AASHTO T290

Standard Method of Test for Determining Water-Soluble Sulfate Ion Content in Soil

Applicability: AASHTO T290 is a standard test method used to determine the water-soluble sulfate ion content in soil. This test is crucial for assessing the potential for sulfate-related damage to concrete structures, particularly in soil and water environments.

Purpose: The primary purpose of AASHTO T290 is to quantify the amount of sulfate ions present in a soil sample that are soluble in water. Sulfates in soil can react with concrete, causing expansion, cracking, and deterioration of structures like foundations and pavements.