유리纖維 補强 콘크리트 流動 特性에 관한 硏究 = A Study on the Flowing Characteristics of Glass Fiber Reinfored Concrete

다국어 초록 (Multilingual Abstract)

Concrete is an excellent structural material, but it has many problems due to brittle behavior, weak resistance in tension, flexibility and toughness.
In order to improve these problems, usually fiber reinforced concrete is used. But in the case of GFRC insufficient workability is caused by using glass fiber and there is lack of studying on it.
This report of the following concrete of GFRC was experimented by the different W/C, S/A, glass fiber contents and maximum size of Aggregates.
The results of this study is as follows;
1) Optimum S/A ratio is 0.6 at the glass fiber contents of from 0.25% to 0.75% in GFRC, but it cannot be obtained optimum S/A ratio at over 0.75.
2) Even though increasing the W/C ratio, we can get more slump, but slump is much more influenced by fiber contents in GFRC rather than increasing the W/C ratio.
3) Workability of GFRC is much more influenced by fiber contents than fiber length.
4) Workability of GFRC is a little improved by the bigger maximum size of aggregates.