ASTM C 33 (Specification for Concrete Aggregate)

ASTM C 33 is a standardized guideline that outlines the quality and grading requirements for aggregates used in concrete. Aggregates are the materials, like sand and gravel, mixed with cement to make concrete. This specification ensures that the aggregates used are clean, well-graded, and free from harmful substances so that the concrete is strong and durable. It helps builders, engineers, and contractors select the right materials to create safe and reliable structures, ensuring consistent performance and longevity of the concrete used in construction projects.