Nanoclay Performance on Resistance of Clay under Freezing Cycles

Journal of Applied Sciences and Environmental Management

SHARIFIPOUR, MOHAMMAD¹  BAYAT, RAMIN¹  ZAHEDI, MOHSEN¹  JAHANBAKHSHI, FARZAD¹ 

关键词: Nanoclay;    Resistance;    Freezing;    Sample;    Uniaxial;   

DOI  :  

学科分类：环境科学（综合）

来源: University of Port Harcourt * Department of Pure and Industrial Chemistry

【 摘 要 】

This study aims to investigate effect of nanoclay on resistance of the exposedclay soils in freezing in vitro conditions. The clay sample was selected from the consideredland. Then they were mixed on water in 1.5, 3, 4.5 and 6 percents as well as withoutnanoclay. There were prepared cylinders with 3.81 cm diameter and 7.62 cm height, whichthey have been placed in conditions without freezing, one cycle, two cycles and three cyclesof freezing. Then they were tested under uniaxial experiment. Then they were analyzed bySPSS software. The results show that adding nanoclay with 1.5, 3, 4.5 and 6 percents willreduce soil strength during freezing cycles. It can be occurred because adding nanoclay willresult to increase special surface of the samples; consequently, increasing electrical loadincreases water absorption, which it can be partly cause of non-effective increasing nanoclayin soil resistance. There is also a significant difference between pressure strength of soils withlower humidity and those with higher humidity. It confirms that increasing humiditydecreases strength level, which increasing water absorption of samples by nanoclay is reasonof decreasing strength. There is an inverse significant relationship between increasing nanoand soil water absorption, which its reason may be that adding nanoclay because of increasingsamples special surface and consequently, increasing electricity load will increase waterabsorption and samples’ plasticity. It can be expected that samples’ permeability will declineby increasing their plasticity. There is also a significant relationship between increasing nanoand soil liquid and doughiness limit that its reason can be increasing rate of water absorptionin samples due to presence of nanoclay.

【 授权许可】

Unknown