| 유기 및 무기 섬유로 보강한 포트랜드 시멘트의 물성 연구 |
| 장복기, 김윤주1 |
전남대학교 신소재공학부
1동신대학교 신소재공학부 |
| Physical Properties of Organic- and Inorganic-Fiber Reinforced Portlandcement |
| Chang Pok-Kie , Kim Yun Ju 1 |
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| ABSTRACT |
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In this study, inorganic (steel, asbestos and carbon) and organic (polyacryl and polyamide) fibers were used to investigate their reinforcing effects of the physical properties of Portland cement. From the load-displacement curve of each reinforced specimen, fracture strength, Young's module, fracture energy and fracture toughness were computed and compared with each other. In addition, the experiment of their impact toughness was carried out and compared with the fracture energy. For the improvement of fracture strength the inorganic (asbestos) fiber reinforcement was most effective, while the best reinforcing effect of impact toughness was achieved by organic (polyacryl) fiber. And steel fiber proved to be most adequate for improvement of both fracture strength and impact toughness. Steel fiber also showed the highest fracture energy and fracture toughness among all of the fibers. |
| Key words:
Fiber reinforcement, Portland cement, Organic and inorganic fibers, Load-displacement curves, Impact toughness |
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