应用于粉砂土的土壤固化剂性能及机理分析

The function and mechanism analysis of soil solidified agent applied to powder-sand soil

粉砂土颗粒间联结强度低,粘聚力差,不易固化。采用水泥熟料、粉煤灰、矿渣、石灰、石膏和激发剂混合研磨而成复合土壤固化剂,综合发挥各固化材料的优势,达到了较好固化效果。结合粉砂土性质和固化剂各原材料的性能特点,分析其固化原理。结论是:粉砂土的固化主要由复合固化材料的胶凝和填充作用形成。

between the particles of powder-sand soil, the binding strength and cohesive force is not good, difficult to solidify. The better effect of solidifying was achieved by mixing cement chamotte, coal ash,slag,lime, gypsum with soil solidified agent, because the composite soil and soil solidified brought the comprehensive advantages.According to properties of powder-sand soil and the every component of solidified agent,the solidification principle was analyzed.The conclusion is that the solidifying of powder-sand soil is mainly by silting and gelatinization of complex solidified agent.