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Properties of polypropylene fiber reinforced silica fume expansive-cement concrete

机译:聚丙烯纤维增强硅粉膨胀水泥混凝土的性能

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This paper reports on a comprehensive study on the mechanical properties of expansive-cement concrete containing silica fume and polypropylene fibers. Properties studied include those of the fresh mix properties, length change, rapid chloride permeability, compressive strength, flexural behavior, and bond of hardened concrete. Silica fume content used was 5 and 10/100 and fiber volume fraction was 0.10, 0.30, and 0.50/100. Results show that the use of 5/100 silica fume combined with 0.30/100 fiber volume fraction results in optimum mixture design for repair applications from the standpoints of workability, bond, strength, length change and permeability.
机译:本文对含硅粉和聚丙烯纤维的膨胀水泥混凝土的力学性能进行了综合研究。所研究的性能包括新鲜拌合性能,长度变化,快速的氯化物渗透性,抗压强度,挠曲性能和硬化混凝土的粘结性能。所使用的硅粉含量为5和10/100,纤维体积分数为0.10、0.30和0.50 / 100。结果表明,从可加工性,粘结性,强度,长度变化和渗透性的角度出发,将5/100硅粉与0.30 / 100纤维体积分数结合使用可为维修应用提供最佳的混合物设计。

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