摘要
工程中常用7 d无侧限抗压强度值作为评判化学改良土性能的关键性指标,但是化学改良土的强度增长龄期比较长,有可能7 d时并未达到强度最大值。对比不同掺入量的水泥改良土与生石灰改良土的28 d和7 d无侧限抗压强度,分析表明化学改良剂不同、改良剂掺入量不同对化学改良土的强度增长速度、幅度都有较大的影响。
The unconfined compressive strength is the key index to evaluate the properties for chemical-improved soil.The 7d unconfined compressive strength is always been used as criterion in engineering,but the strength increasing age of the chemical-improved soil is relative longer.The 28d unconfined compressive strength and 7d unconfined compressive strength of lime-improved soil and cement-improved soil are compared in this paper.The result shows that the kinds and the blending-ratio of the chemical amendment effect the strength increasing rate and range greatly.
出处
《土工基础》
2010年第3期84-87,共4页
Soil Engineering and Foundation
关键词
化学改良土
无侧限抗压强度
龄期
chemical-improved soil
unconfined compressive strength
age
