Comprehensive performance evaluation of low-carbon modified asphalt based on efficacy coefficient method

Abstract

This study addresses the difficulty in systematically and scientifically evaluating the comprehensive performance of low-carbon modified asphalt. Sixteen technical indexes were selected as evaluation indicators. The corresponding weight of each evaluation index was determined by the coefficient of variation method. The fundamental performance, environmental protection effect, and economic effect of low-carbon modified asphalt were analyzed systematically. A comprehensive performance evaluation system for low-carbon modified asphalt was established based on the efficacy coefficient method. Low-carbon modified asphalt using tourmaline anion powder was selected as an example for inspection. Its comprehensive performance was evaluated, and the optimal content of tourmaline anion powder was determined. The results showed that the comprehensive performance evaluation of low-carbon modified asphalt using tourmaline anion powder reflects well the actual situation, meaning that a comprehensive performance evaluation system for low-carbon modified asphalt based on the efficacy coefficient method is relatively reliable and useful. This study lays the foundation for the comprehensive performance evaluation and further application of low-carbon modified asphalt.