ASTM_C_811_-_98_2008.pdf

Designation:C 811 98(Reapproved 2008)Standard Practice forSurface Preparation of Concrete for Application ofChemical-Resistant Resin Monolithic Surfacings1This standard is issued under the fixed designation C 811;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the Department of Defense.1.Scope1.1 This practice provides for the preparation of concrete toreceive resinous monolithic surfacings.In these recommenda-tions,the term monolithic surfacings includes toppings applied60 mils(1.5 mm)in thickness or greater over concrete,whichcure in place,are continuously bonded to the concrete surface,and provide a continuous surfacing.1.2 The surfacings consist of fillers,resins,and hardenerswhich when properly mixed,applied and cured,bond to primedor unprimed concrete.The monolithic surfacings may be eitherreinforced or unreinforced.1.3 This practice does not restrict the method of application.1.4 This practice is intended for use with filled resin systemssuch as those covered by Specification C 722 and is notintended to supersede specific manufacturers instructions.1.5 The values stated in inch-pound units are to be regardedas standard.The values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.1.6 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:2C 722 Specification for Chemical-Resistant MonolithicFloor SurfacingsC 904 Terminology Relating to Chemical-Resistant Non-metallic MaterialsD 4258 Practice for Surface Cleaning Concrete for CoatingD 4259 Practice for Abrading ConcreteD 4260 Practice for Liquid and Gelled Acid Etching ofConcreteD 4262 Test Method for pH of Chemically Cleaned orEtched Concrete SurfacesD 4263 Test Method for Indicating Moisture in Concrete bythe Plastic Sheet MethodD 4285 Test Method for Indicating Oil or Water in Com-pressed Air2.2Other Standards:ACI 308 Recommended Practice for Curing Concrete3ACI 503R-89 Use of Epoxy Compounds with Concrete33.Terminology3.1DefinitionsFor definitions of terms used in thispractice,see Terminology C 904.4.Concrete Requirement4.1 The concrete should be designed to withstand all struc-tural,thermal,mechanical stresses,and loading which willoccur during service.It must remain stable while protected bythe monolithic surfacing and be provided with all necessaryexpansion,construction,control,and isolation joints to allow itto perform.Failure of the substrate to remain stable willinvariably affect the performance of the surfacing.In particular,cracking of the substrate is likely to mirror in the monolithicsurfacing.4.2 Hydrostatic pressure,water vapor gradient,and capil-lary action,or any combination of these,forced against orthrough the concrete may cause adhesion failure between thetopping and the concrete surface.A waterproofing or drainagesystem may be required to address these concerns.4.3 New concrete should be cured in accordance with goodconcrete practice.See ACI-308.4.4 Film forming type curing membranes shall be removedfrom the surface of the concrete unless approved as being1This practice is under the jurisdiction of ASTM Committee C03 on Chemical-Resistant Nonmetallic Materials and is the direct responsibility of SubcommitteeC03.02 on Monolithics,Grouts and Polymer Concretes.Current edition approved June 1,2008.Published July 2008.Originally approvedin 1975.Last previous edition approved in 2003 as C 811-98(2003).2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.3Available from American Concrete Institute(ACI),P.O.Box 9094,FarmingtonHills,MI 48333-9094,http:/www.concrete.org.1Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959,United States.Copyright by ASTM Intl(all rights reserved);Thu Apr 16 07:59:50 EDT 2009Downloaded/printed byLaurentian University pursuant to License Agreement.No further reproductions patible by the surfacing manufacturer.The removal orcompatibility of these materials can be verified by testing inaccordance with 7.3.4.5 In placing concrete floors,after the proper leveling ofthe concrete,it shall be wood float finished,followed by asingle pass metal trowel finish to produce a relatively laitance-free substrate.Lubricants or release agents shall not be used ontools.4.6 Car