含再生沥青路面温拌沥青老化性能研究

IF 1 4区工程技术 Q4 ENGINEERING, CIVIL

Proceedings of the Institution of Civil Engineers-Transport Pub Date : 2022-09-20 DOI:10.1680/jtran.22.00014

W. M. Hasan, A. Sarkar

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引用次数: 1

摘要

研究了一种有机添加剂和化学添加剂对含再生沥青路面温拌沥青短期和长期老化性能的影响。进行了各种力学试验，包括动态蠕变、间接拉伸强度、半圆弯曲和弹性模量。结果表明，不添加添加剂的再生沥青路面混合料在未老化和老化过程中均表现出更高的流动数，表明其抗车辙性能更高。与含有有机添加剂的混合物相比，含有化学添加剂的混合物具有更高的抗湿敏感性。此外，含有化学添加剂的再生沥青路面混合料比含有再生沥青路面和有机添加剂的混合料表现出更高的断裂能，而有机添加剂在未老化和老化过程中表现出最高的弹性模量。

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Ageing properties of warm-mix asphalt containing reclaimed asphalt pavement

A study was undertaken to evaluate the influence of an organic and chemical additive on the short- and long-term ageing properties of warm-mix asphalt containing reclaimed asphalt pavement. Various mechanical tests, including dynamic creep, indirect tensile strength, semi-circular bending, and resilient modulus were conducted. The results indicated that the mixture containing reclaimed asphalt pavement without additives showed a higher flow number in both unageing and ageing processes, indicating higher resistance to rutting. The mixture containing the chemical additive demonstrated higher resistance to moisture susceptibility in comparison to the one with the organic admixture. Moreover, the mixtures containing recycled asphalt pavement and the chemical additive showed higher fracture energy than mixtures containing recycled asphalt pavement and the organic additive, while the latter showed the highest resilient modulus in the unageing and ageing process.

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来源期刊

Proceedings of the Institution of Civil Engineers-Transport 工程技术-工程：土木

CiteScore

2.60

自引率

0.00%

发文量

审稿时长

5 months

期刊介绍： Transport is essential reading for those needing information on civil engineering developments across all areas of transport. This journal covers all aspects of planning, design, construction, maintenance and project management for the movement of goods and people. Specific topics covered include: transport planning and policy, construction of infrastructure projects, traffic management, airports and highway pavement maintenance and performance and the economic and environmental aspects of urban and inter-urban transportation systems.