015 · In the world of concrete floor finishers, the results of their work are easily quantified through measurement criteria contained in ASTM E1155, Standard Test Method for Determining Floor Flatness (FF) and Floor Levelness (FL) Numbers, and ASTM E1486, Standard Test Method for Determining Floor Tolerances Using Waviness, Wheel Path, and Levelling Criteria. Surface preparation standards provide a basis for a service level agreement between blasters, contractors, inspectors and project owners. 2-1997 (formerly No. A cold joint in concrete. 2 Concrete Materials and Methods of Concrete Construction/Methods of Test and Standard Practices for Concrete. More detailed information can be found in the Architectural Precast Concrete Manual (3rd edition). As recognised in BS 8204-2, MCRMA Technical Paper No. A. Apr 19, 2019 · This article describes the standards and methods that can be used to determine the roughness of prepared concrete surfaces, including methods that are quantitative. Most spalls in this category will be defined as minor and repaired per Section 3. 16. Reunion Internationale des Laboratoires D'Essais et de Recherches sur les Materiaux et les Constructions (RILEM): Rilem Test Method 11. 12 erection of formwork on finished concrete surfaces 10 15. Furnish in largest practicable sizes to minimize number of joints. It can also be used for some industrial and engineering needs with less critical aesthetics. 1, and repaired (based on severity) per Section 3. 13. b. The European standard, EN10088-2, defines two finishes, '2J' and '2K'. Use Item 361, “Repair of Concrete Pavement,” for situations where the deteriorated concrete extends to the mid-depth of the slab. Equipment for concrete roughness measurement. 14 Apr 2017 CHAPTER 4 ACHIEVABILITY OF CONCRETE SURFACE FINISHES standard formwork and placement practices, should require no special Standard, in particular sections 3 and of a formed concrete surface for grey surfaces. Form 45° bevels, 25 mm on the face on corners and angles. Plain finish: A plain concrete finish requires the careful selection of concrete, release agent, and the use of good quality formwork. 1) on the surface of a concrete slab during finishing operations is annoying. SSPC SP 13 NACE No. 21 Particulars of formwork and finishes to concrete and samples of materials . A very smooth surface with almost no preparation at all will be a CSP 1. Feb 17, 2012 · The above discussions lead me to believe that Sa2. Some precast panels act as column covers while others extend over several floors in height and incorporate window openings. Use Item 720, “Repair of Spalling in Concrete Pavement,” or Item 721, “Fiber Reinforce Polymer Patching Material,” for situations where the deteriorated concrete is shallower than the mid-depth of the slab. Produce as-cast formed finishes in accordance with ACI 301 and as follows: 1. Specification for concrete surface finishes NZS 3114:1987 Specification for concrete surface finishes Categorizes by means of description and illustration various classes of surface finish of concrete obtained off-the-form, by exposed aggregate and on floors, exterior pavements and inverts. There are many concrete surface finish specifications that can be specified, for example; BS EN 13670 Execution of concrete structures – Basic, Ordinary, Plain and Special; National Structural Concrete Specification (NSCS) – Basic, Ordinary, Plain and Special 1. ’” High-traction surfaces, Kendzior reports, have been clinically proven to reduce slip-and-fall claims by 50 percent to 90 percent. Assess the relative roughness of concrete using this set of 9 rubber placards. I have added the following language to my formed concrete finishes specification section, for your use/critique: A. $84. ISO Surface Finish Symbols and Callouts Here are a few choices for you to consider when it comes to concrete floor finishes. Stephan reported floor flatness measurements from over 4000 readings taken on 11 buildings representing bullfloated concrete surfaces. The fallacy of the straightedge method was the location of the measurement. BD-042: Testing of Hardened Concrete BD-049: Specification and Supply of Concrete BD-066: Tilt-up Construction STANDARDS AUSTRALIA DRAFTS OPEN FOR PUBLIC COMMENT Should you feel that you have something to contribute to a Draft Standard, click on the link above and us the Public Comment Period to provide your view. 0 micrometers. 05 Dividing fences 21 2 FOOTINGS, SLABS AND SETTING OUT 22 building construction machinery and equipment - machinery for concrete surface floating and finishing - part 2: safety requirements and verification ISO 13105-2 : 2014 Standards Referencing This Book - (Show below) - (Hide below) Concrete placement, curing, and finishing can have significant effects on subsequent surface preparation and coating performance. For coating applications from 4–5 mils in thickness, the surface profile shall be a CSP 3. surface cement matrix from hardening, can be used to expose the most aggregate, yielding finishes that can be mostly stone . 3 Honeycombing current European standard for structural concrete, EN 206-1. 4. Exterior-grade plywood panels, suitable for concrete forms, complying with DOC PS 1, and as follows: a. They provide the finishing touch that adds lasting color and texture to exterior and interior walls. Concrete surfaces receiving a pigmented sealer shall have a Class 2 finish. The existing substrate must be sound, solid, and clean. At a distance of 30 to 50 feet, the floor will clearly ACI 301 has three levels of Surface Finishes - SF 1. ASTM C595/C595M - Standard Specification for Blended Hydraulic Cements. g. Unexposed Surfaces: 1. Precast concrete comes in almost an unlimited array of colors, forms and textures including exposed concrete, veneers of traditional materials, or a combination of both. The finished appearance of a concrete masonry wall can be varied with the size of units, shape of units, color of units and mortar, bond pattern, and surface finish of the units. Repairs are also made easier due to the abrasive nature of the concrete. It does not apply to any surface treated with a secondary finishing operation (using chemical or mechanical means) such as polished, honed, grit (sand) blasted, acid etched and 420 Concrete Substructures 4. As with any matte product, owners of Concrete and Rough Concrete finishes may see an increase in smudges from everyday living. 19 steel reinforcement decking 12 15. Concrete Slab Surface Flatness (also referred to as Surface Regularity) Surface flatness must not be confused with surface level relative to a fixed datum. Setting tolerances also demonstrate that some degree of variation is inherent in all building work. Title Latest Revision SURFACE PREPARATION SSPC-SP COM . References to specifications and standards published . 2 μm (125 μin). ASTM C 779 - Standard Test Method for Abrasion Resistance of Horizontal Concrete Surfaces. 33 A2. In its simplest form, a wooden beam is moved across the levelled surface in a series of close up and down tamps. ” Alternatively, this technique can be used to install a pigmented dry-shake finish, creating the desired colour on the top surface of the concrete. 7 kg per 19-liter pail (70 lbs per 5-gallon pail) Coverage Apr 27, 2017 · The surface should be thoroughly washed after the acid treatment as otherwise it will have a mottled, streaky appearance. Surface Smoothness . 28 Apr 2016 Specifying Concrete Floor Coatings and In combination with other floor finishes Standard Guide for Concrete Coating Finish Texture*. Best Practices for Preparing Concrete Surfaces Prior to Repairs and Overlays. 3 Storage of Materials Cement, silica fume, fly ash and steel fibres shall be stored in a suitable weather-tight building which The latter category includes sandblasted, polished, honed, water washed, acid etched and like finishes where the off form surface layer of fines is removed. 7 Retarded Finish . This finish is one of the most economical. May 14, 2020 · Broom finishes have been used for many years and provide a durable, high-traction surface. concrete surface finish N/A Urban area where aesthetics is important to the Community Apply Class 3 finish Details 4 and 5 : Deck/Slab and Exterior Concrete Girder in the middle of Parallel Structures where distance between the structures (edge of deck to edge of deck) is less than 1 foot Do not apply surface finish N/A : Riser and Shear Key Nov 20, 2019 · All concrete ingredients must comply with the American Society for Testing and Materials (ASTM) standards. 1 General information 52 119 P2. Looks at the factors influencing unformed finishes, including size of area , finishing method, concrete characteristics and execution, and where to find Acid etching dissolves cement and exposes fine aggregates, leaving a sandpaper-like finish. placed on the colored concrete surface after floating. A finishing cutting pass can be applied to reduce the roughness of a surface down to 1. rev March-2017 SSPC-SP 1 POLISHED AND STAINED CONCRETE. 33 The current New Zealand standard NZS 3114 requires that concrete floor surface regularity be measured using a straight edge specification. 11 Prestressed concrete construction 51 118 P1. 5, it is not possible to construct concrete floor The final appearance of a concrete floor will never be as uniform as a coated surface finish. 02 Finish to external concrete paving 21 1. 8 Class of surface finish (or Class) Standard of the untreated concrete surface of the formed concrete. the finished concrete surface is not permanently stained nor discoloured by the choice of the release agent used. Standard Stove Dimensions (Size Guide) . 14. It is used to remove laitance and to delicately roughen a surface in The concrete produced must provide the required surface finishes and comply with the appropriate standards and project specification. 4: White Fibre Cement; Brick; Concrete, Light Grey, Smooth: 0. 20 formwork temperature 12 May 07, 2018 · An exposed aggregate finish combines elements of plaster finishes with standard aggregate. American National Standards Institute (ANSI): Standards B- 11 Sep 2015 There is a great deal of confusion in the world of flat concrete floor is or is not ' good' concrete floor finishing from reference standards such as 14. 8 Concrete 46 117 P1. 9 Surface finishes. Permanently exposed concrete surfaces to all Classes of finish other than F1 shall be protected from rust marks and stains of all kinds. Inventive patterns, color choices (unit and mortar), unit sizes, and surface finishes (split face and standard) can be used in various concrete masonry bond patterns to evoke a sense of strength, modernity, tradition, or even whimsy. Timber Formwork Grey. After 24 hours, the salt is washed away with water and a brush. finishing the surface too soon. There is no prescription of the appearance or roughness of the '2J' finish, but '2K' is defined as surface Ra below 0. NewCrete in particular stands out, because it simplifies and speeds up the workmanship standards and building code requirements, the latter should prevail. This is the first CSDA standard for measuring concrete surfaces for their surface texture value. Concrete curing. 18 Cement mortar for concrete surfaces . Cracks in concrete slabs. The surface finish has a low reflective matt appearance with typical average roughness values ranging from 0. It also Some Australian Standards specify tolerances for concrete surfaces and it is important to understand finish to the surface, e. Ra 1. A contractor shall perform all work in a professional and workmanlike manner. 4) ACI 301-10 specifies concrete surfaces (Section 5. There are various methods and performance standards tests that can be a deciding factor when demonstrating why a Sherwin-Williams concrete coating may be a better choice than a competitor's coating. This article considers what the strength and surface finish for structural concrete including the requirements for Australian Standards and VicRoads Codes of Practices are referenced in an Section 033000 – Cast-in-Place Concrete: Requirements for slab-on-grade design Section 099000 – Painting and Coating: Site-finishing of panels as applicable. Broom finished thin overlays add skid resistance and upgrade a deteriorating concrete surface. They varied in composition (Concrete, Clay), spacing (bevel size, no bevel) and degree of herringbone placement (45, 90) as shown in Table 2. For a darker, almost black surface we supply the stunning Anthracite concrete surface. Tolerances can be defined as the allowable variations from the specified values or performance levels. 2 Specification for Shotcrete 530. Apply the coating or special finish from Table 1 as specified on the plans. 8 or 0. Frequent close scrutiny. Innumerable products and methods, including everything from curing compounds, light duty spray-on sealers, and concrete stamping, to concrete polishing, staining Jun 01, 1971 · Finish F5. Prices can vary from £20/€25 to £150/€180 per square metre but I’ve known people who have spent £400/€480 per sqm! L Australian standards and other referenced material 18 M Schedule of references used in this guide 19 1 SITEWORKS (PAVING AND LANDSCAPING) 20 1. It is a concrete that is designed to resemble brick, slate, flagstone, stone, tile and even wood. surfaces; six studied over three years and three surfaces added in the last year. 10 Component A structural member. for a list of standards that are new or have been revised since 2014. 10 Precast concrete 51 117 P1. 8: White Paint on Plasterboard; Tiles: 0. Document History NZS 3114 Concrete is the basic material of construction , without concrete construction is incomplete . 30 A2. A slightly lighter version of the standard smooth Vintage Grey. • Any finishing operation while bleed water is on the surface. As with terrazzo, the smooth polished surface requires care to prevent slip and fall accidents in wet conditions. 18 Nov 2003 CONCRETE FINISHES. 36M standard. According to Shamrock Concrete, the tops of exposed pebble and rock are approximately 1/16- to 1/8-inch above the base concrete surface of the driveway. 4 - Standard Measurement of Reduction of Moisture Penetration through Horizontal Concrete Surfaces. 13 Further information 52 118 Section P2 Information to be supplied BY the Constructor 52 119 P2. Surface finish is defined in BS EN 13670 (4) and this Standard is adopted by NSCS 4th Edition (5) for concrete construction. Knowing the standards are important for any abrasive blaster, and is a necessity for certified blasters. Guidance in the standard This guideline provides concrete surface profiles of CSP 3 to 9 which are used under the following conditions. Embedded waterstops for cast-in-place concrete. Today polymers can be applied as thin as 1/8 " or up to 3/4" thick and stamped, producing a surface that looks just like a normal stamped concrete surface. (3. There are four types of surface finish – Basic, Ordinary, Plain and Special. Nov 20, 2019 · The driveway finish reveals smooth textured stones and pebbles that are part of the concrete surface. F5 This finish shall be obtained by first producing a type F3 finish and then, while the concrete is still green, filling all surface blemishes with a fresh, specially prepared cement and fine aggregate paste. 01 history of flatness and levelness measurement of concrete substrate surfaces to receive flooring For over 50 years, concrete floor surface tolerances were typically measured and described by the maximum gap allowed under a 3000 mm (10 foot) long straightedge placed anywhere on the floor surface. Types of Finish Stainless steel is available in a wide variety of standard and special finishes. 0 (SF-1): a. This concrete finish also offers a nice uniform color. Find out what different concrete floor finishes cost and The surface will have a much higher sheen than that of level 2 finish, and you'll start to see good light reflectivity. Typically, the formwork is built out of sheets of plywood that the wet concrete sits against, and the curing (drying) concrete takes on the patterns of the plywood surface The finish coat is applied to a predamped, but still absorptive, base coat to a thickness of about ⅛ in. The finishing of the surface shall follow immediately after the cessation of beating. Finish Types Type A - Scratched Finish After the concrete has been placed, struck off, consolidated and levelled to a Class 3 tolerance, the surface shall be roughened with stiff brushes or rakes before final set. See Clause 3. Quarzputz®, Sandblast®, Freestyle®, Sandpebble®, and Sandpebble® Fine finishes are premixed 100% acrylic-based coatings which are offered in standard colors as well as custom colors. 503. Factors influencing the concrete surface such as material parameters, chemical admixtures, mix design, formwork, form releasing agents and production techniques are discussed. 1R - Guide for Concrete Floor and Slab Construction. January 1, 1987. " 2. 09. 11. Sealing concrete surfaces. Caltrain Standard There are many concrete surface finish specifications that can be specified, for example;. The only standard is that of the NFSI’s 101-A standard, which calls for surfaces to have a wet Static Coefficient of Friction value of 0. In this article i am going to tell you type of finishes in concrete work are :-Classes of Finish. 23. It has been made the industry standard for non slip surfaces. Repeat grooving of contraction joints after applying surface finishes. The waiting period depends on the weather and the mix design of the concrete. Dimensions of building elements. 32 A2. Position Statements #1 Slab Protection by Others #2 Slip Resistance of Polished Concrete #3 Coordinating the Concrete and Polishing Contractors Subcontracts #4 Separation of Semirigid Concrete Floor Joint Fillers #5 Effects of Slab-Surface Finish Density on Polished Concrete Aug 17, 2018 · Using silica sand, paste, fine aggregate, and coarse aggregate are all “blasted” away, leaving a flat, dull, matte finish. When skillfully designed, simple materials can provide unparalleled aesthetic enhancement. Resurfaced an old sideway w/ Sakrete Sand Mix and Fortifier/Bonder. Callouts and symbols used for different surface finishes can be slightly different, so we’ll look at a couple. 08. Texture Finish Can also be utilized as a textured finish for poured concrete or unit masonry, conventional stucco, Senergy Stucco Wall System, Senergy Cement-Board Stucco, certain insulating concrete forms, and interior veneer plaster or gypsum wallboard. F4 Structural surfaces of importance observed frequently. 2 The provisions of this Standard Specification shall govern unless otherwise specified in the Contract Docu-ments. 1 – 0. The average floor flatness for all the buildings was an F F of 20 with individual building measurements ranging from 15 to 25. Surface finish specification. Class F1 Finish a. A contractor shall perform all work in accordance with any applicable building codes and professional industry standards. GENERAL This section relates to the standard of concrete finishes, exposed aggregate surfaces, floors and pavements, plain and textured. CSP 3. 00. 5—Sawed contraction joints 5. 5 micrometres. This type of concrete is commonly referred to as textured or imprinted concrete. Finish Types. Place, strike off, consolidate, level and float to the proper elevation. The material is then skimmed over with a cementitious material, filling any voids and air pockets to create a finish that is smooth to the touch. 5 Unspecified Finish 10-2 10. 6 Related Unformed Surfaces 10-2 Chapter 11 - Slabs 11. 2 mm). Concrete floor finishes and coatings are not “one size fits all. 3 An acceptable prepared concrete surface should be free of contaminants, laitance, loosely adhering concrete, and dust, and should provide a sound, uniform substrate suitable for the application of protective coating or lining systems. After curing, rub treated surface with abrasive brick and water to slightly expose abrasive aggregate. or a troweling exhibit a definite polished sheen. Little of the exposed surface is the characteristic dull grey of the concrete fines. AS 3610. Similarly to the 1D surface finish, the 2D can be the starting point for polished finishes. • Insufficient curing, results in weak surface skin For a successful concrete resurfacing project, proper surface preparation is critical. Available in rapid and low VOC / low odor formulations, these products allow for the repair of cracks, spalls, divots and other surface imperfections, to ensure that the final 13 Appearance and surface finish 40 . easily covered by a standard paint system, such as Resene Concrete Primer (see Data. The rest of the world commonly uses International Organization for Standardization (ISO) 1302. The various shapes and sizes of concrete masonry units described above are often available in a choice of surface finishes. Smooth or off-the-form finishes show the natural look of the concrete without trying Acid etching dissolves the surface cement paste to reveal the sand, with only a and knowledge of composition and performance standards is necessary to This standard is issued under the fixed designation F 710; the number immediately ity of a concrete floor for the installation of resilient flooring. Differences in level between dissimilar types of floor, such as where a suspended timber floor meets a concrete slab floor, exceeds: ȣ 10 mm at internal doorways where there is a graduated change (e. Creating these finishes requires different tools. Surface Area IV includes areas designated on the plans. 13 Sub-baw- The prepared surface on ground on which base con- crete is laid. Of a kind and standard appropriate to the nature and character of that part of Floors to be self-finished, and floors to receive sheet or tile finishes directly therefore to these pins until such time as the basement slab concrete has matured. Class 1 concrete surfaces shall be designated on the contract plans. Surface Tolerances 23 Surface Finishes 26 Mock-Up Samples 27 Wear Resistance & Colouration 27 Wear & Abrasion Resistance 28 Acid Stains & Dyes 29 Integral Colouring 29 Curing 30 Joint Fillers 30 Sealers, Coatings & Densifiers 31 Floor Sealers & Coatings 31 Penetrating Densifiers 32 Special Concrete Floor Surfaces 33 Concrete and Rough surfaces may require additional daily and weekly care. D. 0, SF 2. F3 Exposed surfaces not subjected to close scrutiny. This is an excellent, peer-reviewed analysis from the U. Concrete Solutions in San Diego, CA. Special architectural finishes for formed concrete surfaces shall conform to applicable requirements of ACI 301. 5μm (20μin) Rz = 1. Unless otherwise described NZS3114:1987 Specification for Concrete Surface Finishes. Finish to shown that the current New Zealand standards for concrete surface finish tolerances for suspended slabs are not achievable. Any surface receiving a cementitious coating must be clean, cured, sound and profiled. A concrete surface profile, known as a CSP, is a standardized measure for the ‘roughness’ of a surface that is defined by the International Concrete Repair Institute (ICRI). ” There are myriad flooring systems available to meet the needs of virtually any environment and facility operation. 1 Indian Standards. 15 form tie bolts 11 15. Costs depend on whether the concrete is new or existing, on what scale you’re thinking as larger surface areas can be relatively cheaper, how complex your final finishes will be, and much more. This is in contrast to a smooth concrete finish in which the visible surface is primarily composed of the concrete "fines" (very small concrete particles). the top surface of slabs or. 0 CONCRETE PLACEMENT. All materials should be Exposed aggregate, sandblast, acid etched, broom finish, hard trowel, radient floor heat, garages, patios, driveways, walkways, concrete. GC is to provide posted rules at jobsite for concrete floor protection. 6. Classes 1, 2 and 3 are typical architectural applications where the concrete surface visual quality is important. 13 (Ordinary Surface Finish) Spalls are defined per Section 2. 3 Standard Specification for Producing a Skid-Resistant Surface on Concrete by the Use of a Multi-Component Epoxy System 503. Brushed finish. 1/8 inch below a 10-foot(23). The standard concrete floor specification included in this guide has added. NZS 3121 Achieve the standard of the specified finish required, direct from the formwork with a minimum of 10 Jan 2011 Three new surface finishes for as-cast formed concrete are defined in the new Class C Surface, +1/2 inch, general standard exposed surface. Scaling concrete surface WHAT is Scaling HOW to Prevent Scaling CIP 2 - Scaling Concrete Surfaces WHY Do Concrete Surfaces Scale Concrete slabs exposed to freezing and thawing in the presence of moisture and/or deicing salts are suscep-tible to scaling. I have added the following language to my formed concrete finishes Simply reference the standard and finish designation; no need to repeat the 5 Apr 1995 integral part of the Standard. Four of the squares came out great with a smooth finish using a steel trowel, the cream came to the top easy, then I brushed w/ a broom after a few hours. 6 at Engineering360. Categorizes by means of description and illustration various classes of surface finish of concrete obtained off-the-form, by exposed aggregate and on floors, exterior pavements and inverts. 4 Rubbed Finishes 10-1 10. Be sure to meet with your local CMU representative to learn about what types of finishes they offer and at what cost premium. The surface of the old concrete should be thoroughly scrubbed to remove dust or dirt, and should be damp but not overly wet when the new concrete is placed to secure a good bond. mm for a 10 mm diameter masonry anchor. 03732), Selecting and Specifying Concrete Surface Preparation for Sealers, Coatings, and Polymer Overlays “Unfortunately the ASTM has yet to create a slip resistance standard for concrete surfaces. Standard specifications for civil engineering construction, GE, Precast concrete (structural) SABS 1200 GF-1984 (SANS 1200 GF-1984). Alignment, appearance very important. 0 Cracking in concrete paving 6 . 20. STS 404 – Concrete Supply and Construction (Water Retaining Structures) HW2009-2368/2/12 Warning – This document is current at time of printing or downloading. Hard-troweled finish - Surface finish obtained by using a trowel with a steel blade for final finishing of concrete. EXPOSED AGGREGATE - CHEMICALLY RETARDED AND SANDBLASTED Definition - This finish is achieved by casting against a form surface that has been painted with retarder which retards the set of the concrete at its surface. Surface Finishes. deep,” it is uncommon to measure groove depths and no standard exists for measuring striation or groove depths of a This layer may be formed by excessive surface trowelling of concrete immediately after it has-been laid. As the concrete finish is not important visually, making good is acceptable and so blowholes and minor surface blemishe s can either be dealt with or accepted untreated by agreem ent between the CA and Constructor based on achieving an overall standard similar to the reference panels. 10. The practice in Australia is only to use 'No 4' as a description of a polished finish and it is not a rolled finish. Additional Honed concrete is the matching outdoor finish for the indoor Mechanically Polished Can you make our polished concrete floor non-slip? If you are using a standard concrete mix, ensure you request fresh water over recycled water to 19 Feb 2010 Created on February 19, 2010 using FlipShare. 27 Mar 2020 Compare concrete floor finish options such as staining, polishing, coatings, and more. ASTM A496 - Standard Specification for Deformed Steel Wire for Concrete 13. 1 Table 3. 2:1987 In-situ floor finishes – Code of practice for concrete wearing surfaces at 5. After the panel is removed from the form, the retarder is removed by sandblasting. 9 Apr 2013 Concrete Surface Finish Requirements of textures or graphics other than those shown in Design Standards Index 5200 for retaining. Light Vintage. Standard Finish for Exposed Surfaces. See our Surface Preparation products for more information on accomplishing this; Make sure your surface is flat. Common tolerances were 1/8 inch or 1/4 inch in 10 feet. Pay attention Standard Our standard finish is achieved by grinding into the surface of cast concrete to expose the internal aggregates. Smooth-Formed Finished Concrete: Form-facing panels that will provide continuous, true, and smooth concrete surfaces. Retarded finishes can be light, medium , heavy or exposed aggregate. We’ll show you the tools and how to use them for each step of the concrete finishing process. 0 FINISHING FORMED SURFACES. ” 6. A Concrete Surface profile (or a CSP for short) is simply a standard measure used to determine the profile. 9. Class F2 Finish a. Related Work Not Included in This Section: 1. ASTM C309 - Standard Specification for Liquid Membrane-Forming Compounds for Curing Concrete. These products help properly prepare and address substrate issues prior to coating. Certification available at additional cost. 2 Submittals 10-1 10. Class C - general standard for permanently exposed surfaces where other finishes are not specified; Class B - intended for coarse-textured, concrete form surfaces intended to receive plaster, stucco or wainscoting; Class A - suggested for surfaces prominently exposed to public view where appearance is of special importance Nov 25, 2008 · Considering what form substrate what form substrate material and what surface finish will be best for an application depends on the surface finish specified for the concrete, the number of form reuses the project requires, the strength and deflection characteristics of the substrate, price, and perhaps the thickness tolerances of a product—especially important for architectural concrete work. SURFACE FINISHES. Simply put, it’s a way to determine how well you have prepped the floor, and it’s useful because it’s going to help you determine how well the floor is going to react with your coating or overlay. Finishing concrete surfaces including both formed and unformed surfaces. Ra 6. Mar 27, 2015 · Specifiers sometimes require a 3 x 3-m (10 x 10-ft) mockup demonstrating typical joints, surface finish, texture, tolerances, and standard of workmanship produced by the contractor’s methods. 117. 2 Jan 23, 2018 · A standard epoxy finish is ideal for floors in highly trafficked areas of your home. 15. Salt Finish Rock salt is pressed into the surface after finish-ing. 6 Standards for the Surface Preparation of Concrete Architectural Precast Concrete Finishes Guide I. ". Read on to learn about a few of the different indoor concrete floor finishing options. Finishes for slabs and flatwork shall conform to applicable requirements of ACI 301. 1 standard has defined the requirements for concrete floors and finishes as follows: Prior to 2004, slab and floor finish classifications and level 20 Jun 2016 When it comes to existing concrete floor(s), the finishing decisions become that are produced in plants with strict quality control standards. Surface of high importance. Concrete floors are constructed from naturally occurring materials, finished by techniques that cannot be controlled as precisely as in a factory process, and the conditions during installation will vary. a formed surface and grey concrete. The art in traditional rendering is (apart from getting the mix right) the appearance of the top coat. Concrete standards, materials, mixes and tests, placement, finishing, patching, grouting, and crack repair. Specify floor finish tolerance Supersedes: Standard Specification for Urban Infrastructure Works Section 15 Finishes. Section 3 In terms of applicability, this section makes it abundantly clear that the Standard applies only to off-form surfaces. their “cement finishing” roots to include all aspects of concrete floor construction. Finishes of formed concrete surfaces shall conform to applicable requirements of ACI 301. The Formply Product Formply is manufactured from wood veneers glued with synthetic adhesives and overlayed with “phenolic impregnated papers”, also called phenolic surface films. 3 Per Section The resurfacing material simply spreads over the existing, spalled concrete surface to create a fresh, flawless finish. 310. Wolf et al. Mahr Precision Reference Standard 2248514. it discusses avoid damage to the concrete surface and allow higher standard than concrete elements constructed. Depending on where the measurement was made, the slab may pass or fail the specified ICRI Surface Finish Comparators. Paint coatings can, in addition to decorating concrete, protect the surface from erosion and other traditional finishes mainly in the Canterbury area. Download Concrete Coating & Substrate Testing Standards PDF. ACI 308, “Standard Practice for Curing Concrete. The International Concrete Repair Institute (ICRI) provides a qualitative method of evaluating surface roughness using nine different visual comparators, and ASTM D7682 describes a procedure for creating a replica of the prepared surfaces using a putty, then measuring the depth of the roughness using a special micrometer. The phenolic surface film is often referred as “plastic face”. Mahr Precision Reference Standard 530-RS7. Did it in 5 equal squares w/ control/expansion joints between. Standard surface finish details for off the form finishes, exposed aggregate surfaces, floors, etc. The standard assigns a numerical texture-grading code to the finish so the design community and end users alike can begin to have a more structured conversation about the quality and sustainability of a polished concrete surface. 12. 6 or greater to be considered ‘High-Traction. 7—Repair of surface defects ACI 301-A Kansas City Exhibit 4 CONTRACT NUMBER 59/3/8228A CONCRETE FINISHES Finish the unformed surface of the concrete in accordance with Unformed Surfaces Schedule. Steel lining or steel sheathing is not permitted. machine (with float blades flat) without digging into the surface. Definition of the concrete surface roughness in accordance with the German Standard “Rili-DAStb”. 03732, “Selecting and Specifying Concrete Surface Preparation for Coatings, Sealers and Polymer Overlays. For example, the Society of Plastics Engineers from the 1960s through 1980s offered a scale of 1 to 6 to specify mold finishes ranging from a high-sheen diamond polish to rough blasted surface. Mahr Precision Reference Standard. ASTM Standard C 926, Specification for Application of Portland Cement-Based Plaster, permits direct application of stucco to solid surfaces like concrete and masonry as long as bond is sufficient. If you pour a specific type of stain on the concrete, it will react with the surface and create a color on the floor. These samples replicate ten grades of surface roughness , and are designed for direct visual and tactile comparison to the concrete surface in question. 24. Standard Rough Form Finish. This finish is applied by brushing the concrete surface with a broom just before the concrete Smooth surface finish of glass fiber reinforced concrete parts follows general company RECKLI, represents an interesting alternative to standard surfaces. 01 Cracking in concrete paving 20 1. This is a better reference than a small sample panel, but is still not indicative of what can be achieved for a large-scale concrete placement in a See full list on kta. 5 is not a "surface finish" but a visual standard for cleanliness and is not related specifically to grit size and surface roughness standards like Ra / Rz, and it cannot be measured with a profilometer. Defined Volume V (25 cm³ or 50 cm³) Dried kiln quartz sand 0. 1 General 11-1 Render finishes. 0 Foundation and site drainage – maintenance after occupation 7 1. Further, no concrete finishing operation shall be permitted while there is water on the surface of slabs and other flatwork. Dark Vintage A brushed concrete finish is created by dragging a brush over the surface of a new concrete floor once it has been levelled to create a textured appearance. Rough Form Finish: For formed concrete surfaces not exposed-to-view in the concrete work in compliance with the American Concrete Institute Standard Forms for Exposed Finish Concrete: Unless otherwise shown or specified, construct all formwork for exposed concrete surfaces with plywood, metal-. of the fixing from the edge of the slab is required to be between 50 mm and 70 mm for standard 20 MPa concrete. 8: White Paint on Plain Plasterboard: 0. Concrete Wall Finish Oxidizer for Oxidized Steel Coating - 33034-500. Exposed aggregate may also be used in unformed surface, resulting in a shallow texture. BS 8204. 2 Surface finish P(1) The formwork shall be designed and constructed so that there is no loss of fines, or blemish of the concrete surface. Applications and finishes used to increase a surface material’s slip resistance may require continued maintenance or re-application. 1, 3. Due to the nature of the surface design, it is recommended that common household spills like liquid droplets and rings are dried immediately. Packaging 31. 5 percent per square foot) of area. For more information about tamped concrete finishing why not read our concrete finishing FAQs? Or contact our team on 01590 676 585. 1R, “Guide for Concrete Floor Slab Construction. 18 void formers 12 15. The surface shall be A brush finish is added to a concrete surface to give it traction and a standard appearance. Form oil should not be used. Follow recommendations of stamping tool manufacturer. Finishing”6. It may be reviewed and amended prior to the noted ACI-301-10 Specifications for Structural Concrete covers general construction requirements for cast-in-place structural concrete and slabs-on-ground. CONSTRUCTION STANDARDS. Castings with a significant number of voids must be post finished or discarded, resulting in wasted product, time and labor. 2 Toolm ind Acceasoric?a The appearance of blisters (Fig. 13 SCI Publication P300 and Concrete Society’s Good Concrete Guide No. The main focus has been on evenness of colour, occurrence of voids and pores and cracking due to drying shrinkage. Class D - Minimum quality surface where roughness is not objectionable, usu- ally applied where surfaces will be concealed. Concrete stamping is a popular way to add texture and visual interest. Check out our other educational sections: Concrete & Masonry 101 Concrete Masonry Unit (CMU) Surface Finishes As with shapes, there are a large number of finish options so you can make the utilitarian gray concrete block look much more aesthetically pleasing. NZS 3114:1987 Specification for concrete surface finishes provides the format for the specifier’s concrete finishing requirements to be communi-cated to the contractor. Levelness of concrete floors. CONCRETE SURFACE FINISHES Concrete surfaces may be finished by tooling by any of the methods employed for dressing or finishing natural stone. 2 Brushed concrete is a type of finish, in contrast to the smooth finish that people may refer to as "finished concrete. SPARTACOTE™ by LATICRETE offers several products to help with concrete repairs. Visually important surfaces For concrete of surface finish classes 1, 2 or 3, set out the formwork to give a regular arrangement of panels, joints, bolt holes, and similar visible elements in the formed surface. The finish should be properly identified by a standard industry designation or by a trade name. Special stamping tools are pressed into the concrete to create a pattern and then removed. 1 RELATED WORK Refer to 2110 SALVAGE for concrete wall Refer to 3120 PRECAST CONCRETE - FINISHES for precast concrete Sep 08, 2017 · Standards for Measurement of Surface Profile There are currently four primary standards for measurement of surface profile in steel surfaces. ASTM's cement and concrete standards are instrumental in the evaluation and testing of concrete, cement, and aggregates. carpet or tile edging bars), unless a ramp is specified. Stamped Concrete . Dec 09, 2019 · For the phrase “striating float-finished concrete surface 1/16- to 1/8-in. 2. 3. Finish the unformed surface of the concrete in accordance with Unformed Surfaces Schedule. 6 Sm = 50μm. The standard as-machined surface roughness is 3. Use only when the product, air, and surface temperatures are above 50 0 F for a minimum of 24 hours. 4 defines three classes of surface regularity: SR1, SR 2 and SR 3, though the deviations differ from Apr 09, 2015 · trades are aware of proper care for and protection of concrete surface during construction to insure the best quality finish product. During concrete finishing observations, consider the following information: Pavement can be durable with inadequate texture or be well textured and not have enough durability to retain the texture. The bull float is a flat, long-handled tool used to flatten minor ridges and holes, as well as embed aggregate particles further into the concrete, bringing the smoother "cream" consistency concrete to the surface for better finishing. It describes the materials, supply, placing, compacting, finishing, curing and a hard surface for construction of concrete members. 0, and SF 3. A 2,500 psi pressure washer will remove most contaminates. The smooth Concrete finish with a subtle aged and weathered effect. Experienced concrete finishers Standards New Zealand also offers this standard to be purchased as Hard Copy or Online Library subscription. (20 mm) top-bar concrete cover. A tamped concrete finish is frequently used for walkways or areas such as farmyards. ” 9. A straight edge is moved across the concrete ACI Manual of Standard Practice for Detailing Concrete Structures and the A. 3 As-Cast Finishes 10-1 10. How to solve concrete discoloration: Specify with the ready-mix supplier your tolerance levels; Prepare a uniform subgrade; Wait until all the water has evaporated before finishing the concrete; Avoid hard troweling on the exterior surface buy nzs 3114:1987 specification for concrete surface finishes from sai global . Standard specifications for civil engineering construction, GF, Prestressed concrete Jul 17, 2014 · When concrete walls gets placed (or poured, cast or set … whatever) there is formwork that gets built on site that holds the wet concrete in place until it has hardened. 06 The General Contractor shall provide substrate surfaces that are smooth (for concrete see Concrete Surface profile, CSP chart), porous (to ASTM F3191), flat (to minimum industry standards), level, thoroughly dry, and free from alkali, dust, dirt, adhesives, paint, varnish, solvents, oils and grease, waxes, release agents, sealers and curing and hardening compounds that are incompatible with adhesives and other flooring materials to be used or that are unacceptable or detrimental to the Jan 16, 2008 · A honed concrete surface has a matte appearance and/or slight clarity of reflection that has a low, medium or high sheen. Surface Finish 1. 17 lost formwork 11 15. Where the concrete surface finish is not subject to close scrutiny and viewed as a whole, Class 3 should be specified. Concrete can have different properties depending upon the mixture that is used in creating it, which contains cement, chemical admixtures, and aggregates. 5. Factors to consider when purchasing and applying a concrete surface treatment 3124 INSITU CONCRETE - FINISHES 1. Different finishes can be created by using different tools such as trowels, sponges, or brushes. The type of finish obtained will depend upon the coarseness of the brush bristles and the length and shape of the tufts. 2 Design 53 119 Specifi cation See full list on cnccookbook. 5 Removal of Stains, Rust, Efflorescence, and Surface Deposits 9-2 Chapter 10 - Finishing of Structural Concrete Formed Surfaces 10. Apply coatings once the new concrete has aged a minimum of 28 days except for the adhesive grout coating. 1. Using grinding and densifying techniques the concrete itself is finished as a decorative wear surface. Ra 0. This will increase the cost of producing a part, as extra machining steps and tighter quality control are required. 4—Finishing unformed surfaces 5. Most scaling is caused by: a. 1 SCOPE This Standard sets out requirements for the design, fabrication, erection and stripping of formwork, as well as the specification, evaluation and repair of the quality of the formed concrete surface and the influence of this activity on the design and construction of an in situ concrete structure. ȣ 2 mm where the floor plane is intended to be flush. 4 μm (63, 32 or 16 μin). 8. 4 Standard Specification for Repairing Concrete with Epoxy Mortars 506. Specification for Concrete Surface Finishes. C. 12 Deflection allowances 52 118 P1. Surface finish, also known as surface texture or surface topography, is the nature of a surface as defined by the three characteristics of lay, surface roughness, and waviness. How to Define the Concrete Surface Roughness. F1 Roughness permitted: fill tie holes, defects. 3 for further guidance. May 06, 2013 · ACI 301 has three levels of Surface Finishes - SF 1. The Australian Standard for formply is AS 6669 “Plywood Formwork”. For each type of finish indicated on exposed surfaces of precast structural concrete Standards and Guidelines for the Erection of Precast Concrete Products. Class 2 finishes do not have to be identified in the plans. An epoxy finish is durable, abrasion-resistant, and chemical resistant. 5 Sand or Abrasive Blast Finish . Formed Surfaces; Unformed Surfaces; Formed Surfaces Class F. 2 Applicable Standards The International Concrete Repair Institute (ICRI) is devoted to prolonging the useful life of concrete through quality repair, restoration, and protection. Finishes that are exposed and subject to foot traffic shall receive a broom finish with a texture of plus or minus one-sixteenth (±1/16) inch or as designated on the DRAWINGS. To minimize the potential deformation, low-shrinkage concrete can be specified. Cement: 1. 3 mm. Concrete that will not be exposed in the completed structure shall be any form finish as specified in Section 03 11 00 - Concrete Forming, and ACI 301 for "rough form finish. Putting a smooth, durable finish on concrete is a skill you can only master with the proper set of tools and practice. If the concrete is already in place, you can resurface it with a stampable concrete overlay called Pasto. com Sep 02, 2020 · Concrete surfaces are prepared prior to resurfacing concrete to look like plain concrete again or to be upgraded to a decorative finish. 1/. The new concrete should have a color matching that of the older adjoining concrete. Scope This New Zealand Standard classifies concrete finishes for off-the-form surfaces, exposed aggregate surfaces and floors, exterior pavements and inverts. 4 When required, a minimum concrete surface strength, maximum surface moisture content, and surface profile Concrete Floor Slab Flatness and Levelness Traditionally allowable tolerances of concrete floor slabs were determined by checking the slab surface with a 10 foot straightedge. Apr 21, 2019 · The most basic type of concrete finish is a smooth surface created through the use of screeds and trowels. The use of non-air-entrained concrete or too little entrained air. Jan 27, 2019 · 6. If in need of patching, we suggest using Wall Stamp to fill large voids on vertical surfaces. Thanks to the different types of concrete floor finish options that are now available , A float finish concrete floor creates a compact, smooth, and sturdy surface by running a float over laid concrete. There are various architectural concrete surface finishes, for Surface finish. Make sure that the contractor performs preliminary finishing according to specifications and in a way that imparts the desired surface characteristics. Buy this standard Abstract Preview ISO 13105-1:2014 defines terms and commercial specifications for machines used for concrete surface floating and finishing (also known as power trowels). Stamped Concrete Finish. The most common types of finishes available include: Smooth or off-the-form finishes show the natural look of the concrete without trying to simulate any other building product. surface finishes ranging from traditional trowel finishes to exposed aggregate, imprinted, pigmented, stained and dyed and polished concrete using a wide range of specialty liquid and cementitious materials systems repairs and restores existing concrete surfaces and structures Cement (Concrete) Finisher is a trade regulated by the Ontario A2. Concrete surface must be fully and uniformly protected for 28 days after pour. 1— This Standard Specification covers requirements for the materials and production of cast-in-place architectur-al concrete having as cast or treated surfaces which are listed in the specifications and located on the plans. Do not apply coatings when surface temperature of the concrete exceeds 110°F. RULE 4-9-108 WORKMANSHIP STANDARDS . Concrete is one of the most durable types of flooring, and it can be highly customized to fit your design needs. ASTM C330/C330M - Standard Specification for Lightweight Aggregates for Structural Concrete. 8 Tooled or Bush-hammered Finish. surfaces within 72 hours after completion of slab concrete finishing operations. L Australian Standards and other referenced material 15 M Schedule of references used in this Guide 15 1 SITEWORKS 16 . The SPI mold finish standards have superseded other finishing standards, but customers sometimes use old finish grades when writing mold specifications. Mar 27, 2015 · Released in 1989, “ Measuring the Quality of Floor Finishes ” by D. " The smooth finish is standard, but brushed concrete provides certain advantages -- and also disadvantages -- that you don't have with a smooth finish. 16 Aug 2018 If the requirements for the finish of the hardened concrete are important Typical classes of finish for formed surfaces are specified in: However ABS plastic and polyurethane are considered to be the industry standard, and Finished floor levels. It does not apply to any surface treated with a secondary finishing. GENERAL walks, etc). standard may be established for project. Photographic charts for the assessment of colour and surface finish are provided in the appendices. Any finishing operations done while the concrete is bleeding may result in serious surface problems later. Permanently exposed concrete surfaces to all Classes of finish other than F1 Standard shall conform to BS EN 13369 'Common rules for precast concrete 12 Aug 2019 There are various types of concrete surface finishes achievable and which In regards to specification and standards, BS EN 13670: basic, The application of the standard permits appropriate qualities of finish to be assigned to all surfaces being constructed, and attention to be drawn to specific needs Specification for concrete surface finishes. 4 Sab-&ors - The prepared surface of structural/suspended floor on which the floor finish is laid. on-center (two layers of 20M bars at 150 mm on-center) both ways, with a 3/4 in. 7: White Paint on Acoustic Tile: 0. Broom Finish: This is a standard concrete finish where the concrete is troweled to a smooth surfaced and then broomed to create a higher traction surface for outdoor applications. Grey textured Concrete with an embossed timber shuttering finish. Master Builders; Concresive Standard Liquid. This increases the water-to-cement ratio and results in a concrete surface that is overly porous and of substandard durability; and; improper curing methods or lack of curing. Where standard aggregate finishes use concrete as the main component, this type embeds pebbles directly into the plaster, giving it a far rougher texture. 5 FORM TIE BOLTS Bolt hole filling SYSTEM DESCRIPTION A. A very rough surface will have a high CSP number, such as CSP 9. Architectural concrete stays permanently exposed to view on surfaces of completed structures making important for the contractor to work with precision. The following IS Base Concrete: Flooring shall be laid on base concrete or suspended slab where so provided. 02 Finish to external concrete paving 6 2 FOOTINGS, SLABS AND SETTING OUT 17 2. 2 Blowholes 13. ASTM C150, Type to match original concrete surface. Table 1 Surface Finishes Coatings Special Surface Finishes Adhesive grout Blast Concrete paint Rub Opaque sealer Off-the-form 742 appearance coating Form liner Epoxy paint Exposed aggregate 1. 8 Concrete. 3: Brick, Common: 0. 6 bars at 6 in. Concrete block Coarse to very coarse Very high Medium Pinholes Shotcrete(C) Very coarse Medium Medium Too rough for thin coatings 1: P˛˚ ˜!ˇ F C (A)These surface properties are based on similiar concrete mix, placement, and vibration and are prior to surface preparation. E. 0. P1. B. 0μm (40μin) Sm = 50μm. Provide this finish for surfaces against which backfill or further concrete will be placed. American Concrete Institute (ACI): ACI 302. necessary to complete the construction of hot mix asphalt concrete pavement consisting of one or more courses on a previously prepared base, seal coat of asphalt cement and cover aggregate, and bituminous surface treatment in single or multiple courses. Use sawn boards, sheet metal or any other suitable material which will prevent the loss of fine material from the concrete being placed. --This finish is required for formed concrete surfaces where plaster, stucco, or wainscoting is to be applied. The most basic type of concrete finish is a smooth surface created through the use of screeds and trowels. High-pressure water blasting - A process for cleaning or roughening concrete surfaces using a stream of water delivered at high pressure. Concrete masonry surfaces are both absorbent and textured, two things necessary for bond. Apr 21, 2019 · Concrete Finishes. 16 moving and slip formwork 11 15. Table 4 summarizes the recommended nominal plaster coat thicknesses for both two and three coat work. 31 A2. The exterior surface of precast concrete can vary from an exposed aggregate finish that is highly ornamental to a form face finish that is similar to cast-in-place. Page 2. Consequently, overworking the surface will result in high w/c ratio, low strength, and reduction in air content. Fine surface details and sharp arrises can be achieved. 1 Compliance Broadcast aggregate uniformly over concrete surface at rate of application of 8% per 1/10th m2 (7. Certified W/5 μm stylus. 5. ICRI Guideline No. . 1. Specifications (UFGS) Format Standard when editing When exposed concrete surfaces are specified,. The Australian standard which covers surface finish is AS 3610—1995, Formwork for Concrete, and its Supplement 1—1990. P(2) Where a particular grade or type of finish is required for practical or aesthetic reasons, the requirements shall be specified directly or by reference to appropriate national or international documents or by sample surfaces. •Blasted: Sand-blasted or LEED-friendly steel shot-blasted finishes have a similar appearance to acid-etched finishes The most effective reference tool for determining concrete surface profiles is the molded rubber comparator chips, available from the International Concrete Repair Institute. Concrete which will not be exposed in the completed structure shall be any form finish as specified in Section 03100, Concrete Formwork, and ACI 301 for rough form finish. Often used where a smooth, hard, flat surface is desired. 15 Standard mix concrete . 4 to 1. Shop surface preparation supplies and equipment Architectural concrete construction needs special care in the selection of materials, forming, placing, and finishing in order to achieve the designated architectural appearance. Because exposed aggregate finishes will only be used where the surface is visible, the formed finishes F4, F5, F6 are extended to accept the exposed aggregate standard of F4E, F5E, and F6E. Treatment of concrete surfaces. The NSCS Standard Specification gives standards and technical data for 117. For slabs-on-grade, it is important that a sound vapor barrier be installed in accordance with ACI Standard 504 to mitigate moisture migration from the soils through the slab. BS EN 13670 Execution of concrete structures – Basic, Ordinary, Plain Cement and Concrete Terminology, In the lines and surfaces of columns, piers, walls and in ar- The Standard also suggests other tolerances spots in a floor or slab for four classes of finish: Class A finish. Abstract. compared poured concrete (control) to different types of brick sidewalks. The standard explains in detail how to measure the texture of a concrete surface by using a texture meter. 1 Introduction. Texture and pattern Exposing the aggregate in concrete can also create grain, texture and pattern in floor surfaces, which is particularly useful for areas requiring greater slip resistance Surface voids (small holes, also known as bug holes or pitting) found on the surface of concrete castings have affected anyone who has ever cast concrete. 25: Concrete, light grey; Cement, rough; Brick, red: Timber Panelling, light oak, mahogany: 0. Different tradesmen have different finishing styles and are able to produce different textures and decorative effects. 6 Acid Etched Finish. 13 dimensional tolerances 10 15. ASTM C989/C989M - Standard Specification for Slag Cement for Use in Concrete and Mortars. The texture of the brush finish will depend on the size and rigidity of the brush bristles used and the shape and length of the tufts. Article 1. 29 A2. F2 Keying surfaces for plaster and other thick coatings. Formed surfaces quality of surface finish: To AS 3610. Type A Categorizes by means of description and illustration various classes of surface finish of concrete obtained off-the-form, by exposed aggregate and on floors, Concrete in its green form can be molded into any shape, size, and finish with the help of The most basic type of concrete finish is a smooth surface created through the use of Standard Specifications of Hollow and Solid Concrete Blocks tion of concrete finishes. e. 424 Precast Concrete Struc-tural Members (Fabrication) 3 surface finish. 4 defines three classes of surface regularity: SR1, SR 2 and SR 3, though the deviations differ from Precast Finishes. 14 formed surface finish 10 15. 9 Colour control The limitation of tonal range of cast in situ concrete and precast concrete. 03 Surface drainage 21 1. Your question could also be related to accessibility issues, so you should refer to the accessible design standards associated with the Americans with Disabilities Act (ADA). Provide this finish for surfaces which are permanently exposed to view but the concrete surface. These bumps, of varying size, appear at a time when bubbles of entrapped air or water rising through the plastic concrete get trapped under an already sealed, airtight surface. 2—Placement of concrete 5. • The “plain” is intended to be suitable as an exposed finish almost “as struck”, but not a super quality A float compacts the concrete surface, giving it a smooth look. 6, 0. 2. been repeated at times for clarity. chloride deicing salts on concrete with inadequate strength, air entrainment, or curing. Do not apply coatings when weather conditions will be detrimental to the final surface finish as determined by the Engineer. These references, which exclude uniform appearance criteria or a process for evaluating formed concrete surfaces, Aug 12, 2019 · Concrete should be thoroughly compacted and the formed surface should be free from major inherent blemishes and honeycombing. Since a coarse-textured surface is needed for bond, the concrete should be cast against rough-faced (S1S2E) form boards. (surface sparkles – for side-. ID No. The CSA A23. com WSDOT Standard Concrete Finishes with Premanufactured Form Liners Fractured Fin Finish Fractured Granite Finish Random Board Finish (¾”) Random Board Finish (Variable Depth) Ribbed Finish Striated Finish Ashlar Stone Finish Block Finish Split Face Finish River Rock Finish Fractured Basalt Finish Cascadian Stone Finish Nov 06, 2005 · 5. Troweling while the bleed water is still on the surface forces water back into the surface layer of the concrete. CSP 2. This section provides basic information on finishing options. Round wooden disc (Ø 50 mm, thickness 10 mm) Test: Defined volume of quartz sand (I. 5μm (256μin) Sm = 135μm. 4 Finishes and fitments This chapter gives guidance on meeting the Technical Requirements for finishings and fitments (including cupboards and internal trim). concrete finishes for formed and unformed surfaces • For formed surfaces the definitions are developments of the BS 8110 descriptions for Types A and B and NBS descriptions of plain smooth and fine smooth finishes. Troweling shall begin after surface has received a float finish. In the United States, surface finish is usually specified using the ASME Y14. Screeding or strikeoff is the process of cutting off excess concrete to bring the top surface of the slab to proper grade. Shot-blast cleaning is also suitable for the cleaning of horizontal steel and asphalt surfaces. 25 cm³) is to be placed onto the surface and distributed in a circling manner until the troughs are filled. Find the most up-to-date version of NO. May 05, 2020 · The surface profile left by the device could be too rough if the blasted floor is to be coated with only a thin paint or varnish coating. It can feel like walking on the bottom of a creek bed, but that can work for or against you. Chemical Stain. 6—Curing and protection 5. This New Zealand Standard classifies concrete finishes for off-the-form surfaces, exposed aggregate surfaces and floors, exterior pavements and inverts. Aggregate:. Nov 02, 2015 · For all other situations requiring the highest quality architectural off-form concrete surface finish, Class 2 should be specified. The majority of concrete produced in Ontario has specification requirements that are governed by the Ontario Building Code and CSA A23. This easy-to-use guide explains and illustrates the answers to these questions and, even more importantly, serves as the standard for the differences between as-cast structural concrete finishes. A brushed finish is obtained by pulling a brush over the surface of the fresh concrete, after the surface has been levelled. Polished concrete is the highest category of steps of processed concrete. 3); 5) The ASCC Education and Training Committee (1999) guide uses samples of concrete surfaces to illustrate appear-ance expectations. The standards limit changes in level and openings in floor and ground surfaces, but they do not further address overall surface smoothness. There Are a Few Different Concrete Finishes Available for You to Choose From Application, budget and personal taste determines which concrete finish is perfect for your concrete project In a moment you become aware as to the four basic types of concrete finishes – Slick Finished Concrete, Broom Finished Concrete, Exposed Aggregate Concrete and Stamped […] The trowel shall be applied with considerable pressure and when completed, the surface of Types 1, 5, water sheen disappears, and when it will support the and 6 finishes shall be free of chatter marks and shall weight of a man and a power float. Silicon Carbide. This specification is the culmination of a major effort and input by members of various committees related to the industries of concrete and surface metrology from ASME, ASTM, ACI and CSDA. 04 Retaining walls 21 1. The finish coat is applied from the top down and the whole wall surface must be covered without joinings (laps or interruptions). 1 General . Protect raked Surface finish is defined in BS EN 13670(4) and this Standard is adopted by NSCS 4th Edition(5) for concrete construction. related to the concrete floor or pavement surface surface finish, texture and applied sealer (if present) (simulated standard shoe sole) rubber are given. 4. The current New Zealand standard NZS 3114 requires that concrete floor A U3 “Trowelled” finish is the most regularly specified finish in New Zealand for a 16 Apr 2010 NZS 3109:1997 Concrete construction and NZS 3114:1987 Specification for concrete surface finishes, available from Standards New Zealand. Some concrete finishes give a special, decorative texture to the concrete surface. Concrete to receive membrane waterproofing shall receive a "smooth form finish" in accordance with ACI 301. 03 BRUSHED FINISH 6. Trowel concrete surface to smooth dense finish. 1 General 10-1 10. 02 FINISHING OF FORMED SURFACES A. There are many concrete surface finish specifications that can be specified, for example; BS EN 13670 Execution of concrete structures – Basic, Ordinary, Plain and Special; National Structural Concrete Specification (NSCS) – Basic, Ordinary, Plain and Special To set an industry standard that supports polishing contractors . This is known as a light shotblast. 2 As-Cast Formed Surface Finishes. 11 – Formwork for concrete This Standard deals with the visual quality (appearance) of formed concrete surfaces, for both in-situ and precast concrete elements. Surface Preparation Commentary (not a consensus standard) March 2015, ed. The first five sections cover materials and proportioning of concrete; reinforcement and prestressing steel; production, placing, finishing, and curing of concrete; formwork performance criteria and construction; treatment of joints; embedded . There is no requirement for consistency of colour for the struck surface. There are four types of surface finish 15 Apr 2007 Special architectural finishes for formed concrete surfaces shall conform to applicable requirements of ACI 301. roughness,surface finish,surface texture Created Date: 00000101000000Z Oct 08, 2020 · Immediately level and prepare further using a bull float. The application of the standard permits appropriate qualities of finish to be assigned to all surfaces, and attention is drawn to specific requirements. 17 Oct 2019 Brush finished concrete is a type of floor finish, which involves pushing or Standard brushes that are readily available and normally used for given in this standard are concerned only with the selection of floor finishes, and their behaviour For industrial floors cement concrete is used for awide. 2, or 3. Due to the greater exposure caused by sand-blasting, water runoff is channeled more evenly and weathering is reduced. (some say roughness) of the surface of your concrete floor. with tight concrete cover; for example, two layers of No. This finish is typically limited to indoor use and provides a lovely glossy look. Concrete Finish: Concrete finish floors shall have a [ hard steel troweled finish; light broom finish ] unless indicated otherwise on the drawings. Mile High Flood District - Protecting People, Property, & Our All concrete surfaces shall have a Class 2 finish unless designated as a Class 1 finish. (B)Strength depends on application and cure. Immediately after all the bleed water is gone is the proper time to: (1) broom or float the surface once; (2) if hand tooled, cut control joints while the Specification for Bridge Construction Section 4, Cast-In-Place Concrete 4 - 2 4. This include: - insitu concrete paving - Pi1 cast insitu flush concrete strip / historical interpretation 1. The specifications contain detailed methods and practices for preparing surfaces. F5 Structural surfaces of importance. Sealing of joints in liquid-containing structures and elsewhere shown. 3. Surface Reflectance Material; Ceilings: 0. Immediately after concrete has been placed in forms, concrete finishers utilize a screed to level out the concrete surface. 9 Honed or Polished Finish. The placards identified as CSP1-CSP9 are also used to inspect prepared surfaces according to the ICRI Technical Guideline No. The succinct, yet thorough, text includes a glossary and a handy table on as-cast finishes. Standard concrete can have the familiar The choice of finish should never be left to the supplier, or the specification loosely worded, such as “Type 304 with a 180 grit finish”. The fixing point cannot be less than five times the diameter of the fastener from the edge of the timber plate, which equates to 25 mm for a 5 mm diameter nail and 50. 3—Finishing formed surfaces 5. 2:1987 In-situ floor finishes – Code of practice for concrete wearing and ACI (American Concrete Institute) 117-1990 Standard tolerances for concrete Standard test methods . DATE: May 2004 ACI 302. Vintage Grey. The surface finish quality is specified as one of five classes. This finish is for surfaces against which back fill or further concrete will be placed. 9 Surface finishes 50 117 P1. 21. Plywood, metal, or other approved panel materials. For coating applications from 15–50 mils in thickness, the surface profile shall be a CSP 4 or 5. Note that ASTM D4417 and SSPC-PA 17 also address measurement of surface profile generated by impact-type power tools. good quality off-form concrete finishes. requirements for cast-in-place concrete finishing. A typical concrete floor has a grey color. S Department of Interior Bureau of Reclamation. 46. It comprises the small, local deviations of a surface from the perfectly flat ideal (a true plane ). The bars closest to the top surface can create waves in the fresh concrete during strikeoff and finishing, thus decreasing F-numbers. 1 Specification for Masonry Structures and Commentary Surface finish specification. After the rock salt has made tiny pits all over the surface of the concrete, it’s washed away, leaving behind a finely textured, slip-resistant surface. concrete surface finishes standards
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