Laboratory Performance of Asphalt Rubber Mixtures

机译：沥青橡胶混合物的实验室性能

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Asphalt rubber mixtures are one of the most promising teehniques to extend the service life of asphalt pavement overlays. Asphalt rubber binder is composed of crumb rubber from reclaimed tires and conventional asphalt. The asphalt rubber binder can be obtained through wet process in two different systems: tire rubber-modified asphalt binder (produced at industrial plants) and continuous blending (produced in asphalt plants). This study presents a laboratory evaluation of asphalt rubber mixtures produced with different asphalt rubber binders, using gap and dense gradations. The mechanical behaviour of the mixtures studied was established through several laboratory tests (stiffness, fatigue and permanent deformation). Moreover, the morphologies of the crumb rubber and of the asphalt rubber binder were analysed through scanning micrographs. The rheology of the asphalt rubber binder was characterised in order to predict the mechanical behaviour of asphalt rubber mixtures.

机译：沥青橡胶混合物是延长沥青路面覆盖层使用寿命的最有希望的技术之一。沥青橡胶粘合剂由再生轮胎的碎屑橡胶和常规沥青组成。可以通过湿法在两种不同的系统中获得沥青橡胶粘合剂：轮胎橡胶改性的沥青粘合剂（工业工厂生产）和连续共混（沥青工厂中生产）。这项研究使用间隙和致密的渐变色对使用不同沥青橡胶粘合剂生产的沥青橡胶混合物进行了实验室评估。通过多种实验室测试（刚度，疲劳和永久变形）确定了所研究混合物的机械性能。此外，通过扫描显微照片分析了碎屑橡胶和沥青橡胶粘合剂的形态。表征沥青橡胶粘合剂的流变性能，以预测沥青橡胶混合物的机械性能。

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来源
《Asphalt Rubber 2009 Conference(2009国际橡胶沥青大会）》|2009年|369-385|共17页
会议地点 Nanjing(CN);Nanjing(CN)
作者
Liseane P.T.L. Fontes; Glicério Trichês; Jorge C. Pais; Paulo A.A. Pereira; Manuel J.C. Minhoto;
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作者单位

University Federal of Santa Catarina Department of Civil Engineering Florianópolis, SC, Brazil;

University Federal of Santa Catarina Department of Civil Engineering Florianópolis, SC, Brazil;

University of Minho Department of Civil Engineering, Campus of Azurém 4800-058 Guimarāes, Portugal;

University of Minho Department of Civil Engineering, Campus of Azurém 4800-058 Guimarāes, Portugal;

Polytechnic Institute of Braganca School of Management and Technology Campus de Santa Apolónia, Apartado 134, 5301-857 Braganca, Portugal;

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原文格式 PDF
正文语种 eng
中图分类
关键词
Asphalt Rubber; Fatigue; Permanent Deformation;

机译：沥青橡胶;疲劳;永久变形;

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Laboratory Performance of Asphalt Rubber Mixtures

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