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INTERNATIONAL RESEARCH ON FINES IN CONCRETE

机译:混凝土细化的国际研究

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摘要

Research on fines in concrete has been reported from countries throughout the world. The amount of fines passing the No. 200 sieve is increasing, and the use of these materials is the top priority of U.S. aggregate producers. Results from several international research studies show that the use of fines can be increased up to 15 percent without significantly affecting the concrete strength. Spain now permits up to 15 percent fines in normal construction and up to 10 percent for more aggressive environments. Similar specifications are being considered for adoption by the European Committee for Standardisation.
机译:世界上许多国家已经报道了对混凝土细粉的研究。通过200号筛子的罚款数量正在增加,使用这些材料是美国骨料生产者的头等大事。多项国际研究的结果表明,在不显着影响混凝土强度的情况下,细粉的使用最多可提高15%。西班牙现在允许在正常建筑中最高罚款15%,在更具侵略性的环境中最高罚款10%。欧洲标准化委员会正在考虑采用类似的规范。

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