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环氧化天然橡胶改性热拌沥青的工程特性

Engineering characterisation of epoxidized natural rubber-modified hot-mix asphalt.

作者信息

Al-Mansob Ramez A, Ismail Amiruddin, Yusoff Nur Izzi Md, Rahmat Riza Atiq O K, Borhan Muhamad Nazri, Albrka Shaban Ismael, Azhari Che Husna, Karim Mohamed Rehan

机构信息

Sustainable Urban Transport Research Centre (SUTRA), Department of Civil and Structural Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, UKM, Bangi, Selangor, Malaysia.

Department of Mechanical and Materials Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, UKM, Bangi, Selangor, Malaysia.

出版信息

PLoS One. 2017 Feb 9;12(2):e0171648. doi: 10.1371/journal.pone.0171648. eCollection 2017.

DOI:10.1371/journal.pone.0171648
PMID:28182724
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC5300135/
Abstract

Road distress results in high maintenance costs. However, increased understandings of asphalt behaviour and properties coupled with technological developments have allowed paving technologists to examine the benefits of introducing additives and modifiers. As a result, polymers have become extremely popular as modifiers to improve the performance of the asphalt mix. This study investigates the performance characteristics of epoxidized natural rubber (ENR)-modified hot-mix asphalt. Tests were conducted using ENR-asphalt mixes prepared using the wet process. Mechanical testing on the ENR-asphalt mixes showed that the resilient modulus of the mixes was greatly affected by testing temperature and frequency. On the other hand, although rutting performance decreased at high temperatures because of the increased elasticity of the ENR-asphalt mixes, fatigue performance improved at intermediate temperatures as compared to the base mix. However, durability tests indicated that the ENR-asphalt mixes were slightly susceptible to the presence of moisture. In conclusion, the performance of asphalt pavement can be enhanced by incorporating ENR as a modifier to counter major road distress.

摘要

路面病害会导致高昂的养护成本。然而，随着对沥青性能和特性的深入了解以及技术的发展，铺路技术人员能够研究引入添加剂和改性剂的益处。因此，聚合物作为改善沥青混合料性能的改性剂变得极为流行。本研究调查了环氧化天然橡胶（ENR）改性热拌沥青的性能特征。使用湿法制备的ENR - 沥青混合料进行了试验。对ENR - 沥青混合料的力学测试表明，混合料的回弹模量受测试温度和频率的影响很大。另一方面，尽管由于ENR - 沥青混合料弹性增加，高温下车辙性能下降，但与基础混合料相比，中温下疲劳性能有所改善。然而，耐久性测试表明，ENR - 沥青混合料对水分的存在略显敏感。总之，通过掺入ENR作为改性剂来应对主要路面病害，可以提高沥青路面的性能。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4c84/5300135/88bd2a0c43c7/pone.0171648.g010.jpg
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