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HIGH FLUIDITY CONCRETE AND INSTALLATION METHOD OF COATED CONCRETE USING THE SAME
HIGH FLUIDITY CONCRETE AND INSTALLATION METHOD OF COATED CONCRETE USING THE SAME
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机译:高流动性混凝土及采用相同方法的带涂层混凝土的安装方法
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摘要
PROBLEM TO BE SOLVED: To provide high fluidity concrete capable of suitably being used in an installation construction of a coated concrete of a tunnel which is difficult to be proceeded with a good aspect and an installation method of the coated concrete of a tunnel using the same.SOLUTION: There is provided high fluidity concrete by mixing a water-reducing agent and a thickener with base concrete containing a binding material, an aggregate and water, where the water-reducing agent is a naphthalene-based high performance water-reducing agent, the water-reducing agent is contained in the high fluidity concrete at 0.3% to 1.0% by mass ratio in terms of solid content, the thickener is contained at 0.01% to 0.11% by water mass ratio, initial slump flow is 540 nm or more, temporal slump flow after 60 minutes of 500 nm or less and temporal slump flow loss after 60 minutes of 50 mm/h to 200 m/h.SELECTED DRAWING: Figure 1
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机译:解决的问题:提供一种高流动性的混凝土,其能够适合用于难以良好地进行的隧道涂装混凝土的安装施工中,以及使用该高流动性混凝土的隧道涂装混凝土的安装方法解决方案:通过将减水剂和增稠剂与含有粘结材料,骨料和水的基础混凝土混合而提供高流动性混凝土,其中减水剂是萘基高性能减水剂,在高流动性混凝土中,减水剂的固含量为0.3质量%至1.0质量%,增稠剂的质量分数为水质量比为0.01%至0.11%,初始坍落度为540nm以上,60分钟后的瞬时坍落度为500 nm或更短,60分钟后的瞬时坍落度损失为50 mm / h至200 m / h。图1
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