Standard Method of Test for
Determining Expansive Soils
AASHTO Designation: T 258-81 (2004)
SCOPE
1.1. This standard covers a method to determine if a soil is expansive and methods to predict the amount of swell.
Note 1-Methods that are being used by various agencies to control the amount of swell are given in the appendix.
2.REFERENCED DOCUMENTS
2.1. AASHTO Standards:
T 87, Dry Preparation of Disturbed Soil and Soil-Aggregate Samples for Test
T 89, Determining the Liquid Limit of Soils
T 90, Determining the Plastic Limit and Plasticity Index of Soils
T 99, Moisture-Density Relations of Soils Using a 2.5-kg (5.5-lb) Rammer and a 305-mrn (12-in.) Drop
T 100, Specific Gravity of Soils
T 216, One-Dimensional Consolidation Properties of Soils
T 273, Soil Suction
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