| 矿渣消石灰粉乳化沥青混凝土性能与微观机理 |
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| 引用本文： | 杜少文,王振军.矿渣消石灰粉乳化沥青混凝土性能与微观机理[J].建筑材料学报,2009,12(2). |
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| 作者姓名： | 杜少文 王振军 |
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| 作者单位： | 1. 同济大学交通运输工程学院,上海,201804
2. 长安大学材料科学与工程学院,陕西西安,710054 |
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| 摘 要： | 研究了矿渣消石灰粉用量对乳化沥青混凝土稳定度、抗压强度、抗压回弹模量和劈裂强度的影响,使用红外光谱、X衍射和扫描电镜分析了矿渣消石灰粉改善乳化沥青混凝土强度的微观机理.结果表明,添加矿渣消石灰粉能显著提高乳化沥青混凝土力学性能;在消石灰的碱性激发作用下,矿渣粉与乳化沥青中的水相发生了水化反应,生成了水化硅酸钙凝胶,它和乳液破乳后的沥青通过物理过程形成了复合胶结料,改善了沥青胶浆微观结构,增大了胶浆黏度,增强了胶浆与集料界面的黏结,从而提高了乳化沥青混凝土的力学性能.
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| 关 键 词： | 乳化沥青混凝土 矿渣 消石灰 力学性能 微观机理 |
Mechanical Performance and Microcosmic Mechanism of Asphalt Emulsion Concrete Modified by Slag and Hydrated Lime Powder |
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| DU Shao-wen,WANG Zhen-jun.Mechanical Performance and Microcosmic Mechanism of Asphalt Emulsion Concrete Modified by Slag and Hydrated Lime Powder[J].Journal of Building Materials,2009,12(2). |
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| Authors: | DU Shao-wen WANG Zhen-jun |
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| Affiliation: | 1.School of Traffic and Transportation Engineering;Tongji University;Shanghai 201804;China;2.School of Materials Science and Engineering;Chang'an University;Xi'an 710054;China |
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| Abstract: | The influence of slag and hydrated lime powder on mechanical performance of asphalt emulsion concrete including Marshall stability,compressive strength,compressive modulus,and indirect tesnsile strength was investigated. Infrared spectroscopy analysis,X-ray diffraction analysis and scan electron microscopy were used to investigate the microcosmic mechanism of strength of asphalt emulsion concrete with slag and hydrated lime powder.The results show that proper content of slag and hydrated lime powder can sig... |
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| Keywords: | asphalt emulsion concrete granulated blast furnace slag hydrated lime mechanical performance microcosmic mechanism |
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