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ASTM C856: Used for hardened concrete investigations ASTM C856 is the standard practice for petrographic examination of hardened concrete.

ASTM C295: Used to evaluate aggregates before use or during failure investigations. ASTM C295 is the standard guide for petrographic examination of aggregates for concrete.

ASTM C1324: Used for mortar analysis. ASTM C1324 is the standard test method for examination and analysis of hardened masonry mortar.