Behavior of Reclaimed Polyethylene Modified Asphalt Cement for Paving Purposes
Behavior of Reclaimed Polyethylene Modified Asphalt Cement for Paving Purposes
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DOI：
10.1061/(asce)mt.1943-5533.0000235
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发表时间：
2011-06-01
影响因子：
3.2
通讯作者：
Veeraragavan, A.
中科院分区：
文献类型：
--
作者：
Punith, V. S.;Veeraragavan, A.
本文研究了用生活垃圾中回收的低密度聚乙烯手提袋回收聚乙烯（PE）对80/100道路沥青水泥进行改性的方法。详细介绍了聚乙烯改性粘结剂的制备过程以及粘结剂性能随共混温度和共混时间的变化。对不同PE共混物进行的各种测试的结果表明增强的粘合剂性能，如改善的储存稳定性、耐老化性、降解性和温度敏感性。观察到在给定温度下的粘度随着在粘合剂中加入PE而增加。动态剪切流变仪测试结果表明，PE改性的粘合剂（当受到相同的应力时）经历比纯沥青更低的应变;此外，随着PE含量的增加，PE改性的粘合剂的tan δ值显著降低。结果发现，在改性沥青中5%的PE含量是足够的增强粘合剂性能的研究。DOI：10.1061/（ASCE）MT.1943-5533.0000235。(C)2011年，美国土木工程师协会。
The present paper deals with the procedure for modification of 80/100-paving grade asphalt cement using reclaimed polyethylene (PE) derived from low-density polyethylene carry bags collected from domestic waste. The details of the preparation of the PE-modified binder and the results on variation of binder properties with blending temperature and blending time are presented. Results of various tests carried out on the different PE blends indicated enhanced binder properties like improved storage stability, resistance to aging, degradation, and temperature susceptibility. It is observed that viscosity at a given temperature increases with the addition of PE in the binder. Dynamic shear rheometer test results revealed that PE-modified binders (when subjected to the same stress) experienced lower strains than the neat asphalt; in addition, tan delta values of PE-modified binders considerably decreased as the PE content was increased. It was found that 5% PE content in modified asphalt by weight is adequate in terms of enhanced binder properties studied. DOI: 10.1061/(ASCE)MT.1943-5533.0000235. (C) 2011 American Society of Civil Engineers.