基于熵权-TOPSIS 理论的复合改性沥青配方优化

Optimization of Compound Modified Asphalt Formulation Based on Entropy Weight - TOPSIS Theory

摘要:

针对目前用于提高沥青及沥青混合料抗紫外老化能力外加剂较多的现状，综合考虑复合改性沥青宏观性能指标、微观性能指标以及成本因素，采用熵权-TOPSIS理论对于6种不同的抗老化剂方案进行优化。结果表明：采用该理论确定的层状双金属氢氧化物复配受阻胺类光稳定剂、紫外线吸收剂以及层状双金属氢氧化物复配受阻胺类光稳定剂两种复合改性沥青方案具有较好的性价比，可以满足沥青路面抗紫外特性需求。其为今后改性沥青配方设计与优化提供了新的技术途径。

关键词:改性沥青;抗紫外线;优化;熵权-TOPSIS理论

Abstract:

Aiming at the present situation of using many admixtures to improve the anti-ultraviolet aging ability of asphalt and asphalt mixture, the macro-performance index, micro-performance index and cost factor of compound modified asphalt are comprehensively considered. The entropy weight-TOPSIS theory is used to optimize 6 different inhibitor schemes. The result shows that two compound modified asphalt schemes determined by this theory have the good cost performances, and can satisfy the requirements of anti-ultraviolet characteristics of asphalt pavement, which provides the new technical approach for the design and optimization of modified asphalt formulation in the future.

Key words:modified asphalt; anti-ultraviolet; optimization; entropy weight - TOPSIS theory