ASTM D 1883. A exam to find out the aptitude of the soil or aggregate sample to be a road subgrade. A plunger is pushed into a compacted sample, and its resistance is calculated. ASTM D2166. This test compresses a soil sample to evaluate its strength. The modifier “unconfined” https://software-automatic77665.actoblog.com/30129512/5-simple-statements-about-soil-testing-and-investigation-bd-explained