AASHTO T 27-20 PDF Download

AASHTO T 27-20 is a standard method of test that focuses on the determination of the particle size distribution of both fine and coarse aggregates through the process of sieving. The standard is designed to be used for aggregates that are used in construction applications and is often referenced in specifications that require specific grading requirements for both coarse and fine fractions.

The method outlined in this standard provides instructions for conducting a sieve analysis of aggregate samples, allowing for the determination of the proportion of different sized particles within the sample. This information is crucial in assessing the quality and suitability of the aggregates for use in various construction projects.

It is worth noting that while AASHTO T 27-20 is similar to ASTM C 136-06, it is not identical. This distinction is important for ensuring compliance with specific requirements and guidelines depending on the governing body or project specifications. Therefore, it is essential to consult the appropriate method according to the governing standards or specifications when conducting a sieve analysis of fine and coarse aggregates.