Laboratory investigation on rheological and anti-aging properties of five 70# grade asphalts from different producers

IF 2.3 3区工程技术 Q2 MECHANICS

Rheologica Acta Pub Date : 2024-11-25 DOI:10.1007/s00397-024-01475-7

Yong-xu Li, Xing-xing Zhu, Wei Du, Xiao-cun Liu, Yan-min Wang, Liang Fan, Jin Li

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引用次数: 0

Abstract

This research presents an assessment of the rheological and anti-aging characteristics of 70# grade asphalts sourced from various manufacturers. By utilizing a range of experimental techniques at both macroscopic and microscopic levels—including gel permeation chromatography (GPC), differential scanning calorimetry (DSC), dynamic shear rheometer (DSR), multi-stress creep recovery (MSCR), linear amplitude scanning (LAS), and bending beam rheometer (BBR) tests—the study investigates the performance of asphalt. Although all five 70# asphalts are classified under the same grade, their performance exhibits significant variation. A direct correlation has been established between microscopic attributes, such as molecular weight distribution and thermal stability, and macroscopic performance, which includes rheological behaviors and anti-aging properties. This study enhances our understanding of the factors influencing asphalt performance and provides guidance for selecting asphalt materials with improved characteristics for highway construction.

Graphical abstract

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不同厂家生产的5种70#级沥青流变性能和抗老化性能的室内研究

本研究对来自不同厂家的70#级沥青的流变学和抗老化特性进行了评估。通过利用宏观和微观层面的一系列实验技术——包括凝胶渗透色谱（GPC）、差示扫描量热法（DSC）、动态剪切流变仪（DSR）、多应力蠕变恢复（MSCR）、线性振幅扫描（LAS）和弯曲梁流变仪（BBR）测试——研究了沥青的性能。虽然所有5种70#沥青都属于同一等级，但它们的性能表现出显著的差异。微观属性（如分子量分布和热稳定性）与宏观性能（包括流变行为和抗老化性能）之间存在直接关联。本研究增强了我们对沥青性能影响因素的认识，为公路建设中选择性能更好的沥青材料提供指导。图形抽象

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Rheologica Acta 物理-力学

CiteScore

4.60

自引率

8.70%

发文量

审稿时长

3 months

期刊介绍： "Rheologica Acta is the official journal of The European Society of Rheology. The aim of the journal is to advance the science of rheology, by publishing high quality peer reviewed articles, invited reviews and peer reviewed short communications. The Scope of Rheologica Acta includes: - Advances in rheometrical and rheo-physical techniques, rheo-optics, microrheology - Rheology of soft matter systems, including polymer melts and solutions, colloidal dispersions, cement, ceramics, glasses, gels, emulsions, surfactant systems, liquid crystals, biomaterials and food. - Rheology of Solids, chemo-rheology - Electro and magnetorheology - Theory of rheology - Non-Newtonian fluid mechanics, complex fluids in microfluidic devices and flow instabilities - Interfacial rheology Rheologica Acta aims to publish papers which represent a substantial advance in the field, mere data reports or incremental work will not be considered. Priority will be given to papers that are methodological in nature and are beneficial to a wide range of material classes. It should also be noted that the list of topics given above is meant to be representative, not exhaustive. The editors welcome feedback on the journal and suggestions for reviews and comments."