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http://dx.doi.org/10.14190/JRCR.2015.3.1.043

Effect of the Replacement of Recycled Coarse Aggregates Under 13mm on Engineering Properties of the Concrete  

Han, Min-Cheol (Department of Architectural Engineering, Cheongju University)
Kang, Byeong-Heo (Department of Architectural Engineering, Cheongju University)
Publication Information
Journal of the Korean Recycled Construction Resources Institute / v.3, no.1, 2015 , pp. 43-49 More about this Journal
Abstract
The objective of this paper is to investigate experimentally the effect of the substitution of recycled aggregates under 13mm on the properties of the concrete using coarse aggregate with size of 13~25mm. Recycled aggregate under 13mm were substituted to the concrete ranged from 10% to 100%. To compare the properties with the case of recycled aggregate, crushed stone with smaller than 13mm was also substituted to the concrete by 20% and 40%. Test results showed that increase of recycled aggregate under 13mm resulted in the increase of slump and compressive strength compared with plain mixture, which was made with only aggregate with 13~25mm size. This is due to the dense gradation of aggregate in association with addition of relatively small particle. It is thought that the use of recycled aggregate under 13mm along with 30% contributes to the quality improvement of the concrete made with only 13~25mm aggregate.
Keywords
Recycled aggregate; Dense gradation; Gap gradation concrete;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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