Evaluation of durability and functional performance of porous polyurethane mixture in porous pavement
Evaluation of durability and functional performance of porous polyurethane mixture in porous pavement
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DOI：
10.1016/j.jclepro.2018.03.297
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发表时间：
2018-07-01
影响因子：
11.1
通讯作者：
Ding, Yangmin
中科院分区：
文献类型：
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作者：
Chen, Jun;Yin, Xiaojing;Ding, Yangmin
透水性路面在交通安全和减少噪音方面有显著的好处。本研究旨在探讨多孔聚氨酯混合料（PPM）作为多孔路面中开级配摩擦层（OGFC）的替代材料的耐久性和功能性能。采用双组分聚氨酯制备了不同粘结剂含量和骨料粒径的PPM。通过堵塞试验和渗透率测定评价了PPM的抗堵塞性能。考虑到不同的温度、湿度和冷冻条件，使用Cantabro损失测试来评估PPM的抗散开性。在实验室装置中，使用测量的温度和橡胶接触噪声来研究PPM的冷却和安静效果。堵塞试验结果表明，与OGFC相比，PPM具有更好的抵抗由土壤悬浮液过滤引起的颗粒相关堵塞的能力。同样，渗透性测试结果表明，PPM在高温车辙试验中保持较高的渗透性，而OGFC的渗透性显着下降。Cantabro损耗测试结果表明，在不同测试条件下，聚氨酯含量为6%且最大粒径为9.5 mm的PPM显示出比OGFC小得多的松散潜力。聚氨酯含量的增加和较大的骨料粒径可以提高PPM的抗松散性。在相同的日照条件下，PPM试件内部温度低于沥青混合料试件和OGFC试件，PPM试件的吸声性能优于OGFC试件，尤其是对轮胎振动噪声的吸声性能。(C)2018爱思唯尔有限公司版权所有。
Porous pavements bring significant benefits in traffic safety and noise reduction. This study aims to investigate durability and functional performance of Porous Polyurethane Mixture (PPM) as an alternative to Open-Graded Friction Course (OGFC) in porous pavements. Two-component polyurethane was used to prepare PPM with different binder contents and aggregate sizes. The anti-clogging performance of PPM was evaluated through clogging test and permeability measurements. The raveling resistance of PPM was evaluated using Cantabro loss test considering different temperature, moisture, and freezing conditions. The cooling and quiet effects of PPM were investigated using the measured temperature and rubber contact noise in the laboratory setup. The clogging test results indicate that the PPM has better resistance to particle-related clogging caused by filtration of soil suspensions as compared to OGFC. Similarly, the permeability testing results show that the PPM maintains high permeability during the rutting test at high temperatures; while the permeability of OGFC decreases significantly. The Cantabro loss test results indicate that the PPM with 6% polyurethane content and the maximum particle size of 9.5 mm shows much less raveling potential than OGFC at different testing conditions. The increase of polyurethane content and the larger aggregate size can improve raveling resistance of PPM. The internal temperature of PPM specimen is lower than that of asphalt mixture specimen and OGFC specimen under the same sunlight exposure, On the other hand, the PPM has the greater acoustic absorption than OGFC, especially for tire vibration noise. (C) 2018 Elsevier Ltd. All rights reserved.