What are the purposes of C136 regarding aggregate analysis?

The purpose of C136, which pertains to the sieve analysis of fine and coarse aggregates, primarily focuses on determining the grading and compliance of particle size distribution. This standard provides procedures for analyzing the distribution of particle sizes, which is essential for ensuring that aggregates meet specific requirements for various applications in concrete and asphalt mixtures. Proper grading affects workability, strength, and the overall performance of concrete.

Additionally, the results derived from C136 are crucial for quality control processes in construction, enabling engineers and quality control technicians to ascertain that the aggregates used in concrete mixes conform to the project specifications, which ultimately influences the durability and mechanical properties of the finished product.

The other choices reference aspects that, while related to aggregate analysis, do not accurately encapsulate the core purposes of C136. For instance, assessing workability, density, and moisture content are important but do not specifically pertain to the sieve analysis defined by this standard. Therefore, the accurate identification of grading and particle size distribution compliance, along with the implication for quality control, distinctly aligns with the objectives of C136.