固化剂与低剂量石灰综合稳定土的应用研究

为考察固化剂和低剂量石灰综合稳定土的效果,选择了5种有代表性的土质,采用3种低石灰剂量,拟定了15组配比进行研究.结果表明,固化剂和低剂量石灰对黏性土具有较好的稳定效果,而对粉质土稳定作用小;不同的黏性土其获得的强度不同.由回归分析发现,各龄期稳定土的无侧限抗压强度与土的阳离子交换量之间具有很强的线性关系,阳离子交换量越大,稳定土的无侧限抗压强度越高.与相应剂量的石灰土或固化土相比,固化剂与低剂量石灰综合稳定土的抗渗性能和收缩性能都占明显优势,且其抗冻性能良好.通过试验比较发现,覆盖养生比喷洒固化剂溶液养生的效果好.

Application Research on Soil Stabilized with Firming Agent and Low Dosage Lime

In order to investigate the effect of firming agent and low dosage of lime on stability of soil five kinds of representative soil and three small dosages of slaked lime were selected to form fifteen mixture compositions with same dosage of firming agent.Test results show that firming agent and low dosage of slaked lime have a positive effect on stabilization of clay,but a little impact on silt,and the strengths of stabilized clay are different for different clays.There is a good linear correlation between t...