Hot mix asphalt (HMA) properties using natural rubber latex (NRL)-modified bitumen

  • Authors

    • Mohd Amin Shafii
    • Sian Jiun Chia
    • Nuryantizpura Mohamad Rais
    https://doi.org/10.14419/ijet.v7i4.21571

  • Hot mix asphalt (HMA) is one of the common flexible pavement used in Malaysia. Due to the increasing in the volume of traffic nowadays, unmodified HMA has begun to be insufficient in providing the strength to resist the increased traffic load. Therefore, many research have been done to improve HMA by modifying the bitumen. This study aims to investigate the properties of the HMA using natural rubber latex (NRL) modified bitumen. The optimum bitumen content (OBC) of the NRL-Modified HMA was determined by using Marshall mix design method and the properties of the NRL-Modified HMA was investigated based on the strength and volumetric properties. Besides that, a few tests were conducted in order to determine the properties of the bitumen and aggregates used. The properties of bitumen determined based on its softening point, ductility and penetration while the properties of the aggregated were determined based on its apparent specific gravity, aggregate impact value and shape (flakiness index and elongation index). From the result, it was found that the addition 9% of NRL by the total weight of modified bitumen had altered the volumetric properties and decrease the strength properties of the HMA.

  • References

    1. [1] Sawant, P. A., & Kulkarn, S. S. (2014). Comparative Study of Bituminous Mixes Modified by EVA and Crumb Rubber. International Journal on Recent and Innovation Trends in Computing and Communication, 3(5), 3261–3265.

      [2] Azahar, N. M., Hassan, N. A., Jaya, R. P., Kadir, M. A. A., Yunus, N. Z. M., & Mahmud, M. Z. H. (2016). An Overview on Natural Rubber Application for Asphalt Modification. International Journal of Agriculture, Forestry and Plantation, 2, 212–218.

      [3] British Standards Institution (1990). BS 812 Part 112-1990. London: British Standard Institution.

      [4] ASTM International (2014). ASTM D 7370. West Conshohocken, PA: ASTM International.

      [5] British Standards Institution (1989). BS 812 Part 105-1989. London: British Standard Institution.

      [6] ASTM International (2011). ASTM D 36 / D 36 M-09. West Conshohocken, PA: ASTM International.

      [7] ASTM International (2011). ASTM D 113-07. West Conshohocken, PA: ASTM International.

      [8] ASTM International (2011). ASTM D 5-06. West Conshohocken, PA: ASTM International.

      [9] Mohd, A. S., Calvin, L. Y. V., Nuryantizpura, M. R., & Amminudin, A. L. (2017). Effect of Blending Temperature and Blending Time on Physical Properties of NRL-Modified Bitumen. International Journal of Applied Engineering Research, 12(13), 3844-3849.

      [10] Jabatan Kerja Raya (2005). Standard Specification for Road Works. Kuala Lumpur: Jabatan Kerja Raya.

      [11] Jabatan Kerja Raya (2008). Standard Specification for Road Works. Kuala Lumpur: Jabatan Kerja Raya.

      [12] Chen, J. S., Liao, M. C., & Shiah, M. S. (2002). Asphalt Modified by Styrene-Butadiene-Styrene Triblock Copolymer: Morphology and Model. Journal of Materials in Civil Engineering, 14(3), 224–229. https://doi.org/10.1061/(ASCE)0899-1561(2002)14:3(224).

      [13] Swetha, D. V., & Rani, K. D. (2014). Effect of Natural Rubber on the Properties of Bitumen and Bituminious Mixes. International Journal of Civil Engineering Technology, 5(10), 9–21.

      [14] Igwe, E. A., Orji, C. U., Eme, D. B., & Okparanma, R. N. (2008). Modifying the Voids Properties of a Trafficked Pavement Using Rubber Latex. Journal of Food, Agriculture and Environment, 6(1), 182–185.

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  • How to Cite

    Shafii, M. A., Chia, S. J., & Rais, N. M. (2018). Hot mix asphalt (HMA) properties using natural rubber latex (NRL)-modified bitumen. International Journal of Engineering & Technology, 7(4), 3241-3244. https://doi.org/10.14419/ijet.v7i4.21571