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ASTM C617 – Standard Practice for Capping Cylindrical Concrete Specimens


This practice covers apparatus, materials, and procedures for capping freshly molded concrete cylinders with neat cement and hardened cylinders and drilled concrete cores with high-strength gypsum paste or sulfur mortar.


capping; concrete; compressive strength; cores; cylinders; gypsum cement paste; neat hydraulic cement paste; sulfur mortar

ASTM C617 Accredited Laboratory

Applied Testing & Geosciences, LLC is accredited for performing tests using the ASTM C617 standard.

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