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http://dx.doi.org/10.11112/jksmi.2015.19.2.117

Mechanical Properties in Rice Husk Ash and OPC Concrete with Coconut Fiber Addition Ratios  

Lee, Min-Hi (호원대학교 건축공학과)
Kwon, Seung-Jun (한남대학교 건설시스템공학과)
Park, Ki-Tae (한국건설기술연구원 인프라구조연구실)
Publication Information
Journal of the Korea institute for structural maintenance and inspection / v.19, no.2, 2015 , pp. 117-124 More about this Journal
Abstract
Currently, Eco-friendly construction materials are widely utilized for reducing $CO_2$ emission in construction. Furthermore various engineering fibers are also added for improving a brittle behavior in concrete. In the paper, concrete specimens with 10% and 20% replacement ratio with RHA (Rice Husk Ash) are prepared, and engineering behaviors in RHA and OPC concrete are evaluated with different addition of coconut fiber from 0.125~0.375% of volume ratio. Several basic tests including compressive strength, tensile strength, flexural strength, impact resistance, and bond strength are performed, and crack width and deflections are also measured in flexural test. RHA is evaluated to be very effective in strength development and 0.125% of fiber addition leads significant improvement in tensile strength, ductility, and crack resistance. RHA and coconut fiber are effective construction material both for reutilization of limited resources and performance improvement in normal concrete.
Keywords
Rice ash husk(RHA); Coconut fiber; Crack; Compressive strength; Performance improvement;
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Times Cited By KSCI : 5  (Citation Analysis)
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