Article of RILEM TC 278-CHA: evaluation of self-healing properties of asphalt binders—outcomes and challenges

IF 3.9 3区工程技术 Q2 CONSTRUCTION & BUILDING TECHNOLOGY

Materials and Structures Pub Date : 2025-08-26 DOI:10.1617/s11527-025-02762-2

O. Baglieri, R. Aurilio, F. Miglietta, L. Tsantilis, H. Baaj

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引用次数: 0

Abstract

This paper describes part of the activities conducted by RILEM Technical Committee 278-CHA (Crack-Healing of Asphalt Pavement Materials) Task Group 2a. The main objective of the TG2a was to explore and evaluate the experimental methods and criteria for the assessment of self-healing of asphalt binders. The work was developed in two phases. In the first phase, various existing healing test protocols were scrutinized, encompassing time-sweeps with single rest periods (TS-SRP), time-sweeps with multiple rest periods (TS-MRP), and linear amplitude sweeps with rest periods LASH). The protocols were evaluated and compared across different laboratories. The outcomes of interlaboratory testing led to the selection of the LASH-based approach. However, it was acknowledged that new insights and modifications were necessary due to the possible occurrence of biasing effects during the amplitude sweep. Such issues were addressed in the second phase of research, in which a modified LASH-based procedure underwent further investigation using various methods for data analysis, including approaches based on dissipated energy and the viscoelastic continuum damage model.

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沥青粘结剂自愈性能的评价——成果与挑战

本文描述了RILEM技术委员会278-CHA（沥青路面材料裂缝修复）任务组2a进行的部分活动。TG2a的主要目的是探索和评估沥青粘合剂自愈性的实验方法和标准。这项工作分两个阶段进行。在第一阶段，审查了各种现有的愈合测试方案，包括单休息期时间扫描（TS-SRP）、多休息期时间扫描（TS-MRP）和休息期线性振幅扫描（LASH）。这些方案在不同的实验室进行了评估和比较。实验室间测试的结果导致选择基于lash的方法。然而，由于在振幅扫描期间可能出现偏置效应，人们承认有必要进行新的见解和修改。这些问题在第二阶段的研究中得到了解决，在第二阶段的研究中，改进的基于lash的程序进行了进一步的研究，使用各种方法进行数据分析，包括基于耗散能量和粘弹性连续损伤模型的方法。

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来源期刊

Materials and Structures 工程技术-材料科学：综合

CiteScore

6.40

自引率

7.90%

发文量

222

审稿时长

5.9 months

期刊介绍： Materials and Structures, the flagship publication of the International Union of Laboratories and Experts in Construction Materials, Systems and Structures (RILEM), provides a unique international and interdisciplinary forum for new research findings on the performance of construction materials. A leader in cutting-edge research, the journal is dedicated to the publication of high quality papers examining the fundamental properties of building materials, their characterization and processing techniques, modeling, standardization of test methods, and the application of research results in building and civil engineering. Materials and Structures also publishes comprehensive reports prepared by the RILEM’s technical committees.