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mortar cement block specimen substrates for ASTM C719 Hockman Cycle Test

ASTM C719 Hockman Cycle Test Specimens

Mortar, metal and glass test specimens (also called substrates) used in ASTM C719 (Adhesion and Cohesion of Elastomeric Joint Sealants Under Cyclic Movement - Hockman Cycle). The test specimens or test plates are 1" x 3" x 1/4" and may be made from clear float glass or from 6061-T6 aluminum anodized in accordance with AA-M10C22A31 (medium matte clear coating 0.4 - 0.7 mil thick). This test also uses mortar (also called cement) block specimens that are 1" x 1" x 3". ASTM C719 uses three test specimen assemblies for each sealant being tested. Customized test specimens are available on request.

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