| BRA与SBR复合改性沥青及其混合料技术性能研究 |
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| 引用本文： | 周丽峰.BRA与SBR复合改性沥青及其混合料技术性能研究[J].中南公路工程,2014(6):277-282. |
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| 作者姓名： | 周丽峰 |
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| 作者单位： | 乌海市公路管理局,内蒙古乌海016000 |
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| 摘 要： | 为了弥补BRA改性沥青低温抗裂性能方面的技术缺陷,提出采用SBR与BRA复配方案对其进行改善。通过对不同BRA掺量下的BRA与SBR复合改性沥青流变特性,以及复合改性沥青混合料路用性能研究,结果表明,BRA掺量在10%~15%时,复合改性沥青混合料综合路用性能最佳,BRA与SBR复合改性沥青混合料的各项路用性能可达到甚至超过了SBS改性沥青混合料。
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| 关 键 词： | 路面工程 复合改性沥青混合料 路用性能 |
Study on Technical Characteristic of the BRA and SBR Composite Modified Asphalt and Asphalt Mixture |
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| ZHOU Lifeng.Study on Technical Characteristic of the BRA and SBR Composite Modified Asphalt and Asphalt Mixture[J].Central South Highway Engineering,2014(6):277-282. |
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| Authors: | ZHOU Lifeng |
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| Institution: | ZHOU Lifeng (Wuhai Highway Administration Bureau, Wuhai, Inner Mongolia 016000, China) |
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| Abstract: | In order to compensate for technical deficiencies BRA modified asphalt low temperature cracking performance, this paper proposes the use of SBR BRA complex with its improvement plan. Through the BRA and the rheological properties of the composite SBR modified asphalt under different BRA content, as well as composite modified asphalt pavement performance studies, results showed that, BRA content in the 10% - 15% compound modified asphalt mixture comprehensive road performance best, BRA and SBR modified asphalt composite various road performance can be achieved even more than the SBS modified asphalt mixture. |
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| Keywords: | pavement engineering composite modified asphalt mixture road performance |
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