高模量沥青混合料路用性能试验及AHP综合性能评价

Road Performance Tests and Evaluation of Comprehensive Performance of HMAM Based on Improved AHP and Climate Zones

目的研究高模量沥青混合料的路用性能,并建立沥青混合料在不同沥青路面气候分区的综合性能评价体系.方法采用70#、SBS以及两种高模量沥青混合料(Honeywell7686和路宝)进行试验研究,分析高模量剂对沥青混合料路用性能的影响.选取部分气候分区,基于层次分析法建立比较矩阵模型,得到各指标权重系数.结合各项性能指标评分,对不同分区下高模量沥青混合料综合性能进行客观评估.结果高模量剂能显著提高沥青混合料路用性能,进行综合评分后发现高模量沥青混合料综合性能更优.结论笔者提出的评价方法可以建立不同气候分区下沥青混合料综合性能评价体系,为不同气候分区下沥青混合料优选提供参考.

In order to study the performance of high modulus asphalt mixture(HMAM)and establish a comprehensive performance evaluation system for asphalt mixtures based on different climate zones.The performance tests were conducted using ordinary 70-penetration,SBS asphalt mixtures and two kinds of HMAM and the effect of the high modulus modifiers on the performance of the asphalt mixture was analyzed.Several climate zones were selected and a comparative matrix model was established through the analytic hierarchy process(AHP).The weight coefficients of indicators were obtained,the weight coefficients and the performance index score were combined to rank the comprehensive performance,and HMAM was evaluated more objectively.High modulus modifiers are capable of remarkably improving the overall performance,and HMAM were ranked higher by each climate zone.It was found that the comprehensive performance of HMAM was better after comprehensive scoring.The evaluation method proposed by the author can establish the comprehensive performance evaluation system of asphalt mixture under different climatic zones and provide certain reference for the selection of asphalt mixtures under different climatic zones.