Abstract
The air-cement treated soil (ACS) is one of the typical lightweight geomaterials, which has a few merits as making good use of waste soil or countermeasure for soft ground. The evaluation method of the ACS has not been generalized because of the variety of the factor to fix its property. Unconfined compression strength was selected out as an index to evaluate the ACS in this study.
As a result, it was shown the unconfined compression strength of the ACS decreased exponentially against the void ratio. Then, using a relationship of the two indices we found the following fact. Namely, cement ratio in the high level, curing term exceeded 56 days and mixing method gave less effect. Confining pressure when the ACS was fresh, however, gave a great influence to the unconfined compression strength.
