ASTM C226-19 PDF Download

The ASTM C226-19 standard is focused on air-entraining additions for use in the production of air-entraining hydraulic cement. It provides specifications and test methods for the materials, including cement, aggregates, and reference addition.

The standard establishes grading requirements for fine and coarse aggregates, ensuring the quality and suitability of these materials for use in the cement production process. It also outlines various test methods that need to be conducted on cement samples, such as chemical analysis, determination of addition, fineness, consistency, time of setting, autoclave expansion, air content, compressive strength, and length change.

Furthermore, the standard covers the preparation and testing of plastic and hardened concrete. It specifies the mixing methods, proportions, and weighing for concrete mixture preparation. Test methods for plastic concrete include consistency, unit weight, and air content, while tests for hardened concrete include compressive strength, flexural strength, and resistance to freezing and thawing.