ASTM_D_8337_-_D_8337M_-_21.pdf

Designation:D8337/D8337M21Standard Test Method forEvaluation of Bond Properties of FRP Composite Applied toConcrete Substrate using Single-Lap Shear Test1This standard is issued under the fixed designation D8337/D8337M;the number immediately following the designation indicates theyear of original adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of lastreapproval.A superscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This test method describes the apparatus and procedureto evaluate the lap shear bond properties of wet lay-up orshop-fabricated(for example,pultruded)fiber-reinforced poly-mer(FRP)composite systems adhesively applied to a flatconcrete substrate.The test determines the plateau force that anFRP system can bear before complete debonding from aconcrete prism tested using a direct single-lap shear test.Thisplateau force is reported as bond capacity and may be differentfrom the maximum applied force.The plateau force is thenused to determine the interfacial fracture energy and thecohesive material law.1.2 This test method is not intended for job approval or forproduct qualification purposes unless an external agencyadopts the test method for those purposes.1.3 This test method is intended for use with adhesive-applied or wet lay-up FRP systems and is appropriate for usewith FRP systems having any fiber orientation or combinationof ply orientations comprising the FRPcomposite,although thetest condition only considers forces in the direction parallel tothe prism longitudinal axis.1.4 UnitsThe values stated in either SI units or inch-pound units are to be regarded separately as standard.Thevalues stated in each system are not necessarily exact equiva-lents;therefore,to ensure conformance with the standard,eachsystem shall be used independently of the other,and valuesfrom the two systems shall not be combined.1.4.1 Within the text,the inch-pound units are shown inbrackets.1.5 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,health,and environmental practices and deter-mine the applicability of regulatory limitations prior to use.1.6 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2C31/C31M Practice for Making and Curing Concrete TestSpecimens in the FieldC33/C33M Specification for Concrete AggregatesC39/C39M Test Method for Compressive Strength of Cylin-drical Concrete SpecimensC42/C42M Test Method for Obtaining and Testing DrilledCores and Sawed Beams of ConcreteC125 Terminology Relating to Concrete and Concrete Ag-gregatesC150/C150M Specification for Portland CementC192/C192M Practice for Making and Curing Concrete TestSpecimens in the LaboratoryC496/C496M Test Method for Splitting Tensile Strength ofCylindrical Concrete SpecimensC511 Specification for Mixing Rooms,Moist Cabinets,Moist Rooms,and Water Storage Tanks Used in theTesting of Hydraulic Cements and ConcretesC617/C617M Practice for Capping Cylindrical ConcreteSpecimensD883 Terminology Relating to PlasticsD3039/D3039M Test Method for Tensile Properties of Poly-mer Matrix Composite MaterialsD3878 Terminology for Composite MaterialsD5229/D5229M Test Method for MoistureAbsorption Prop-erties and Equilibrium Conditioning of Polymer MatrixComposite MaterialsD7565/D7565M Test Method for Determining Tensile Prop-erties of Fiber Reinforced Polymer Matrix CompositesUsed for Strengthening of Civil StructuresD7958/D7958M Test Method for Evaluation of Performance1This test method is under the jurisdiction of ASTM Committee D30 onComposite Materials and is the direct responsibility of Subcommittee D30.10 onComposites for Civil Structures.Current edition approved Jan.1,2021.Published May 2021.DOI:10.1520/D8337_D8337M-21.2For 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.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.1for FRP Composite Bonded to Concrete Substrate usingBeam TestE4 Practices for Force Verification of Testing MachinesE6 Terminology Relating to Methods of Mechan