Effects of Repeated Loading on Gravel and Crushed Stone Base Course Materials Used in the AASHO Road Test
Effects of Repeated Loading on Gravel and Crushed Stone Base Course Materials Used in the AASHO Road Test
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重复加载对 AASHO 道路测试中使用的砾石和碎石基层材料的影响
DOI：
10.5703/1288284313622
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发表时间：
1963
期刊：
影响因子：
--
通讯作者：
E. J. Yoder
中科院分区：
文献类型：
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作者：
J. H. Haynes;E. J. Yoder
本文介绍了aasho道路试验碎石和碎石混合物在重复荷载作用下的实验室研究结果。近似于高速公路路面基层的。重复载荷是在普渡大学土木工程学院实验室开发的设备上进行的。研究中使用的材料均来自aasho道路试验现场。砾石和碎石的粒度分布与道路试验中使用的相同，并且压实到现场发现的平均密度水平，这是主要关注的主题。细粒百分比和饱和度的变化被认为对这些基本级配有很大的影响。因此，通过的百分比。改变200筛子，使每种材料得到三种混合物。这三种混合物在三个饱和度水平下进行了测试。研究了这些变量对重复载荷作用下材料变形回弹特性的影响。从这些研究中发现了优势和基础教材，并进行了详细的报道。此外，还比较了两种材料在实验室和现场的性能。/作者/
THIS PAPER PRESENTS THE RESULTS OF A LABORATORY INVESTIGATION OF THE BEHAVIOR OF THE AASHO ROAD TEST GRAVEL AND CRUSHED STONE MIXTURES SUBJECTED TO REPEATED LOADING. APPROXIMATING THOSE THAT WOULD BE FOUND IN THE BASE COURSE OF A HIGHWAY PAVEMENT. THE REPETITIVE LOADINGS WERE APPLIED WITH EQUIPMENT DEVELOPED IN THE LABORATORIES OF THE SCHOOL OF CIVIL ENGINEERING AT PURDUE UNIVERSITY. THE MATERIALS USED IN THE STUDY WERE OBTAINED FROM THE SITE OF THE AASHO ROAD TEST. THE GRAVEL AND CRUSHED STONE WITH GRAIN-SIZE DISTRIBUTION EQUAL TO THAT USED IN THE ROAD TEST AND COMPACTED TO THE MEAN DENSITY LEVELS FOUND IN THE FIELD WERE THE SUBJECT OF PRIMARY INTEREST. VARIATION IN PERCENT FINES AND DEGREE OF SATURATION WERE CONSIDERED TO HAVE A GREAT EFFECT ON THESE BASIC GRADATIONS. THEREFORE, THE PERCENT PASSING THE NO. 200 SIEVE WAS VARIED SO THAT THREE MIXTURES OF EACH MATERIAL WERE OBTAINED. THESE THREE MIXTURES WERE TESTED AT THREE LEVELS OF SATURATION. THE EFFECTS OF THESE VARIABLES ON THE DEFORMATION-REBOUND CHARACTERISTICS OF THE MATERIALS UNDER REPEATED LOADS WERE STUDUED. FROM THESE STUDIES, THE ADVANTAGES AND BASE COURSE MATERIALS, WERE FOUND AND ARE REPORTED IN DETAIL . ALSO, A COMPARISON BETWEEN THE LABORATORY AND FIELD PERFORMANCE OF THE TWO AASHO MATERIALS IS PRESENTED. /AUTHOR/