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| 摘要: |
| 介绍了废橡胶颗粒在沥青路面中的应用技术,指出废橡胶颗粒干法改性沥青混合料存在力学强度不高、压实困难和压实后出现膨胀的技术难题.为此,从密实断级配沥青混合料的力学强度分析着手,提出了可改善废橡胶颗粒改性沥青混合料（CRUMAM）性能的设计方法,即采用密实断级配混合料和聚合物改性沥青的双重措施.室内试验表明,所设计的CRUMAM具有优良的高温稳定性、低温抗裂性和水稳定性. |
| 关键词: 废橡胶颗粒改性沥青混合料 密实断级配 设计方法 性能 |
| DOI： |
| 分类号:TU528.42 |
| 基金项目: |
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| Research on the Design and Properties of Crumb Rubber Modified Asphalt Mix(CRUMAM) |
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CAO Wei-dong
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| Abstract: |
| The application of crumb rubber in asphalt pavement was introduced.The problems of low mechanical strength,difficult compaction and swell of crumb rubber dry modified asphalt mix were pointed out.According to the analysis of mechanical strength of dense gap-graded asphalt mixes,the design method for CRUMAM was given,which was the employing of gap-graded dense skeleton structure together with polymer modified asphalt.The results of the lab tests show that CRUMAM has good high temperature stability,low temperature crack resistance and water susceptibility confirmed. |
| Key words: crumb rubber modified asphalt mix(CRUMAM),dense gap gradation,design method,property |
