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Performance Evaluation of Dense Graded Asphalt Mixture Modfied by Pyrolysis Carbon Black
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 Title & Authors
Performance Evaluation of Dense Graded Asphalt Mixture Modfied by Pyrolysis Carbon Black
Lee, Kwan-Ho;
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Using the pyrolyzed carbon black (PCB) from waste tires, the performance of 13 mm dense-graded hot mix asphalt was evaluated. The Marshall mix design was carried out and the measured optimal asphalt content was 5.8%. The impact resonant test was conducted to obtain the elastic modulus and damping ratio of the hot mix asphalt. The elastic modulus of HMA increased with increasing amount of PCB. On the other hand, there was no significant change in the damping ratio. The Marshall mix design, indirect tensile test, permanent deformation test, and program analysis were carried out. The strength ratio of the PCB modified asphalt mixtures was within 10%. More 10% of PCB was not good for the permanent deformation of hot mix asphalt. From the pavement design program, the use of 5% PCB in hot mix asphalt showed a decrease in the top-down crack, bottom-up crack, and permanent deformation. Judging from the limited test and analysis, the use of 5% PCB is good for enhancing the pavement performance.
Pyrolozed Carbon Black;Permanent Deformation;Top-Down Crack;Pavement Design;
 Cited by
Lee, K.H. (2014), "Permanent Deformation Properties of Porous Pavement Modified by Pyrolysis Carbon Black," J. of Korea Academic-Industrial Cooperation Society, Vol. 15, No. 6, pp. 3888-3893. crossref(new window)

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Kim, S. (2009), "Influence of a Flexibilizer on Physical Properties of Crumb Rubber Modified Asphalt Sealants," Korean Society of Roadway Engineers, Vol. 11, No. 3, pp. 32-40