Effects of material composition on mechanical and acoustic performance of poroelastic road surface (PERS)
Effects of material composition on mechanical and acoustic performance of poroelastic road surface (PERS)
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DOI：
10.1016/j.conbuildmat.2016.12.207
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发表时间：
2017-03-15
影响因子：
7.4
通讯作者：
Oeser, Markus
中科院分区：
文献类型：
--
作者：
Wang, Dawei;Schacht, Andreas;Oeser, Markus
多孔弹性路面（PERS）是由多孔沥青（PA）发展而来的一种低噪声路面。由于其高弹性，大的空气空隙含量和相互连接的空气空隙结构，PERS提供了良好的性能，在交通降噪。但是，它也面临着具有挑战性的问题，即抗松散性差，这限制了其更广泛的应用。本研究的主要目的是调查各种组成因素对PERS的抗解散性的影响，从而提供合适的PERS组成的建议。为此，设计了20种具有不同组成的PERS混合物，并在通过Aachener-Raveling-Tester（ARTe）进行抛光的各个阶段后进行表征。通过测量抛光后的材料损失来量化PERS的抗松散性，同时还测试了其声学性能和抗车辙性能以进行验证。结果表明，粘结剂含量和压实度是影响PERS抗松散性能的关键因素，为保证PERS的耐久性，建议最小粘结剂含量为15%，最小压实度为98%。(C)2017爱思唯尔有限公司版权所有。
Poroelastic road surface (PERS) is a type of low-noise pavement surface, which was derived from porous asphalt (PA). Because of its high elasticity, large air void content and an inter-connected air void structure, PERS provides excellent performance in traffic noise reduction. However, it also faces the challenging problem of poor ravelling resistance, which limits its more widespread application. The main objective of this study is to investigate the effects of various composition factors on the ravelling resistance of PERS so as to provide recommendations on appropriate PERS composition. To this end, 20 PERS mixtures with different compositions were designed and characterized after various stages of polishing applied by the Aachener-Raveling-Tester (ARTe). The ravelling resistance of PERS was quantified by measuring the material loss after polishing, while their acoustic performance and rutting resistance were also tested for validation purpose. It was concluded that binder content and degree of compaction are the critical factors affecting the ravelling resistance of PERS. To ensure sufficient durability, a minimum binder content of 15% and a minimum compaction degree of 98% were recommended. (C) 2017 Elsevier Ltd. All rights reserved.