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http://dx.doi.org/10.11112/jksmi.2013.17.3.118

Enhancing the Performance of Polypropylene Fiber Reinforced Cementitious Composite Produced with High Volume Fly Ash  

Lee, Bang Yeon (전남대학교 건축학부)
Bang, Jin Wook (충남대학교 토목공학과)
Kim, Yun Yong (충남대학교 토목공학과)
Publication Information
Journal of the Korea institute for structural maintenance and inspection / v.17, no.3, 2013 , pp. 118-125 More about this Journal
Abstract
The synthetic fibers including Polyvinyl alcohol and Polyethylene fibers have been successfully used in the manufacture of high ductile fiber reinforced cementitious composites. Polypropylene (PP) fiber has also been used in composites, not for the purpose of achieving a high level of tensile ductility but to improve the fire resistance performance of concrete exposed to high temperatures. This paper discusses the method for enhancing the performance of composites supplemented with PP fiber. Five types of mixture proportions were designed with high volume fly ash for testing the performance of composites. Type I cement and fly ash F were used as binding materials. The water-to-binder ratio was 0.23~0.25, and the amount of PP fiber used was 2 vol%. Polystyrene bead were also used to increase the tensile ductility of composites. A series of experiments including slump, density, compression and uniaxial tension tests were performed to evaluate the performance of cementitious composites supplemented with PP fiber. From the test results, it was exhibited that the performance of composites supplemented with PP fiber can be enhanced by adopting the mechanics and statistics theory.
Keywords
Polypropylene; Fiber; Composite; High ductility; High volume fly ash;
Citations & Related Records
Times Cited By KSCI : 6  (Citation Analysis)
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