ASTM-D8337/D8337M 2021

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D8337/D8337M-21 Standard Test Method for Evaluation of Bond Properties of FRP Composite Applied to Concrete Substrate using Single-Lap Shear Test

Published By	Publication Date	Number of Pages
ASTM	2021

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Categories: 59.100.01 - Materials for the reinforcement of composites in general, ASTM

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Description

ASTM D8337/D8337M-21

Active Standard: Standard Test Method for Evaluation of Bond Properties of FRP Composite Applied to Concrete Substrate using Single-Lap Shear Test

ASTM D8337/D8337M

Scope

1.1 This test method describes the apparatus and procedure to evaluate the lap shear bond properties of wet lay-up or shop-fabricated (for example, pultruded) fiber-reinforced polymer (FRP) composite systems adhesively applied to a flat concrete substrate. The test determines the plateau force that an FRP system can bear before complete debonding from a concrete prism tested using a direct single-lap shear test. This plateau force is reported as bond capacity and may be different from the maximum applied force. The plateau force is then used to determine the interfacial fracture energy and the cohesive material law.

1.2 This test method is not intended for job approval or for product qualification purposes unless an external agency adopts 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 use with FRP systems having any ﬁber orientation or combination of ply orientations comprising the FRP composite, although the test condition only considers forces in the direction parallel to the prism longitudinal axis.

1.4 Units—The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined.

1.4.1 Within the text, the inch-pound units are shown in brackets.

1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

Keywords

bond; composite materials; pultruded (shop-fabricated) FRP composite; single-lap shear test; wet lay-up FRP composite;

ICS Code

ICS Number Code 59.100.01 (Materials for the reinforcement of composites in general)

DOI: 10.1520/D8337_D8337M-21

Additional information

Standard Title	D8337/D8337M-21 Standard Test Method for Evaluation of Bond Properties of FRP Composite Applied to Concrete Substrate using Single-Lap Shear Test
Published Code	ASTM
Publication Date	2021
ICS Codes	59.100.01 - Materials for the reinforcement of composites in general