Effects of Carbon Fibre on Performance Properties of Asphalt Mixtures

IF 0.6 4区工程技术 Q4 ENGINEERING, CIVIL

Baltic Journal of Road and Bridge Engineering Pub Date : 2020-06-25 DOI:10.7250/bjrbe.2020-15.472

T. Geçkil, P. Ahmedzade

引用次数: 13

Abstract

In this study, the effects of carbon fibre on improving the performance characteristics of asphalt mixtures were investigated. To this end, four percentages of carbon fibre (0%, 0.3%, 0.5%, and 0.7% by weight of bitumen) were used as an additive in asphalt mixtures. The mechanical properties of prepared mixture specimens were investigated using tests such as Marshall Stability and flow, Indirect Tensile Stiffness Modulus, Creep Stiffness, Indirect Tensile Strength, and moisture resistance. The results of tests applied to asphalt mixtures showed that the carbon fibre additive increased the resistance to shear stress by 25%, the fatigue life by 51% at 40 °C and the permanent deformation resistance by 2.25 times at 60 °C. It also improved the resistance of mixtures to moisture damage by increasing the durability and cohesion of asphalt mixtures. Experimental results indicated that the carbon fibre provided a positive contribution to the performance properties of asphalt pavements.

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碳纤维对沥青混合料性能的影响

本文研究了碳纤维对改善沥青混合料性能特性的影响。为此，在沥青混合物中使用了四个百分比的碳纤维(按沥青重量计为0%、0.3%、0.5%和0.7%)作为添加剂。通过马歇尔稳定性和流动、间接拉伸刚度模量、蠕变刚度、间接拉伸强度和抗湿性等测试来研究制备的混合试样的力学性能。试验结果表明，碳纤维添加剂可使沥青混合料在40℃下抗剪切应力提高25%，疲劳寿命提高51%，在60℃下抗永久变形能力提高2.25倍。它还通过增加沥青混合料的耐久性和粘聚性来提高混合料的抗湿性。试验结果表明，碳纤维对沥青路面的性能有积极的贡献。

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

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;