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Properties of Fresh Concrete with Recycled Coarse and Fine Aggregates  

Choi, Ki-Sun (Korea Institute of Construction Technology)
You, Young-Chan (Korea Institute of Construction Technology)
Kim, Keung-Hwan (Korea Institute of Construction Technology)
Lee, Do-Heun (Housing & Urban Research Institute)
Publication Information
Resources Recycling / v.18, no.3, 2009 , pp. 20-26 More about this Journal
Abstract
The objective of this study is to investigate the properties of fresh concrete with recycled coarse and fine aggregates. Four different kinds of aggregate with natural, recycled aggregates were prepared. The concrete mixtures were produced with test parameters of replacement ratio of recycled aggregate. The properties of the fresh concrete were measured by means of slump and air content according to elapsed time. Quality control method to maintain the constant total mixing water for recycled aggregate concrete was suggested. The all concrete mixtures were produced with approximately the same slump on the job site after an hour. Test results indicated that compressive strength of concrete with constant slump is not affected by the replacement ratio of recycled aggregate. Also the practical way for the quality control of recycled aggregate concrete is to maintain the constant total mixing water.
Keywords
Recycled coarse aggregate; Recycled fine aggregate; Slump; Quality control;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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