바닥용 모르타르의 균열방지를 위한 실험적 연구 An Experimental Study for Crack Prevention of Floor Mortar

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Recently, the mortar crack on floor is very serious in construction field, e.g. the crack due to plastic shrinkage and the crack due to drying shrinkage. To prevent this kind of crack, optimum mix propertions not only satisfying the required workability but also minimizing the unit water content were selected. And the expansion admixtures were used to compensate the shrinkage of mortar. This study shows that water/cement ratio used in construction field is about 64%. Even if we reduce water/cement ratio of mortar by the appropriate use the fine aggregate with high fineness modulus and superplastizer, floor mortar can have the required workability. The equations between mortar flow and water/cement ratio, sand/cement ratio, fineness modulus of fine aggregate were proposed in this study. And this equation may provide available mix proportions of floor mortar.
Publisher
한국콘크리트학회
Issue Date
1996-04
Language
KOR
Citation

1996 한국콘크리트학회 봄 학술대회, pp.202 - 207

URI
http://hdl.handle.net/10203/125068
Appears in Collection
CE-Conference Papers(학술회의논문)
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