Experimental investigation of PP masks/PP-g-MAH/SBR polymer blends on the storage stability and low-temperature properties of modified bitumen

J. Lan, Z. Leng, R. Li

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

Abstract

Owing to the pandemic of COVID-19, tons of disposable masks have derived severe plastic disposal issues these years. One typical reuse avenue is recycling waste polypropylene (WPP) masks in large-scale asphalt pavement construction. Yet only a limited amount of research has been conducted to alleviate the phase segregation issues and the severe cracking distress that WPP brings to asphalt. This study explored the feasibility of using styrenebutadiene rubber (SBR) and maleic anhydride grafted PP (PP-g-MAH) in repurposing WPP in bitumen. The study aims to investigate its modification mechanisms and solve the bad performance that plastic bring to modified bitumen. The results indicate that adding SBR and PP-g-MAH can help PP distribute homogeneously in asphalt binder. Meanwhile, the low temperature anti-cracking performance is enhanced. This recycling method can reduce the quantity of indiscriminate disposal WPP masks and improve the properties of asphalt pavement.

Original languageEnglish
Title of host publicationAdvances in Functional Pavements - Proceedings of the 7th Chinese-European Workshop on Functional Pavements, CEW 2023
EditorsYuqing Zhang, Gordon Airey, Mujib Rahman, Haopeng Wang
PublisherCRC Press/Balkema
Pages62-66
Number of pages5
ISBN (Print)9781032480923
DOIs
Publication statusPublished - 15 Nov 2023
Event7th Chinese-European Workshop on Functional Pavements, CEW 2023 - Birmingham, United Kingdom
Duration: 2 Jul 20234 Jul 2023

Publication series

NameAdvances in Functional Pavements - Proceedings of the 7th Chinese-European Workshop on Functional Pavements, CEW 2023

Conference

Conference7th Chinese-European Workshop on Functional Pavements, CEW 2023
Country/TerritoryUnited Kingdom
CityBirmingham
Period2/07/234/07/23

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction

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