水泥红粘土抗冻性的试验研究  

Experimental Study on Frost-resistance of Red Clay Cemented Soil

作　　者：赵振亚[1] 申向东[1] 宋小园[1] 

机构地区：[1]内蒙古农业大学,呼和浩特010018

出　　处：《硅酸盐通报》2012年第3期702-705,710,共5页Bulletin of the Chinese Ceramic Society

基　　金：国家自然科学基金项目(No.51069008);内蒙古自治区高等学校科学研究项目(NJ09046)

摘　　要：本文模拟了对具有一定掺量水泥土进行了室内冻融循环试验,测试了不同水泥掺量的水泥土在不同冻融循环次数下的无侧限抗压强度,以及掺加Ca(OH)2的情况下水泥土的无侧限抗压强度。分析了在冻融循环条件下,不同水泥掺量及掺加Ca(OH)2对水泥红粘土的抗冻性能的影响。结果表明:经过冻融循环后,对于未经Ca(OH)2改良的水泥红粘土试样,应力-应变曲线峰值明显降低;经Ca(OH)2改良的情况下,应力-应变曲线峰值降低较小。The experiment simulates the indoor freeze-thaw cycles of cemented soil with a certain dosage. It has tested the unconfined compressive strength of cement soil with different dosage of cement under thedifferent times of freeze-thaw cycles. It also tests the unconfined compressive strength of cement soil mixed with Ca（ OH）2. The influence of different dosage of cement and Ca（OH）2 on the frost resistanceof red clay cemented soil is analized. The results shows that freeze-thaw cycles have significantly impact on the mechanical properties of soil-cement. And the frost resistance of red clay cemented soil enhancesobviously after mixing with Ca （OH） 2.

关 键 词：冻融循环 无侧限抗压强度 CA(OH)2 抗冻性 应力-应变关系 

分 类 号：TU41[建筑科学—岩土工程]