Comprehensive analysis of compatibility and low-temperature rheological properties of SBS modified asphalt binder using entropy weight-TOPSIS method

IF 7.4 1区工程技术 Q1 CONSTRUCTION & BUILDING TECHNOLOGY

Construction and Building Materials Pub Date : 2024-12-27 DOI:10.1016/j.conbuildmat.2024.139364

Xingxu Zhang , Fucheng Guo , Bo Li , Wanying Liu , Kaicheng Zhang , Zhenzheng Liu

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引用次数: 0

Abstract

A self-developed compatibilizer was added into SBS to realize its adequate dissolution and increase the SBS modified asphalt binder (SBSMA) compatibility. The compatibility and the low-temperature rheological properties and of SBSMA containing compatibilizer were investigated by combining the multiple perspectives. Moreover, the comprehensive evaluation of the compatibility and rheological properties for SBSMA was conducted using entropy weight-TOPSIS method, and correlation analysis between them was also analyzed using Kendall correlation analysis. Results show that the compatibility and low-temperature rheological properties of SBSMA is greatly increased by adding compatibilizer according to multiple evaluation indicators and comprehensive evaluation. The compatibility of the asphalt binder system modified by SBS is best when the compatibilizer dosage is 4 %. The SBSMA system presented the optimal low-temperature rheological properties with the compatibilizer dosage of 5 %. Moreover, the compatibility of SBSMA and low temperature performance are strongly correlated based on entropy weight-TOPSIS and the Kendall correlation analysis, where the Kendall's coefficient of concordance of the model is 1.0.

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用熵权- topsis法综合分析SBS改性沥青粘结剂的相容性和低温流变性能

为实现SBS改性沥青粘结剂的充分溶解，提高SBS改性沥青粘结剂（SBSMA）的相容性，在SBS中加入了自行研制的增容剂。采用多角度相结合的方法研究了含增容剂SBSMA的相容性和低温流变性能。采用熵权topsis法对SBSMA的相容性和流变性能进行综合评价，并采用Kendall相关分析对两者进行相关性分析。结果表明，通过多种评价指标和综合评价，添加相容剂后，SBSMA的相容性和低温流变性能得到较大提高。增容剂用量为4 %时，SBS改性沥青粘结剂体系的相容性最好。增容剂用量为5 %时，SBSMA体系的低温流变性能最佳。此外，基于熵权topsis和Kendall相关分析，SBSMA的兼容性与低温性能呈强相关，其中模型的Kendall一致性系数为1.0。

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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.