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首页> 美国卫生研究院文献>Materials >Assessment for Sustainable Use of Quarry Fines as Pavement Construction Materials: Part I—Description of Basic Quarry Fine Properties
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Assessment for Sustainable Use of Quarry Fines as Pavement Construction Materials: Part I—Description of Basic Quarry Fine Properties

机译：可持续利用采石场粉作为路面建筑材料的评估：第一部分—采石场基本特性的描述

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摘要

As a secondary material, quarry fines are a valuable material to be reused for many purposes in civil engineering projects. The aggregate source depletion, especially the lack of high quality aggregates as expected in the future, as well as the demand for a carbon-neutral society and circular economy, also promotes the high-volume utilization of secondary materials such as quarry fines. The aim of this study is to do a feasibility assessment including a series of laboratory tests and analyses to evaluate the properties of quarry fine materials to determine if this type of material could be qualified as pavement construction material in high volume. The gradation information obtained from both sieving and hydrometer tests indicates the frost susceptibility of unstabilized quarry fines, therefore frost heave tests were performed and which further suggest the necessity of stabilization to improve its properties for pavement applications, especially in structural layers such as base, subbase, or filter layers. Some other general information and properties of unbound quarry fines, especially regarding their validity for application in pavement engineering are also investigated and discussed.
机译：作为次要材料，采石场罚款是一种有价值的材料，可在土木工程项目中用于许多目的。总资源的枯竭，特别是未来缺乏预期的高质量集料，以及对碳中和社会和循环经济的需求，也促进了诸如采石场罚款等次生材料的大量利用。这项研究的目的是进行可行性评估，包括一系列实验室测试和分析，以评估采石场精细材料的性能，以确定这种类型的材料是否可以用作大量的路面建筑材料。从筛分和比重计测试中获得的等级信息表明了不稳定的采石场细粉的霜冻敏感性，因此进行了霜胀试验，这进一步表明必须进行稳定化以改善路面性能，特别是在结构层（例如基础，底层）中，或过滤层。还研究和讨论了未约束的采石场罚款的其他一些一般信息和性质，尤其是关于其在路面工程中的有效性。

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