Evaluation of permanent deformation of unmodified and rubber-reinforced SMA asphalt mixtures using dynamic creep test

Herda Yati Katman, Mohd Rasdan Ibrahim, Mohamed Rehan Karim, Nuha Salim Mashaan, Suhana Koting

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

This paper presents the evaluation of permanent deformation of rubber-reinforced SMA asphalt mixtures by using dynamic creep test. The effect of trans-polyoctenamer as a cross-linking agent in permanent deformation of rubberized mixtures was also evaluated. Dynamic creep test was conducted at different stress levels (200 kPa, 400 kPa) and temperatures (40°C, 50°C). Permanent deformation parameters such as dynamic creep curve, ultimate strain, and creep strain slope (CSS) were used to analyse the results. Finally, the creep behaviour of the specimens was estimated by the Zhou three-stage creep model. The results show that crumb rubber and trans-polyoctenamer significantly affected the parameters especially at high stress and temperatures. Consistent findings were observed for all permanent deformation parameters. Moreover, based on Zhou model, it was concluded that resistance to permanent deformation was improved by application of crumb rubber and trans-polyoctenamer.

Original languageEnglish
Article number247149
JournalAdvances in Materials Science and Engineering
Volume2015
DOIs
Publication statusPublished - 01 Jan 2015

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Asphalt mixtures
Rubber
Creep
Temperature

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Engineering(all)

Cite this

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abstract = "This paper presents the evaluation of permanent deformation of rubber-reinforced SMA asphalt mixtures by using dynamic creep test. The effect of trans-polyoctenamer as a cross-linking agent in permanent deformation of rubberized mixtures was also evaluated. Dynamic creep test was conducted at different stress levels (200 kPa, 400 kPa) and temperatures (40°C, 50°C). Permanent deformation parameters such as dynamic creep curve, ultimate strain, and creep strain slope (CSS) were used to analyse the results. Finally, the creep behaviour of the specimens was estimated by the Zhou three-stage creep model. The results show that crumb rubber and trans-polyoctenamer significantly affected the parameters especially at high stress and temperatures. Consistent findings were observed for all permanent deformation parameters. Moreover, based on Zhou model, it was concluded that resistance to permanent deformation was improved by application of crumb rubber and trans-polyoctenamer.",
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Evaluation of permanent deformation of unmodified and rubber-reinforced SMA asphalt mixtures using dynamic creep test. / Katman, Herda Yati; Ibrahim, Mohd Rasdan; Karim, Mohamed Rehan; Salim Mashaan, Nuha; Koting, Suhana.

In: Advances in Materials Science and Engineering, Vol. 2015, 247149, 01.01.2015.

Research output: Contribution to journalArticle

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AU - Katman, Herda Yati

AU - Ibrahim, Mohd Rasdan

AU - Karim, Mohamed Rehan

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AU - Koting, Suhana

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