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科技导报  2014 

AC-13布敦岩改性沥青混合料的路用性能

DOI: 10.3981/j.issn.1000-7857.2014.20.003, PP. 27-32

Keywords: 布敦岩沥青,改性沥青混合料,路用性能

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Abstract:

为探讨布敦岩改性沥青的路用性能,以辽河A-90号沥青作为基质沥青,布敦岩沥青作为外掺剂制备改性沥青混合料,通过车辙、浸水马歇尔、冻融劈裂、低温小梁弯曲等实验,研究沥青混合料的高低温性能和浸水性能,进而分析布敦岩沥青掺量对沥青混合料路用性能的影响。结果表明,布敦岩沥青可以有效地改善沥青的感温性能和抗老化性能,随着布敦岩沥青掺量的增加,混合料的高温稳定性能和水稳定性大大提高,但当布敦岩沥青掺量从20%增加到30%时,低温性能略有降低,因此布敦岩沥青掺量不宜超过30%。

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