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[학술저널]

  • 학술저널

최응규 김옥규 양극영

UCI(KEPA) : I410-ECN-0101-2009-540-014285281

초록

The objective of the study is to suggest a suitable woodpulp material and its optimum content applicableto carbon
fiber-reinforced cement composite. Following selection of a suitable carbon fiber within a range of inorganic fiber materials, a
series of experiments has been carried out to analyze the effects of varying woodpulp contents and its characteristics in cement
composite with respect to physical and mechanical properties.
The experiments have demonstrated that fibrin and fibril in the woodpulp play important roles in the inorganic fiber-reinforced
cement composite using carbon fiber; moderates inherent brittleness: disperses fibers uniformly: maintains the consistency of the
mixture. Analyzing the properties of carbon fiber-reinforced cement composite in relation to the varying contents of woodpulp, the
fibrin content in the woodpulp had significant effect upon the physical properties. In addition, the degree of fibrilization of
woodpulp determines the mechanical properties. In brief, softwood pulp having tougher fibers and broader fibrin with rich
fibrilization demonstrated better mechanical performance in the cement matrix. Observing the interfacial failure plane, while
excessive content of woodpulp in the cement matrix exhibited loose matrix structure with voids, 2.5% woodpulp content proved to
be optimum showing compact matrix structure.
Based on the result of the experiment, softwood pulp with rich fibrin content and well-developed fibrilization proved to be the
optimum woodpulp for inorganic fiber-reinforced cement composite. Optimum physical properties were obtained at the ranges of
2.5% to 3.0% in the woodpulp content. When carbon fiber is used as reinforcingfiber, the most effective content of woodpulp in
the mix to moderate brittleness of carbon fiber turned out to be approximately 3.0%.

목차

Abstract

1.서론

2.목재펄프의 특성에 따른 매트릭스의 실험재료

3. 목재펄프의 특성에 따른 무기섬유보강 시멘트복합체의 시편제작 및 물성 시험방법

4.실험결과 및 고찰

5.결론

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