AASHTO T 217-14 (2018) PDF Download

The AASHTO T 217-14 (2018) standard is a method of test used to determine the moisture content of soils using a calcium carbide gas pressure moisture tester. This equipment utilizes the reaction between calcium carbide and moisture to generate gas pressure, which is then used to calculate the moisture content of the soil sample.

It is important to note that the instructions provided by the equipment manufacturer should be strictly followed to ensure accurate and reliable results. This standard also specifies that the method should not be used on granular materials with particles that are too large, typically those retained on a 4.75-mm sieve. This limitation is applicable for soils only, and not for testing aggregates, which can be tested using a different apparatus called the super 200 D tester.