Effect of ground bagasse ash on mechanical and durability properties of recycled aggregate concrete

被引：121

作者：

Somna, Rattapon ^{[1
]}

Jaturapitakkul, Chai ^{[1
]}

Rattanachu, Pokpong ^{[1
,2
]}

Chalee, Wichian ^{[2
]}

机构：

[1] King Mongkuts Univ Technol Thonburi, Dept Civil Engn, Fac Engn, Bangkok 10140, Thailand

[2] Burapha Univ, Dept Civil Engn, Fac Engn, Chon Buri 20131, Thailand

来源：

MATERIALS & DESIGN | 2012年 / 36卷

关键词：

Concrete; Recycling; Mechanical; WATER PERMEABILITY; COMPRESSIVE STRENGTH; FLY-ASH; PERFORMANCE; ELASTICITY; MODULUS; CEMENT;

D O I：

10.1016/j.matdes.2011.11.065

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this study, bagasse ash, which is a large disposal landfill waste from sugar mill industries, is utilized as a pozzolanic material to improve the mechanical properties and durability of recycled aggregate concrete. Ground bagasse ash (GBA) was used to replace Portland cement Type I at the percentages of 20, 35, and 50 by weight of binder. Compressive strength, modulus of elasticity, water permeability, and chloride penetration depth of the concretes were determined. The results revealed that the modulus of elasticity of recycled aggregate concrete with and without GBA was lower than that of conventional concrete by approximately 19%. GBA can be used effectively to reduce the water permeability of recycled aggregate concrete. The increase of GBA content in recycled aggregate concrete results in a significant decrease in chloride penetration depths. In addition, the mechanical properties and durability of recycled aggregate concrete were efficiently improved by using 20% of GBA in the concrete mixtures. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：597 / 603

页数：7

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