SEU-2型固化剂稳定粉质土路基的试验研究

从力学及路用性能的角度出发,进行SEU-2型固化剂和其他材料加固粉质土路基的室内及现场试验研究,以确定加固粉性土路基的合理方案及外加剂掺量,并对其稳定规律进行分析。研究结果表明,掺加SEU-2型固化剂可明显增加粉性土的无侧限抗压强度和水稳性,减小其收缩变形。掺加4%SEU-2型固化剂能满足路基的各项技术指标要求,是最为合理的加固粉性土路基的方案。

Test and Study on Stabilization of Silty Subgrade by SEU-2 Solidifying Agent

From the point of mechanics and usability in road,the tests are conducted on stabilization of silty subgrade by SEU-2 solidifying agent and other solidifying agents in order to determine the reasonable plan and the best percentage of addition agent and to analyze its stabilizing patterns.The test results show that the unconfined compressive strength and the water stability of silty soils are obviously increased and the shrinkage strain of silty soils is decreased.The silty soil stabilized by adding 4% SEU-2 solidifying agent can satisfy all of technical requirements of subgrade.By comparison,it is considered that adding 4% SEU-2 solidifying agent is the most reasonable plan to stabilize silty subgrade.