偏高岭土对水泥土应力-应变特性影响分析

为了研究山西偏高岭土对水泥土应力-应变曲线的影响,采用无侧限抗压强度试验对不同偏高岭土掺量、不同龄期水泥土的应力-应变特征影响规律进行分析。试验结果表明:随着偏高岭土掺量的增加,水泥土峰值应力先增加后减小,当掺量为3%时,峰值应力达到最大;随着抗压强度的增加,极限应变总体呈减小趋势,变形模量呈线性增加。

Effect of metakaolin on Stress-Strain characteristics of cemented soil

In order to investigated the impact of the stress-strain curve for cemented soil reinforced by metakaolin from Shanxi province, a series analysis about unconfined compressive strength for cemented soil containing different contents of metakaolin and different ages were conducted. The test results show that the peak stress increases firstly, and then decreases with the increment of metakaolin content. When metakaolin content is 3%, the peak stress reaches the maximum. Along with the increase of compressive strength, the ultimate strain decreases in general and Deformation modulus increased linearly.