Effect of water absorption on the mechanical properties of cotton fabric-reinforced geopolymer composites

被引：202

作者：

Alomayri, T. ^{[1
,2
]}

Assaedi, H. ^{[1
,2
]}

Shaikh, F. U. A. ^{[3
]}

Low, I. M. ^{[1
]}

机构：

[1] Curtin Univ, Dept Imaging & Appl Phys, GPO Box U1987, Perth, WA 6845, Australia

[2] Umm Al Qura Univ, Dept Phys, Mecca 21955, Saudi Arabia

[3] Curtin Univ, Dept Civil Engn, Perth, WA 6845, Australia

来源：

JOURNAL OF ASIAN CERAMIC SOCIETIES | 2014年 / 2卷 / 03期

关键词：

Geopolymer composites; Microstructures; Mechanical properties; Water absorption;

D O I：

10.1016/j.jascer.2014.05.005

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Cotton fabric (CF) reinforced geopolymer composites are fabricated with fibre loadings of 4.5, 6.2 and 8.3 wt%. Results show that flexural strength, flexural modulus, impact strength, hardness and fracture toughness are increased as the fibre content increased. The ultimate mechanical properties were achieved with a fibre content of 8.3 wt%. The effect of water absorption on mechanical and physical properties of CF reinforced geopolymer composites is also investigated. The magnitude of maximum water uptake and diffusion coefficient is increased with an increase in fibre content. Flexural strength, modulus, impact strength, hardness and fracture toughness values are decreased as a result of water absorption. Scanning electron microscopy (SEM) is used to characterise the microstructure and failure mechanisms of dry and wet cotton fibre reinforced geopolymer composites. Crown Copyright (C) 2014 Production and hosting by Elsevier B.V. on behalf of The Ceramic Society of Japan and the Korean Ceramic Society. All rights reserved.

引用

页码：223 / 230

页数：8

共 43 条

[1] Mechanical, thermal and microstructural characteristics of cellulose fibre reinforced epoxy/organoclay nanocomposites [J].