A Improved Experimental Study On New Soiltreatment Agent For Expansive Soil

Expansive soil is a special clay, because it has the over consolidation, m any cracks, water swelling, shrinkage and cracking and other special engineer ing properties of expansive soil area,therefore, for the destruction of the b uilding is often accompanied by long‐term repeated phenomenon and the en ormous destructive soil moisture changes.New soil treatment agent, has the properties of the hydration resistanc e of good, the use of this feature, study the New soil treatment agent effec t on resistance of expansive soil from the point of view of free swelling rati o and load angle, with no swelling test, direct shear test, no test and SEM sca nning electron microscope test compression side limit, determine the New s oil treatment agent effect improving agent for improved engineering property of expansive soil treatment.Test results show:1. With add ratio for New soil treatment agent 2%, 5%, 15% of the tre atment agent, can make the low middle, high expansion of expansive soil is reduced to non expansive respectively.2.New soil treatment agent can improve the soil to improve the shear strength and maximum dry density, compressive strength, improve the comp actness of the soil.3. With the use of new soil treatment agent quantity increase, the tren d has promoted for the treatment effect of expansive soil.New soil treated expansive soil can improve the engineering index, ther efore, new soil treatment project governance agent used in expansive soil is f easible.