The test method consists of placing a soil specimen at natural water content in a consolidometer, applying a predetermined applied vertical stress to the specimen and inundating the specimen with fluid to induce the potential collapse in the soil specimen. The fluid shall be distilled-deionized water when evaluating the collapse index, Ie. The fluid may simulate pore water of the specimen or other field condition as necessary when evaluating collapse potential, Ic.
2.5 in diameter x 1 in in height
collapse; collapse index; collapse potential; compressibility; consolidation