The influence of superabsorbent polymers on strength and durability properties of blended cement mortars

被引：118

作者：

Beushausen, H. ^{[1
]}

Gillmer, M. ^{[1
]}

Alexander, M. ^{[1
]}

机构：

[1] Univ Cape Town, Dept Civil Engn, Concrete Mat & Struct Integr Res Unit, ZA-7701 Rondebosch, South Africa

来源：

CEMENT & CONCRETE COMPOSITES | 2014年 / 52卷

基金：

新加坡国家研究基金会;

关键词：

Blended cement mortars; Superabsorbent polymers; Strength development; Durability; Concrete repair; CONCRETE; CORROSION; WATER; RESISTANCE; STEEL;

D O I：

10.1016/j.cemconcomp.2014.03.008

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

The effect of different quantities of admixed superabsorbent polymers (SAP) on durability and strength properties of normal strength mortars containing various binary cement blends was investigated. Addition of SAP did not significantly affect compressive strength, although a slight retardation of strength development was observed in mortars with higher w/b ratio. Tensile strength values were generally slightly improved with the use of SAP. Durability was assessed by measuring porosity, oxygen permeability, chloride conductivity, accelerated carbonation, and bulk diffusion. The generally improved durability properties, especially for mortars containing silica fume, indicates the potential to use SAP to design high quality concrete repair mortars. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：73 / 80

页数：8

共 22 条

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Alexander M. G., 2001, MAT SCI CONCRETE, VVI, P483

[2]

[Anonymous], 20612000 BS EN

[3]

[Anonymous], 2004, C1556 ASTM

[4]

Beushausen H, 2009, CONCR LIF 09 7 9 SEP, P408