AASHTO T 85-14 (2018) PDF Download

AASHTO T 85-14 (2018) is a standard method of testing the specific gravity and absorption of coarse aggregate. It provides guidelines on how to determine the specific gravity of coarse aggregate, which can be expressed in different ways such as bulk specific gravity, bulk specific gravity (SSD), or apparent specific gravity. The bulk specific gravity (SSD) and absorption values are obtained after soaking the aggregate in water for a specific duration of time, typically 15-19 hours. It is important to note that this method is not applicable for lightweight aggregates. Furthermore, this method is recognized as being equivalent to ASTM C 127-12, ensuring consistency and compatibility with other industry standards.