| 石棉尾矿酸浸渣填充改性道路沥青的研究 |
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| 引用本文： | 孙志明,郑水林,文明,吴照洋. 石棉尾矿酸浸渣填充改性道路沥青的研究[J]. 非金属矿, 2009, 32(6) |
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| 作者姓名： | 孙志明 郑水林 文明 吴照洋 |
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| 作者单位： | 中国矿业大学(北京)化学与环境工程学院,北京,100083 |
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| 摘 要： | 石棉尾矿酸浸渣是石棉尾矿蛇纹石酸浸提取氧化镁后的硅质粉体材料.本实验以煅烧后的石棉尾矿酸浸渣作为道路沥青填充改性剂,通过测定改性沥青的针入度、延度、软化点等指标,研究了酸浸渣填充量、混合控温以及加热混合时间对道路沥青综合性能的影响.结果表明,石棉尾矿酸浸渣填充改性沥青适宜的填充工艺条件为填充量6%,混合控温140℃,加热混合时间20min;在适宜的填充工艺条件下,改性沥青的高温性能、低温性能、高低温稳定性以及抗老化性均得到显著改善或提高.
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| 关 键 词： | 石棉尾矿 酸浸渣 改性沥青 |
Research on Road Asphalt Filled and Modified with Acid-leaching Residue of Asbestos Tailings |
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| Sun Zhiming,Zheng Shuilin,Wen Ming,Wu Zhaoyang. Research on Road Asphalt Filled and Modified with Acid-leaching Residue of Asbestos Tailings[J]. Non-metallic Mines, 2009, 32(6) |
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| Authors: | Sun Zhiming Zheng Shuilin Wen Ming Wu Zhaoyang |
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| Affiliation: | Sun Zhiming Zheng Shuilin Wen Ming Wu Zhaoyang (School of Chemical and Environmental Engineering,China University of Mining and Technology,Bejing 100083) |
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| Abstract: | The acid-leaching residue of asbestos tailings is silicon slag of asbestos tailings, one kind of solid waste after acid leaching extraction of magnesium. In this experiment, using acid leaching residue of asbestos tailings after calcination as the filler of asphalt modifier, through the test of penetration, ductility, softening point of modified asphalt, the effects of the adding volume and mixing conditions (temperature, time, etc.) of the acid leaching residue on the performance of road asphalt has been s... |
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| Keywords: | asbestos tailings acid-leaching residue modified asphalt |
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