有机硅材料作用下路基土体毛细水上升试验研究

Experimental study on capillary water rise of subgrade soil under the action of organic silicon materials

通过竖管法进行室内毛细水上升试验,研究在有机硅疏水材料作用下土体对毛细水上升的影响。试验表明在有机硅疏水材料用量100 g/m^(2)、作用时间24 h情况下毛细水上升受到较明显的抑制作用,在作用有机硅疏水材料位置以上的土体含水率的增加率较素土的降幅在50%以上。

The vertical pipe method is used to conduct indoor capillary water rise test to study the influence of soil on the capillary water rise under the action of organic silicon hydrophobic materials.The test shows that when the amount of the silicone hydrophobic material is 100 g/m^(2) and the action time is 24 h,the soil has a relatively obvious inhibitory effect on the rise of capillary water.For the soil above the position where the organosilicon hydrophobic material is applied,the increase rate of its moisture content is more than 50%lower than that of plain soil.