再生沥青路面对发泡沥青混合料性能的影响

IF 0.6 4区工程技术 Q4 ENGINEERING, CIVIL

Baltic Journal of Road and Bridge Engineering Pub Date : 2018-03-27 DOI:10.3846/BJRBE.2018.383

S. S. Kar, A. Swamy, D. Tiwari, P. Jain

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引用次数: 9

摘要

近年来，泡沫沥青技术与再生沥青路面的应用在世界范围内越来越受欢迎。再生沥青路面泡沫沥青混合料的力学响应受组成材料性能和骨料级配的显著影响。本文介绍了一项研究的结果，其中符合印度规范的发泡沥青混合物进行了评估。为此，使用不同百分比的再生沥青路面和沥青制备了泡沫沥青混合物。首先，对初沥青的发泡特性进行了评价，优选出最佳的含水量和发泡温度。第二阶段进行混合料设计，优化不同再生沥青路面比例的泡沫沥青混合料中泡沫沥青的含量。最后，对这些泡沫沥青混合料的力学性能进行了评价。实验结果表明，沥青的性质、沥青用量和再生沥青路面对泡沫沥青和泡沫混合料的性能有显著影响。在不同的混合料中，含有50%再生沥青路面的混合料在弹性模量和抗湿损伤试验中表现出最好的效果。含有80%再生沥青路面的混合料也显示出可接受的强度和抗水敏感性。因此，有可能设计高质量的沥青混合料，使用更高的再生沥青路面百分比，满足所需的体积和期望的性能标准。

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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Impact of recycled asphalt pavement on properties of foamed bituminous mixtures

In recent years, the use of foamed bitumen technology along with Reclaimed Asphalt Pavement is gaining popularity across the world. The mechanical response of foamed bitumen mixtures containing reclaimed asphalt pavement is significantly influenced by constituent material properties and aggregate gradation. This article presents results from a study where foamed bitumen mixtures conforming to Indian specifications were evaluated. For this purpose, foamed bitumen mixtures using a different percentage of reclaimed asphalt pavement and bitumens were prepared. Initially, the foaming characteristics of virgin bitumens were evaluated to optimize for optimum water content and foaming temperature. In the second stage, mixture design was conducted to optimize for foamed bitumen content in foamed bitumen mixtures containing a different percentage of reclaimed asphalt pavement. Finally, these foamed bitumen mixtures were evaluated for their mechanical properties. The results from this laboratory study indicated properties of foamed bitumen and foamed mixtures are significantly influenced by properties of bitumen, the quantity of bitumen, and reclaimed asphalt pavement. Among the different mixtures, a mixture containing 50% reclaimed asphalt pavement exhibited best results in resilient modulus and resistance to moisture damage tests. A mixture containing 80% reclaimed asphalt pavement also shows acceptable strength and resistance to water susceptibility. Thus, it is possible to design high-quality bituminous mixes using higher reclaimed asphalt pavement percentages, which meet the required volumetric and desired performance criteria.

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来源期刊

Baltic Journal of Road and Bridge Engineering 工程技术-工程：土木

CiteScore

2.10

自引率

9.10%

发文量

审稿时长

>12 weeks

期刊介绍： THE JOURNAL IS DESIGNED FOR PUBLISHING PAPERS CONCERNING THE FOLLOWING AREAS OF RESEARCH: road and bridge research and design, road construction materials and technologies, bridge construction materials and technologies, road and bridge repair, road and bridge maintenance, traffic safety, road and bridge information technologies, environmental issues, road climatology, low-volume roads, normative documentation, quality management and assurance, road infrastructure and its assessment, asset management, road and bridge construction financing, specialist pre-service and in-service training;