Effect of fines content on frost heave
Effect of fines content on frost heave
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DOI：
10.1139/t96-092-313
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发表时间：
1996-08
影响因子：
3.6
通讯作者：
Robert E Tester;P. Gaskin
中科院分区：
文献类型：
--
作者：
Robert E Tester;P. Gaskin
在季节性霜冻地区，路面结构的完整性取决于基层和底基层土对霜冻作用的抵抗力。本说明描述了美国陆军寒区研究和工程实验室CRREL II实验室对不同细粉含量的粉碎石灰岩进行冻结试验的结果。冻胀随着细粉含量的增加呈线性增加。在CRREL霜冻敏感性标准下，碎石是令人满意的，粉碎度高达8%。较大的罚款含量导致了不满意的分类。关键词：霜冻敏感性、细粒含量、路基。
In regions of seasonal frost the integrity of pavement structures is dependent on the resistance of base and subbase soils to frost action. This note describes the results of performing the U.S. Army Cold Regions Research and Engineering Laboratory CRREL II laboratory freezing test on a crushed limestone with a varying fines content. Frost heave increased linearly as fines content increased. Under the CRREL frost susceptibility criterion, the crushed gravel was satisfactory with up to 8% fines. A greater fines content resulted in an unsatisfactory classification. Key words: frost susceptibility, fines content, road base.