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首页> 外文会议>International Center for Aggregates Research Tenth Annual Symposium on Aggregates: Asphalt Concrete, Portland Cement Concrete, Bases, amp; Fines; Apr 14-17, 2002; Baltimore, Maryland >THE EFFECTS OF HIGH FINES ON THE PROPERTIES OF CONCRETE
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THE EFFECTS OF HIGH FINES ON THE PROPERTIES OF CONCRETE

机译：高细度对混凝土性能的影响

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摘要

The use of manufactured fine aggregate (MFA) in portland cement concrete is becoming more common as sources of naturals ands are being depleted. There is as trong need t o b etter utilize MFA, particularly the minus 75 μm sizes. The development of specifications that aid aggregate producers, engineers and specifying agencies in the utilization of MFA is of interest to all parties. Better utilization of crushed aggregates has both economic and environmental benefits for the construction and materials industry. This report presents some of the effects of high fines on the properties of concrete. A total of 50 sands were used in the initial mortar study, 10 of which were included in the concrete research. A summary of the aggregate characteristics that affect the properties of concrete is presented.
机译：随着天然和天然资源的枯竭，在硅酸盐水泥混凝土中使用人造细骨料（MFA）变得越来越普遍。迫切需要更好地利用MFA，尤其是负75μm的尺寸。各方都对制定有助于总生产商，工程师和指定机构使用MFA的规范感兴趣。更好地利用压碎的骨料，对建筑和材料行业都具有经济和环境效益。该报告介绍了高细粉对混凝土性能的一些影响。在最初的砂浆研究中，总共使用了50种沙子，其中10种被包括在混凝土研究中。总结了影响混凝土性能的骨料特性。

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