Performance assessment of micro-nano tire rubber and SBS composite-modified asphalt based on the combination weighting and TOPSIS method

IF 7.4 1区工程技术 Q1 CONSTRUCTION & BUILDING TECHNOLOGY Construction and Building Materials Pub Date : 2025-03-07 DOI:10.1016/j.conbuildmat.2025.140592

Jingchen Li, Weidong Cao, Ziqi Yan, Yingjian Li, Zunhao Zhan

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Abstract

Reclaimed rubber (RR) is both a cost-effective and eco-friendly alternative to waste rubber, particularly in hot mix asphalt applications. Among various types of RR, micro-nano tire rubber (MNTR) has emerged as a research hotspot for enhancing asphalt modification techniques. This study aimed to evaluate the effect of MNTRs with various Mooney viscosities and SBS on the performance of composite modified asphalt. Firstly, nine combinations of MNTR/SBS composite modified asphalt were arranged using orthogonal experimental design, and their high- and low-temperature rheological properties and storage stability were tested and analyzed using bending beam rheometer and dynamic shear rheometer tests. Then, the optimal combination for comprehensive performance was determined using the Entropy-CRITIC and TOPSIS methods combined with range analysis. Additionally, microscopic analysis, including thermogravimetric analysis (TGA) and scanning electron microscopy (SEM), was conducted to gain insight into the modification mechanism. The results showed that the optimal combination was 15 % MNTR-L with 2 % SBS modified asphalt, demonstrating superior properties compared to MNTR-M and MNTR-H modified asphalt. SEM tests revealed that the rough surface of MNTR-L improved bonding with the asphalt binder, thereby enhancing its properties.

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来源期刊

Construction and Building Materials 工程技术-材料科学：综合

CiteScore

13.80

自引率

21.60%

发文量

3632

审稿时长

82 days

期刊介绍： Construction and Building Materials offers an international platform for sharing innovative and original research and development in the realm of construction and building materials, along with their practical applications in new projects and repair practices. The journal publishes a diverse array of pioneering research and application papers, detailing laboratory investigations and, to a limited extent, numerical analyses or reports on full-scale projects. Multi-part papers are discouraged. Additionally, Construction and Building Materials features comprehensive case studies and insightful review articles that contribute to new insights in the field. Our focus is on papers related to construction materials, excluding those on structural engineering, geotechnics, and unbound highway layers. Covered materials and technologies encompass cement, concrete reinforcement, bricks and mortars, additives, corrosion technology, ceramics, timber, steel, polymers, glass fibers, recycled materials, bamboo, rammed earth, non-conventional building materials, bituminous materials, and applications in railway materials.