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http://dx.doi.org/10.14190/JRCR.2016.4.3.235

Characteristic of Cementitious Mortar Using High Volume of Recycled Fine Aggregate  

Kim, Sang-Chel (Department of Civil Engineering, Hanseo University)
Park, Do-Kuk (Department of Civil Engineering, Hanseo University)
Yoog, Keun-Chang ((Institute of Technology, Palma)
Publication Information
Journal of the Korean Recycled Construction Resources Institute / v.4, no.3, 2016 , pp. 235-242 More about this Journal
Abstract
As for a possibility of using high volume of recycled aggregate in concrete mixture, recycled fine one which is known to be worse in quality and hard to control was selected and investigated in terms of performance of mortar as the replacement ratio to natural fine aggregate was changed. As a result of test, it is found that grade of recycled fine aggregate was beyond standard one and fineness modulus of that itself was increased in compare to natural one. In case of making mortar with recycled fine aggregate, disadvantageous results such as less fluidity and air content including the increase of dry shrinkage were shown but strengths of mortar were comparable to the one making with natural aggregate, which means that planned strength of common concrete structure can be achieved by controlling W/C and the amount of chemical admixture, and also that large amount of recycled fine aggregate is applicable to the precast concrete products generally free to the amount of water.
Keywords
Recycled fine aggregate; Fluidity; Air content; Relative compressive strength ratio; Flexural strength; Dry shrinkage;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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