콘크리트내 셀룰로오스 칩 화이버의 분산특성에 관한 실험적 연구

Abstract

본 연구에서는 셀룰로오스 칩 화이버를 콘크리트 내에 균질하게 분산시키기 위한 소재 변형 및 실제 믹싱시간을 2분 이내로 목표로 하여 실용화하는 기초적 실험연구를 수행하였다.

Tensile as well as flexural strengths of concrete can be substantially increased by introducing closely spaced fibers that would obstruct the propagation of microcracks, therefore delaying the onset of tension cracks and increasing the tensile strength of the material. Fibers of various shapes and sizes produced from steel, plastic, glass and natural materials are being used. In this study, we used cellulose chip fiber to decrease the shrinkage crack in mortar and concrete. Specially, we have studied the dispersion characteristic of cellulose chip fiber. As a result, it was assumed that the slurry type of cellulose chip fiber is very effective to disperse the fiber in mortar and concrete.