Use of Domestic Waste Polyethylene as a Bitumen Modifier in Bituminous Pavement Applications

Materials Science Forum Pub Date : 2024-03-05 DOI:10.4028/p-lc2bt4

Mitali Saharia, Kh.Lakshman Singh

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Abstract

The present study evaluated the use of domestic waste polyethylene (PE) in the applications of bituminous pavement. This study investigates the performance of the mixes using different waste PE percentages, i.e., 1%, 2%, 3%, 4% and 5%. It is observed that the softening point and elastic recovery value increase with PE content increases. The penetration index (PI) and temperature susceptibility of binders were evaluated. Adding PE to bitumen shows an improvement in the temperature susceptibility of the modified binders. The Marshall Stability value of bitumen containing 3% PE is higher at 69.65% than virgin binder stability. When 3% PE modified bitumen to the mixes, its indirect tensile strength (ITS) is 70.44 % higher than the conventional mix. The tensile strength ratio (TSR) value improved from 62% (unmodified binder) to 91.18% (modified binder) at 3% PE content, which is 47% higher than the conventional mixture. It indicates that the moisture susceptibility of mixes using PE is higher than conventional mix. Additionally, the mix deformation resistance with 3% PE was found to be 68.75% higher than the mix made with the unmodified binder. The study found that the bituminous mixes using PE have shown higher effectiveness in the properties such as stability, indirect tensile strength, rutting resistance, etc. of the mixes. It indicates that bituminous mixes with modified binders with PE provide higher resistance to permanent deformation.

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在沥青路面应用中使用生活垃圾聚乙烯作为沥青改性剂

本研究评估了家用废聚乙烯（PE）在沥青路面中的应用。本研究调查了使用不同废聚乙烯比例（即 1%、2%、3%、4% 和 5%）的混合料的性能。研究发现，随着 PE 含量的增加，软化点和弹性恢复值也随之增加。对粘合剂的渗透指数（PI）和温度敏感性进行了评估。在沥青中添加聚乙烯可改善改性粘合剂的温度敏感性。含 3% PE 的沥青的马歇尔稳定性值为 69.65%，高于原始粘结剂的稳定性。在混合料中添加 3% PE 改性沥青后，其间接抗拉强度（ITS）比传统混合料高 70.44%。PE 含量为 3% 时，拉伸强度比（TSR）值从 62%（未改性粘结剂）提高到 91.18%（改性粘结剂），比传统混合料高 47%。这表明使用聚乙烯的混合料的湿敏性高于传统混合料。此外，研究还发现，使用 3% PE 的混合料的抗变形能力比使用未改性粘结剂的混合料高 68.75%。研究发现，使用聚乙烯的沥青混合料在稳定性、间接抗拉强度、抗车辙等性能方面表现出更高的功效。这表明，使用聚乙烯改性粘结剂的沥青混合料具有更强的抗永久变形能力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Materials Science Forum

CiteScore

1.20

自引率

0.00%

发文量