AASHTO R 58-11 (2019) PDF Download

AASHTO R 58-11 (2019) is a standard practice that outlines the procedure for the dry preparation of disturbed soil and soil-aggregate samples for testing purposes. The standard applies to samples obtained directly from the field and provides guidelines for the preparation of soil samples for mechanical analysis, physical tests, moisture-density relations test, and other tests as required.

The practice emphasizes the importance of properly preparing the soil samples to ensure accurate and reliable test results. The standard provides detailed instructions on the process of drying the samples, including the use of ovens or air-drying methods. It also provides guidance on the proper handling and labeling of the samples to avoid contamination or loss of material during the preparation process.