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Ultra-high Performance Concrete Composition With Low Shrinkage And Method for Manufacturing Ultra-high Performance Concrete Using the Same
Ultra-high Performance Concrete Composition With Low Shrinkage And Method for Manufacturing Ultra-high Performance Concrete Using the Same
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机译：低收缩率的超高性能混凝土组合物及使用该组合物制造超高性能混凝土的方法
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摘要
The present invention relates to a shrinkage-reducing ultra-high-strength concrete composition that can improve the durability of a concrete structure by significantly improving mechanical performance compared to conventional cement concrete and at the same time having excellent shrinkage reduction performance, and a method of manufacturing ultra-high-strength concrete using the same. As a result, the shrinkage-reducing ultra-high strength concrete composition according to the present invention includes 20 to 30 parts by weight of silica fume, 30 to 40 parts by weight of crushed quartz, and 100 to 120 parts by weight of silica sand based on 100 parts by weight of cement. , Carbon nanotube (CNT) 0.05 to 0.15 parts by weight, nano silica 1.5 to 2.5 parts by weight, CSA expansion material 1 to 10 parts by weight, shrinkage reducing agent 0.1 to 3 parts by weight, fluidizing agent 2 to 5 parts by weight, It may include 1.5 to 2.5% by volume of steel fiber, and 21 to 24 parts by weight of water.
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