Long-term mechanical and durability properties of recycled aggregate concrete prepared with the incorporation of fly ash

This paper presents the findings of a long-term study on the mechanical and durability properties of concrete prepared with 0%, 50% and 100% recycled concrete aggregate that were cured in water or outdoor exposure conditions for 10years. The recycled aggregate concrete (RAC) was prepared by using 25...

Full description

Saved in:
Bibliographic Details
Published inCement & concrete composites Vol. 37; pp. 12 - 19
Main Authors Kou, Shi-Cong, Poon, Chi-Sun
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 01.03.2013
Subjects
Aggregates
Cements
Compressive strength
Concrete
Concretes
Durability
Fly ash
Long-term properties
Modulus of elasticity
Recycled
Recycled aggregates
Fly ash
Recycled aggregates
Long-term properties
Concrete
Online AccessGet full text

Cover

More Information
Summary:This paper presents the findings of a long-term study on the mechanical and durability properties of concrete prepared with 0%, 50% and 100% recycled concrete aggregate that were cured in water or outdoor exposure conditions for 10years. The recycled aggregate concrete (RAC) was prepared by using 25%, 35% and 55% class-F fly ash, as cement replacements. It was found that, after 10years, the compressive strength and modulus of elasticity of the concrete prepared with 100% recycled concrete aggregate was still lower than that of the control concrete. Over this period, the highest gain in compressive strength and modulus of elasticity was recorded for the concrete mixture prepared with 55% fly ash. Fly ash improved the resistance to chloride ion penetration but it also increased the carbonation depth of the concrete.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:0958-9465
1873-393X
DOI:10.1016/j.cemconcomp.2012.12.011