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http://dx.doi.org/10.14190/JRCR.2014.2.1.019

A Study on the Mechanical Properties of Fiber Reinforced Concrete by Kenaf Dosages  

Kwon, Yeong-Ho (Depart. of Archtecture and Fire service Administration, Dong Yang University)
Jun, Woo-Chul (Doosan ENC, Rexcon QC team)
Publication Information
Journal of the Korean Recycled Construction Resources Institute / v.2, no.1, 2014 , pp. 19-25 More about this Journal
Abstract
The purpose of this study is to establish experimentally the mechanical properties of fiber reinforced concrete using kenaf dosages and propose the usable method of kenaf fiber in the concrete industry as natural fiber materials. Kenaf fiber help make the concrete strength including tensile and flexural stronger, more resistant to plastic and drying shrinkage, less amount of carbon dioxide because of having a rough surface and excellent tensile strength of fiber and improving the concrete's corrosion resistance. It is to select the kenaf dosages of 4 cases (0, 0.3, 0.6 and $0.9kg/m^3$ and perform various tests including slump, air content, plastic and drying shrinkage, flexural and tensile strength for fiber reinforced concrete. The results of this study are as follows : In case of increasing kenaf fiber dosages, show the slump decrease and air content increase, also take effect results for increasing concrete strength including flexural and tensile, decreasing plastic and drying shrinkage. therefore, considered test results and cost, the optimum dosages of kenaf fiber is proposed about $0.6kg/m^3$ and need to study on the site application considering concrete quality and another compared tests.
Keywords
Kenaf fiber; dosages; Tensile strength; Flexural strength; Plastic shrinkage;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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