Stabilization of residual soil using SiO2 nanoparticles and cement

被引：216

作者：

Bahmani, Sayed Hessam ^{[1
]}

Huat, Bujang B. K. ^{[1
]}

Asadi, Afshin ^{[2
]}

Farzadnia, Nima ^{[2
]}

机构：

[1] Univ Putra Malaysia, Fac Engn, Dept Civil Engn, Serdang 43400, Selangor Darul, Malaysia

[2] Univ Putra Malaysia, Fac Engn, Housing Res Ctr, Serdang 43400, Selangor Darul, Malaysia

来源：

CONSTRUCTION AND BUILDING MATERIALS | 2014年 / 64卷

关键词：

Nanosilica; Cement treated residual soil; Mechanical properties; Chemical; Microstructural properties; HIGH-STRENGTH MORTARS; NANO-SIO2; ASH; BEHAVIOR;

D O I：

10.1016/j.conbuildmat.2014.04.086

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

An experimental study was performed to determine the effect of SiO2 nanoparticles on consistency, compaction, hydraulic conductivity, and compressive strength of cement-treated residual soil. Also, SEM, XRD and FTIR tests were carried out to identify the underlying mechanisms. The addition of nanoparticles was found to advantageously affect the compactability, hydraulic conductivity. Besides, addition of 0.4% nanosilica to the cement treated soil improved the compressive strength by up to 80%. XRD, FTIR and SEM test results showed that silica nanoparticles promoted the pozzolanic reaction by transforming Portlandite into calcium silicate hydrate (C-S-H) gel. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：350 / 359

页数：10

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