水泥替代矿粉对水工沥青混凝土长期性能影响研究

李玫; 赵娜; 左永振; 何晓民; 谭凡

doi:10.11779/CJGE2017S1015

水泥替代矿粉对水工沥青混凝土长期性能影响研究 English Version

长江科学院水利部岩土力学与工程重点实验室,湖北武汉 430010

基金项目: 国家自然科学基金项目（51309024,51379021）; 长江科学院创新团队项目（CKSF2015051/YT）

详细信息

作者简介:
李玫（1962-）,女,高级工程师,主要从事岩土力学研究。E-mail:670196780@qq.com。

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出版历程
- 收稿日期: 2016-11-27
- 发布日期: 2017-11-19

Influence of cement instead of mineral powder on long-term deformation characteristics of asphalt concrete

Key Laboratory of Geotechnical Mechanics and Engineering of Ministry of Water Resources, Yangtze River Scientific Research Institute, Wuhan 430010, China

摘要

摘要: 传统的水工沥青混凝土原材料主要包括沥青、骨料和矿粉,矿粉的制作和加工很麻烦,而水泥的加工制作均较简单,为可购买建筑材料。基于此,提出用水泥代替矿粉,通过室内三轴流变试验,研究两种不同填料沥青混凝土的长期变形特性。试验表明,以水泥为填料的沥青混凝土的轴向应变略小于以矿粉为填料的沥青混凝土的轴向应变,以水泥为填料的沥青混凝土的蠕变指标也略小于以矿粉为填料的沥青混凝土的蠕变指标,但二者差异较小。因此,单从沥青混凝土的长期变形特性方面看,用水泥代替矿粉的沥青混凝土可获得更优的长期变形性能,并可简化工艺,降低工程造价。
- 水工沥青混凝土 /
- 长期变形特性 /
- 水泥 /
- 矿粉
Abstract: As one of composition materials (asphalt, aggregate, mineral powder) for hydraulic asphalt concrete, the mineral powder has a messy process of manufacture. Comparatively, the cement is easily processed and available for purchase. The mineral powder is replaced by the cement for the above reasons. The long-term deformation characteristics of asphalt concrete comprised with the mineral powder or cement are studied by using the laboratory triaxial rheological tests. The results show that the axial strains and creep indexes of asphalt concrete specimens comprised with the cement are slightly smaller than those comprised with the mineral powder, and the difference between them is much small. Consequently, the replacement of mineral powder by cement can improve the long-term deformation characteristics of asphalt concrete, simplify the manufacture processes, and reduce the engineering cost.
- hydraulic asphalt concrete /
- long-term deformation characteristic /
- cement /
- mineral powder

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参考文献(15)

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