Abstract: The data from the determination of cation exchange capacity and montmorilloni te contents in expansive soils have been used in evaluation and classification of expansive soils according to occupation standard of TB 10042-9 5.

• 文摘:应用对膨胀土勘测样的蒙脱石含量和阳离子交换量测定数据，按行业标准对膨胀土进行了评判和分级。