Pavement Performance with Carbon Black and Natural Rubber (Latex)
Saad Abdulqader Ali1, Ismail bin Yusof2, Madi Hermadi3, Marwan B.S. Alfergani4, Abdalla Ab Sinusi5
1Saad Abdulqader Ali, Civil Engineering, University Tun Hussein Onn, Batu Pahat, Malaysia.
2Ismail bin Yusof, Civil Engineering, University Tun Hussein Onn, Batu Pahat, Malaysia.
3Madi Hermadi , Civil Engineering, University Tun Hussein Onn, Batu Pahat, Malaysia.
4Marwan B.S. Alfergani, Civil Engineering, University Tun Hussein Onn, Batu Pahat, Malaysia.
5Abdualla Ab Sinusi Saiah, Technology Management, University Tun Hussein Onn Malaysia, Batu Pahat, Malaysia.
Manuscript received on January 02, 2013. | Revised Manuscript received on January 29, 2013. | Manuscript published on February 28, 2013. | PP: 124-129 | Volume-2 Issue-3, February 2013. | Retrieval Number: C1010022313 /2013©BEIESP
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: Many studies have been done to find other alternative material to use as modifiers in asphalt mixes on the improvement of its properties and highway quality. In this research Carbon Black and Natural Rubber (Latex) have been used as bitumen modifiers, bitumen is sensitive to rate of traffic load and temperature susceptibility. Therefore, bitumen modification has become the main factor to improve the hot mix asphalt properties and permanent deformation (Rutting).The use of carbon black and natural rubber in this project was identified to have the potential of becoming a modifier in HMA mixes due to the elastic behavior and in reducing the rutting potential. This study presents the viability of carbon black and natural rubber as an additive in bitumen as binder and hot mix asphalt concrete with different ratios of 10,15,20% CB and 1,3,5% NR blended separately and with each other. The behaviors of the two modifiers were investigated by comprehensive laboratory testing and evaluation. The DSR was used to determine the rheology of the modifiers with bitumen and Superpave mix design method was used to determine the optimum bitumen content and one aggregate gradation was considered under this investigation. The performance of carbon black and natural rubber mixtures at 40° C was determined by the dynamic creep test and indirect tensile test. It was observed that the addition of carbon black and natural rubber gave better overall performance in the bituminous mixes. The stiffness modulus decreases as the addition of carbon black and natural rubber increase. However, the performance of 10% CB gave better stiffness modulus whereas, the stiffness is higher. The creep values are also the lowest with 10% CB. Thus, this shows carbon black and natural rubber may contribute toward better flexible roads in the future.
Keywords: Carbon Black, Natural Rubber (Latex), Polymers, Modified Bitumen.