Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/18981
Title: Long-term mechanical and durability properties of recycled aggregate concrete prepared with the incorporation of fly ash
Authors: Kou, SC
Poon, CS 
Keywords: Concrete
Fly ash
Long-term properties
Recycled aggregates
Issue Date: 2013
Publisher: Elsevier Sci Ltd
Source: Cement and concrete composites, 2013, v. 37, no. 1, p. 12-19 How to cite?
Journal: Cement and Concrete Composites 
Abstract: 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 10 years. 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 10 years, 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.
URI: http://hdl.handle.net/10397/18981
ISSN: 0958-9465
DOI: 10.1016/j.cemconcomp.2012.12.011
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