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-  2016 

橡胶粉掺量对高模量沥青及其混合料性能的影响 Influence of rubber powder content on characteristics of high modulus asphalt and its mixture

Keywords: 路面工程,高模量沥青混合料,橡胶粉,路用性能

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Abstract:

为改善高模量沥青混合料的性能缺陷,提出采用橡胶粉与高模量剂复配方案来改善其路用性能.通过DSR试验、BBR试验、MMLS3加速加载试验、低温弯曲试验、小梁弯曲疲劳试验分析4%~12%橡胶粉掺量对高模量沥青及其混合料技术性能的影响.试验结果表明:橡胶粉掺加超过8%后,高模量沥青的高温分级由82℃增加到88℃,低温分级由-12℃降低到-18℃;橡胶粉的加入可改善高模量沥青混合料的高温耐久性和低温抗裂性,且掺8%~10%橡胶粉后,高模量沥青混合料疲劳性能显著提高

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