Petrographic Examination of Aggregates for Concrete

Petrographic examination of aggregates for concrete, mortars, and building stones can help determine if the concrete cured correctly, or if there is evidence of degradation. Concrete and aggregate testing provides construction staff valuable information during a project including concrete mix, air content, weight and strengths of concrete. The Petrographic Examination of Aggregates for Concrete follows guidelines for a petrographic microscope that meets ASTM C295, ASTM C457M and ASTM C856 standards.