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http://dx.doi.org/10.14190/JRCR.2017.5.2.144

Mechanical Properties of Recycled Aggregate Concrete Containing Fly Ash  

Yang, In-Hwan (Department of Civil Engineering, Kunsan National University)
Jeon, Byeong-Gwan (Department of Civil Engineering, Kunsan National University)
Publication Information
Journal of the Korean Recycled Construction Resources Institute / v.5, no.2, 2017 , pp. 144-151 More about this Journal
Abstract
The mechanical properties such as compressive strength and elastic modulus of recycled aggregate concrete containing fly ash are investigated in this study. The experimental parameters were replacement ratio of recycled coarse aggregate(RCA) and fly ash. Replacement ratio of RCA was 0, 30, 50, and 70% and replacement ratio of fly ash was 0, 15, 30%. The experimental results were extensively discussed about compressive strength and elastic modulus of concrete at ages of 7, 28 and 91 days. Compared with concrete not containing fly ash, the decrease of compressive strength and elastic modulus of concrete containing fly ash with the replacement ratio of 30% was significant. Therefore, the test results represented that the fly ash replacement ratio of less than 30% was favorable in terms of mechanical properties of recycled coarse aggregate concrete.
Keywords
Recycled coarse aggregate; Fly ash; Replacement ratio; Compressive strength; Elastic modulus;
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Times Cited By KSCI : 5  (Citation Analysis)
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