MECHANICAL PERFORMANCE OF ASPHALT MIXTURE CONTAINING CUP LUMP RUBBER

Authors

  • Norfazira Mohd Azahar Universiti Teknologi Malaysia, 81310 UTM Johor Bahru, Johor, Malaysia
  • Norhidayah Abdul Hassan Universiti Teknologi Malaysia, 81310 UTM Johor Bahru, Johor, Malaysia
  • Ramadhansyah Putra Jaya Universiti Malaysia Pahang, Pekan, Pahang, Malaysia
  • Hasanan Md. Nor Universiti Teknologi Malaysia, 81310 UTM Johor Bahru, Johor, Malaysia
  • Mohd Khairul Idham Mohd Satar Universiti Teknologi Malaysia, 81310 UTM Johor Bahru, Johor, Malaysia
  • Nordiana Mashros Universiti Teknologi Malaysia, 81310 UTM Johor Bahru, Johor, Malaysia
  • Azman Mohamed Universiti Teknologi Malaysia, 81310 UTM Johor Bahru, Johor, Malaysia

DOI:

https://doi.org/10.11113/jt.v81.13857

Keywords:

Cup lump rubber, CMA mixture, resilient modulus, permanent deformation, tensile strength, aging

Abstract

The use of cup lump rubber as an additive in asphalt binder has recently become the main interest of the paving industry. The innovation helps to increase the natural rubber consumption and stabilize the rubber price. This study evaluates the mechanical performance of cup lump rubber modified asphalt (CMA) mixture in terms of resilient modulus, dynamic creep and indirect tensile strength under aging conditions. The CMA mixture was prepared using dense-graded Marshall-designed mix and the observed behavior was compared with that of conventional mixture. From the results, both mixtures passed the volumetric properties as accordance to Malaysian Public Work Department (PWD) specification. The addition of cup lump rubber provides better resistance against permanent deformation through the enhanced properties of resilient modulus and dynamic creep. Furthermore, the resilient modulus of CMA mixture performed better under aging conditions.  

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Published

2019-09-22

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Section

Science and Engineering

How to Cite

MECHANICAL PERFORMANCE OF ASPHALT MIXTURE CONTAINING CUP LUMP RUBBER. (2019). Jurnal Teknologi, 81(6). https://doi.org/10.11113/jt.v81.13857