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本文针对我国西北地区盐渍土特性,提出以石灰,粉煤灰及水泥等无机结合料做为改良剂,以改变盐渍土的工程力学性能。本文通过对石灰、石灰加粉煤灰(以下简称“二灰”)、石灰加粉煤灰加水泥(以下简称“三灰”)3种基本改良方法的力学试验及耐久性试验,论证了无机结合料改良盐渍土路基的适用性。改良试验研究结果显示,无机结合料中三灰改良盐渍土具有优良的力学性能和耐久性。
In this paper, according to the characteristics of saline soil in northwestern China, lime, fly ash and cement were chosen as modifiers to change the mechanical properties of saline soil. In this paper, three kinds of basic improvement methods of lime, lime and fly ash (hereinafter referred to as “lime”), lime and fly ash plus cement (hereinafter referred to as “three gray”) mechanical test and durability test , Demonstrated the suitability of inorganic binder to improve saline soil subgrade. The results of the improved experimental study show that the sodic ash modified saline soil with inorganic binder has excellent mechanical properties and durability.