AASHTO T 225-16 (2020) PDF Download

AASHTO T 225-16 (2020) is a standard method of test for diamond core drilling for site investigation. This method is specifically designed to obtain intact samples of rock and hard soils that cannot be easily sampled using traditional soil sampling methods. The primary purpose of this method is to gather data for foundation and slope design, as well as other civil engineering purposes. It should be noted that this method is not intended for mineral development and mining projects. The standard provides guidelines and procedures for conducting diamond core drilling, ensuring accurate and reliable data collection for site investigation purposes.