Design of performance evaluation model for warm mix recycled asphalt pavement based on fuzzy decision algorithm

In order to improve the accuracy and comprehensiveness of asphalt pavement performance evaluation, a performance evaluation model based on warm mixed recycled asphalt pavement was proposed. Based on the evaluation indexes such as pavement quality, pavement damage, pavement structure bearing capacity, pavement skid resistance, pavement rutting and pavement comprehensive performance, the performance evaluation system of warm mixed recycled asphalt pavement was established. According to the standard numerical characteristics of asphalt pavement performance evaluation index, the subjection function of asphalt pavement performance is constructed. The trapezoidal and semi-trapezoidal distribution functions are obtained, and the membership functions of each distribution section are established. Considering the comprehensiveness, fuzziness and complexity of the evaluation, the fuzzy decision algorithm is introduced to determine the interval weight of each index, and the structure is quantified according to the evaluation index. The membership function and fuzzy subset are established. The evaluation standard and evaluation level are determined based on fuzzy relation matrix, and the pavement performance is evaluated. The experimental results show that the evaluation results of this model are accurate and reliable, and it has obvious advantages in application.