| 张应波,王为标,兰晓,赵元弘.土石坝沥青混凝土心墙酸性砂砾石料的适用性研究[J].水利学报,2012,43(4): |
| 土石坝沥青混凝土心墙酸性砂砾石料的适用性研究 |
| Research on the suitability of acidic gravels for asphalt core of embankment dam |
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| DOI： |
| 中文关键词: 水工结构 适用性 试验研究 砂砾石 沥青混凝土心墙 土石坝 |
| 英文关键词: hydraulic structure suitability experimental research gravels asphalt core embankment dam |
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| 中文摘要: |
| 以双桥土石坝沥青混凝土心墙为例，系统地进行了酸性砂砾石料的沥青混凝土配合比试验，包括了添加和不添加抗剥落剂的水稳定及拉伸、抗压、弯曲、渗透和三轴性能对比试验。经系统地进行配合比和酸性砂砾石料适用性试验研究，推荐该工程心墙的沥青混凝土配合比为粗骨料采用50%破碎砂砾石料和50%天然砂砾石料，细骨料采用50%破碎砂砾石料和50%天然河砂，水泥用作填料又兼做提高沥青与骨料黏附力的措施。结果表明，添加与不添加抗剥落剂的酸性砂砾石料沥青混凝土的性能没有明显差别。 |
| 英文摘要: |
| The asphalt core of the Shuangqiao Embankment Dam is taken as a case study， asphalt concrete mix design with acidic gravels is systemically studied and comparisons of immersion stability，tensile， compressive，bending，water permeability and triaxial tests are conducted with and without amine. After systematically testing on the asphalt mix dsign and on the suitability of acidic gravels，the asphalt mix for the core is recommended with 50% crushed gravels and 50% natural gravels for the coarse aggregates， 50% crushed gravels and 50% natural sands for the fine aggregates， and cement used as the fillers as well as the measures to increase the adhesion of acidic gravel aggregates and bitumen. Test results show that there were no significant differences in behaviors for the acidic gravels asphalt concrete with and without amine. |
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