Engineering characterization and environmental analysis of natural rubber latex modified asphalt mixture

Fardzanela Suwarto, Tony Parry, Nick Thom, Gordon Airey, Ahmed Abed, Taqia Rahman, Jarurat Wititanapanit

Research output: Contribution to journalArticlepeer-review


Natural Rubber Latex (NRL) has attracted considerable interest as a resource for renewable paving materials due to its potential to lessen environmental impact. In order to gain a thorough understanding of the performance of NRL, this study evaluated the mechanical properties and environmental impact of Stone Mastic Asphalt (SMA) mixtures with a 6.6% binder content, 5% air voids content, and 5% NRL by weight of binder. The performance of this NRL asphalt mixture was compared to a control asphalt mixture using a commercially available polymer modified Styrene Butadiene Styrene (SBS) binder. The performance of the asphalt mixtures, such as their tensile strength, stiffness modulus, and resistance to fatigue and rutting, as well as their Global Warming Potential (GWP) impact, were studied. The results indicate that the addition of NRL increased tensile strength, stiffness modulus, and fatigue life in comparison to a conventional, unmodified asphalt mixture but had slightly lower values in comparison to the SBS mixture. Moreover, in terms of environmental concern, life-cycle assessment reveals that NRL-modified mixtures are more sustainable than SBS-modified mixtures in terms of GWP value.
Original languageEnglish
Article number132970
Number of pages13
JournalConstruction and Building Materials
Issue number26
Early online date19 Aug 2023
Publication statusPublished - 26 Oct 2023

Bibliographical note

Copyright © 2023 Elsevier Ltd. This accepted manuscript version is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License [].

Funding : The study was sponsored and fully funded by Diponegoro University
[grant number 5172/UN7.P2/KP/2020].


  • natural rubber latex
  • asphalt
  • performance
  • life-cycle assessment


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