ASTM_C_882_-_C_882M_-_13a.pdf

Designation:C882/C882M13aStandard Test Method forBond Strength of Epoxy-Resin Systems Used With ConcreteBy Slant Shear1This standard is issued under the fixed designation C882/C882M;the number immediately following the designation indicates the yearof original adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.A superscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope*1.1 This test method covers the determination of the bondstrength of epoxy-resin-base bonding systems for use withportland-cement concrete.This test method covers bondinghardened concrete to hardened or freshly-mixed concrete.1.2 The values stated in either SI units or inch-pound unitsare to be regarded separately as standard.The values stated ineach system may not be exact equivalents;therefore,eachsystem shall be used independently of the other.Combiningvalues from the two systems may result in non-conformancewith the standard.1.3 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.A specific hazardstatement is given in Section 8.(Warning Fresh hydrauliccementitious mixtures are caustic and may cause chemicalburns to exposed skin and tissue upon prolonged exposure.2)2.Referenced Documents2.1 ASTM Standards:3C39/C39M Test Method for Compressive Strength of Cylin-drical Concrete SpecimensC109/C109M Test Method for Compressive Strength ofHydraulic Cement Mortars(Using 2-in.or 50-mm CubeSpecimens)C125 Terminology Relating to Concrete and Concrete Ag-gregatesC150 Specification for Portland CementC192/C192M Practice for Making and Curing Concrete TestSpecimens in the LaboratoryC470/C470M Specification for Molds for Forming ConcreteTest Cylinders VerticallyC511 Specification for Mixing Rooms,Moist Cabinets,Moist Rooms,and Water Storage Tanks Used in theTesting of Hydraulic Cements and ConcretesC617 Practice for Capping Cylindrical Concrete SpecimensC881/C881M Specification for Epoxy-Resin-Base BondingSystems for Concrete3.Terminology3.1 Definitions:3.1.1 For definitions of terms used in this specification,referto Terminology C125.3.2 Definitions of Terms Specific to This Standard:3.2.1 bonding system,nthe product resulting from thecombination of all the components supplied for use as abonding material.3.2.2 component,na constituent that is intended to becombined with one or more other constituents to form abonding system.3.2.3 contact strength,nbond strength measured by slantshear after a specified contact and cure time.3.2.4 contact time,nspecified time between when thebonding system is applied and when the two segments arebonded together and still achieve a specified bond strengthafter a specified curing time and temperature.3.2.5 formulator,nthe agency responsible for preparingthe separate components and for recommending the propor-tions to be used in preparing the final bonding system.4.Summary of Test Method4.1 The bond strength is determined by using the epoxysystem to bond together two equal sections of a 75 by 150-mm3 by 6-in.portland-cement mortar cylinder,each section ofwhich has a diagonally cast bonding area at a 30 angle fromvertical.After suitable curing of the bonding agent,the test isperformed by determining the compressive strength of thecomposite cylinder.1This test method is under the jurisdiction of ASTM Committee C09 onConcrete and Concrete Aggregatesand is the direct responsibility of SubcommitteeC09.25 on Organic Materials for Bonding.Current edition approved Dec.1,2013.Published December 2013.Originallyapproved in 1978.Last previous edition approved in 2013 as C882/C882M13.DOI:10.1520/C0882_C0882M-13a.2See Section on Safety Precautions,Manual of Aggregate and Concrete Testing,Annual Book of ASTM Standards,Vol.04.02.3For 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.*A Summary of Changes section appears at the end of this standardCopyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 5.Significance and Use5.1 The strength developed by a bonding system that joinstwo regions of concrete is its most important property.6.Apparatus6.1 Apparatus to Mix Portland-Cement MortarThis appa-ratus shall be as described in Test Method C109/C109M,except for the sections on specimen molds,tamper,and testingmachine.6.2 Specimen MoldsThe molds shall meet the require-ments of Specification C470/C470M and be 75 6 2 mm 3 6116in.in inside diameter and 150 6 2 mm 6 6116in.inheight.6.3 Dummy SectionA dummy section(Fig.1)shall bemachined of a hard material that is not attacked by portl