增强型湿塑性水泥土加固软土地基研究

STUDY ON THE STRENGTH ENHANCEMENT OF HUMID-PLASTIC CEMENT SOILS

从水泥在水泥-水-粘土系统中水化的特点出发,阐述了湿塑性水泥土的强度形成过程。通过试验研究了几种外加剂及矿物添加剂对湿塑性水泥土的增强作用及各种外加剂的适宜添加量,并对外加剂和矿物添加剂对水泥土强度的作用机理进行了讨论。

Based on the application practice of cement soils into the highway engineering, the mechanism of the solidification and strength forming process of the humid-plastic cement soils are studied. The cement-soils are classified for highway engineering and the forming method of the humid-plastic cement-soils is proposed. The strength forming process of humid-plastic cement-soils is expatiated based on the characterization of the cement hydration process in cement-water-clay system. The enhancing effect of the additives and mineral admixtures on the humid-plastic cement soils and the suitable additives dosage are studied. The effect mechanism of the additives and admixtures on the strength forming of humid-plastic cement soils is discussed also.