摘要
为了研究纤维沥青混合料的综合性能,对掺加了聚酯纤维、木质素纤维、玄武岩纤维和海泡石纤维等4种纤维的试件进行了车辙试验、低温弯曲试验、冻融劈裂试验以及小梁弯曲疲劳试验.基于动稳定度、低温弯曲应变、冻融劈裂强度比、疲劳寿命和每平方米造价为评价指标,应用加权灰靶模型,对掺加4种纤维沥青混合料的方案进行了多指标评价,优选出基于路用性能和成本效益的最佳方案.结果表明:利用熵权法对传统灰靶模型加以改进,能够有效地解决评价模型中的等权问题,提高了评价的准确性;在同等条件下,玄武岩纤维沥青混合料的路用性能和经济性较好.
To investigate the comprehensive performance of fiber asphalt mixture, four types of fiber asphalt mixture with polyester, cellulose, basalt and sepiolite fibers were studied by the tests of wheel tracking, low temperature bending, freeze-thaw splitting and fatigue stability. Taking dynamic stability, low temperature bending strain, freeze-thaw splitting strength ratio, fatigue life and cost per square meter as evaluation indexes, the weight coefficient grey target theory was proposed to determine the best scheme based on road performance and cost-effectiveness. The results show that the grey target model can be improved by the introduction of entropy weight method to effectivelyolve the problems of traditional grey target evaluation model and increase the evaluation accuracy. The basalt fiber asphalt mixture has better road performance and cost-effectiveness than other three fiber asphalt mixtures under the same conditions.
出处
《江苏大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2016年第5期616-620,共5页
Journal of Jiangsu University：Natural Science Edition
基金
长安大学中央高校基本科研专项资金资助项目(2013G1502027)
关键词
纤维沥青混合料
道路工程
灰靶理论
熵权法
综合评价
fiber asphalt mixture
road engineering
grey target theory
entropy weight method
compre- hensive evaluation
