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首页> 外文会议>International Center for Aggregates Research 5th Annual Symposium Proceedings; Apr 21-23, 1997; Austin, TX >UTILIZATION OF FINES IN CONCRETE
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UTILIZATION OF FINES IN CONCRETE

机译：混凝土中细化纤维的利用

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摘要

By the early 1970's increased production of Portland Cement Concrete (PCC) in the northern half of Georgia had resulted in crushed stone producers competing with natural sand suppliers for a share of the fine aggregate market. Inherently, crushed stone fines have a high content of dust sized particles that have been restricted by specifications from use in PCC. Removal of those fines to meet the rigid material specifications for PCC has resulted in an enormous problem with by-product fines that are essentially non-salable. This paper addresses the evolution of PCC requirements for additional sand in the mixes and how the material specifications are being used to minimize the production of by product fines.
机译：到1970年代初，佐治亚州北部的波特兰水泥混凝土（PCC）产量增加​​，导致碎石生产商与天然砂供应商争夺精细骨料市场的份额。固有地，碎石细屑具有高含量的尘埃大小的颗粒，这些颗粒受PCC使用规范的限制。去除这些细粉以满足PCC的刚性材料规格，已经导致了基本上不可销售的副产品细粉的巨大问题。本文介绍了PCC对混合物中其他砂料的要求的演变，以及如何使用材料规格来最大程度地减少副产品细粉的生产。

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