水泥-石灰土的路用性能研究

Study on the Performance of Cement-Lime Stabilized Soil for Road Subgrade

针对上海地区湿软粘土的路基条件和多雨的气候特征 ,提出采用水泥 石灰综合处治路基的技术措施 ,并对水泥 石灰土的路用性能进行了室内试验与现场测试研究 .结果表明 ,与石灰土相比 ,水泥 石灰土的早期强度和模量较高 ,后期强度和模量增长缓慢 ,增幅也较小 ;水泥 石灰土的强度与模量均能充分满足高等级道面的设计要求 ,且受含水量的影响较小 .因此 ,采用水泥 石灰土对于雨季施工和缩短工期具有重要意义 .

In accordance with the road subgrade condition and the climatic characteristics in Shanghai area, cement-lime soil stabilization was proposed to strengthen the subgrade soil. In this paper, the performance of cement-lime stabilized soil was studied by means of experimental road tests. It is shown that strength, modulus and water-stability of cement-lime stabilized soil may fully meet the needs of high-grade pavements.