Polymer modified asphalt
Polymer modified asphalt
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DOI：
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发表时间：
2001
影响因子：
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通讯作者：
Yvonne Becker;M. Méndez;Y. Rodríguez
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文献类型：
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作者：
Yvonne Becker;M. Méndez;Y. Rodríguez
考虑到委内瑞拉石油工业作为当前世界沥青生产的领导者之一的国际地位，了解聚合物改性沥青(PMA)在当今市场提供的机会来源是很重要的。在此基础上，概述了主要用于铺装工业的聚合物沥青结合料的特点。重点阐述了组成、配方与粘结剂性能的关系，以及粘结剂性能与混合料性能的关系。虽然聚合物改性似乎是改善沥青性能的最佳解决方案，但这些体系存在三个主要问题：a)沥青聚合物相容性差(影响体系稳定性)，b)沥青加工和使用过程中粘度较高，c)成本较高。本研究还讨论了这些问题，并提供了一些实地经验。总结了常用的聚合物改性沥青粘结剂(丁苯橡胶(SBS)、再生胶、聚乙烯(PE)、无规聚丙烯(APP))的优缺点。
Considering the international position of Venezuelan oil industry as one of the leaders of the current world asphalt production, it is important to be aware of the source of opportunities that polymer modified asphalt (PMA) offers in today’s market. Based on that, this paper presents an overview of the characteristics of polymerasphalt binders, mostly used in the paving industry. Emphasis is being made on the relationships of composition and formulation with the properties of the binder, and the relationships of the binder properties and performance of the mixture. Although polymer modification seems to be the best solution to improve asphalt properties, these systems present three main problems: a) poor asphalt polymer compatibility (which influences the stability of the system), b) higher viscosities during asphalt processing and application, and c) higher cost. These issues are also covered in the present study, altogether with some field experiences. A summary of advantages and disadvantages of most used polymers to modify asphalt binders (styrene-butadiene-styrene (SBS), reclaimed tire rubber, polyethylene (PE), and atactic polypropylene (aPP)) is also provided.