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首页> 外文会议>6th International RILEM Symposium on Performance Testing and Evaluation of Bituminous Materials, (PTEBM'03) Pt.1 Apr 14-16, 2003 Zurich, Switzerland >THE INFLUENCE OF FINE AGGREGATE ON THE BITUMINOUS MIXTURE MECHANICAL BEHAVIOUR
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THE INFLUENCE OF FINE AGGREGATE ON THE BITUMINOUS MIXTURE MECHANICAL BEHAVIOUR

机译：精细聚集体对双相混合机械行为的影响

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摘要

The mechanical behaviour of a bituminous mixture is influenced by its composition. One of the compositional parameters that can change the bituminous performance in a pavement is the gradation of the fine aggregates. This paper presents the stiffness, fatigue and permanent deformation results of bituminous mixtures used in wearing and base courses. For each type of mixture, five mixtures were defined, by changing the gradation curve (from more to less fine aggregates). All mixtures were produced and compacted in laboratory. Specimens for tests were obtained by cored and sawed from compacted slabs. For stiffness and fatigue, tests were executed on four point bending beam on controlled strain, whereas for permanent deformation tests were the repetitive simple shear test at constant height.
机译：沥青混合物的机械性能受其组成影响。可以改变路面沥青性能的组成参数之一是细骨料的级配。本文介绍了耐磨和基层沥青混合料的刚度，疲劳和永久变形结果。对于每种类型的混合物，通过更改渐变曲线（从更多的集料到更少的细集料）来定义五种混合物。所有混合物均在实验室生产并压实。通过压实板的去芯和锯切获得测试样品。对于刚度和疲劳，在受控应变下在四点弯曲梁上进行测试，而对于永久变形测试则是在恒定高度下进行的重复简单剪切测试。

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