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Properties of High-Strength and High-Fluidity Lightweight Concrete

机译:高强度高流动性轻质混凝土的性能

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摘要

High-strength and high-fluidity lightweight concretes have been developed using silica fume blended cement and belite-rich cement with a designed compressive strength from 40 to 60 MPa. Test conditions and parameters were water-cement ratio of 0.22, 0.33 and 0.40, curing temperature of 5, 20 and 35 deg C, curing method of standard and sealed curing and 3 types of high-range AE water-reducing agent. Influences of above factors upon flow, flow time, compressive strength, permeability, pore size distribution and total pore volume were studied.
机译:高强度,高流动性的轻质混凝土是使用硅灰混合水泥和富贝利特水泥制成的,其设计抗压强度为40至60 MPa。测试条件和参数为:水灰比为0.22、0.33和0.40,固化温度为5、20和35℃,标准固化和密封固化方法以及3种高范围AE减水剂。研究了上述因素对流动,流动时间,抗压强度,渗透性,孔径分布和总孔体积的影响。

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