The Effect of Carbon Nano-tube on the Fatigue Life of Asphalt Mixtures

Document Type : Research Paper


1 Professor, Department of Civil Engineering, Iran University of Science and Technology, Tehran, Iran

2 MSc. Grad., Department of Civil Engineering, Iran University of Science and Technology, Tehran, Iran

3 Ph.D. Candidate, Department of Civil Engineering, Iran University of Science and Technology, Tehran, Iran


The fatigue cracks are observed in asphalt surfaces much more than ruts. This paper deals with the influence of carbon nano-tube on the fatigue life of asphalt mixtures. These samples are made up of the slabs cut by the asphalt cutting saw. Fatigue beams contain 0, 0.3, 0.6, 0.9, 1.2, and 1.5 percent of Carbon Nano-tube. The fatigue experiment was conducted using a 4-point semi-sinusoidal loading on a flexural beam for a constant strain (600 micro-strain) at 20oC. The end of these samples, fatigue life is assumed to be when 50% reduction in the initial rigidity happens. The results show that with an increase in the percentage of carbon nano-tube in the fatigue samples, the fatigue life of asphalt mixtures and the amount of cumulative dissipated energy increase noticeably, and the rate of damage propagation is reduced. Also rut depth, Fracture Energy density, Marshall Stability, Indirect Tensile strength have been improved excellently.


- Brown, E. R., Kandhal, P. S. and Zhang, J. (2001) ”Performance testing for hot mix asphalt”, Report 01-05, November, NCAT.
- Castro, M. and Sanchez, J. (2008) “Estimation of asphalt concrete fatigue curves – a damage theory approach”, Construction and Building Materials, 22 (6),pp.1232–8.
- Choi, Y. K., Collop, A. C. and Thom, N. H. (2002) “A simple damage approach to modelling fatigue in bituminous materials”, Bearing Capacity of Roads”, Railways and Airfields, pp. 103-11.
- Chow, W. (2003) “Development of thermoplastic nanocomposites based on blends of polyamide and polypropylene”, Material and Mineral Resources Engineering, University Sains, Malaysia.
- Collins, J. H., Boudin, M. G., Gelles, R. and Berker, A.(1991) “Improved performance of paving asphalts by polymer modification”, Proc. Association of Asphalt Pavement Technology, 60, pp.43–79.
- Danial, N. (2011) “Laboratory evaluation of fatigue performance for warm mix asphalt vs. hot mix asphalt”, A thesis for the degree of master of science, Iran University of Science and Technology ( In Farsi language).
- Ghaffarpour Jahromi, S., Khodaii, A. (2009) “Effects of Nanoclay on rheological properties of bitumen binder”, Construction and Building Materials, 23, pp.2894–2904.
- Ghile, D. (2005) “Effects of nanoclay modification on rheology of bitumen and on performance of asphalt mixtures”, M.Sc. Thesis, Delft University of Technology.
- Gonzlez, J. M., Canet, J. M., Oller, S. and Mir, R. (2006) “A viscoplastic constitutive model with strain rate variables for asphalt mixtures – numerical simulation”, Computers and Materials Science, 38, pp.543–60.
- Hosseini, H. R. A., Darban, A. K. and Fakhri, M. (2009) “The effect of geosynthetic reinforcement on the damage propagation rate of asphalt pavements”, Scientia Iranica, Vol. 16, No. 1, pp. 26-32.
- Kanitpong, K. and Bahia H.(2005) Relating adhesion and cohesion of asphalts to the effect of moisture on laboratory performance of asphalt mixtures”. Transport Res Rec, 1901, pp.33–43.
- Khattak, M.J. (2011) “On the carbon nanofiber modified asphalt binders”, 90th Transportation Research Board Annual Meeting.
- Kuchibhatla, S.V.N.T., Karakoti, A.S., Debasis, B. and Seal S. (2007)”One dimensional Nanostructured Materials ”, Progress in Materials Science, 52,pp. 699 - 913.
- Lu, X. and Isacsson, U.(2001) “Modification of road bitumens with thermoplastic polymers”, Polym Test, 20, pp.77–86.
- Radziszewski, P. (2007) “Modified asphalt mixtures resistance to permanent deformations”. Journal of Civil Engineering and Management”, 4, pp.307–315.
- Roberts, F. L., Kandhal, P. S., Ray Brown, E., Lee, D.Y. and Kennedy, T.W. (1996) “Hot mix asphalt materials”, Mixture Design and Construction. 2nd ed. NAPA Education Foundation.
- Sadeghpour Galooyak, S., Dabir, B. (2010) “Rheological properties and storage stability of bitumen/SBS/montmorillonite Composites”, Construction and Building Materials, 24, pp. 300–307.
- Sengoz, B. and Isikyakar, G. (2007) “Evaluation of the properties and microstructure of SBS and EVA polymer modified bitumen”, Construction Building Materials, 22, pp.1897–905.
- Zhanping, Y. and Julian, M. B. (2011) “Nanoclay-modified asphalt materials: Preparation and characterization”, Construction and Building Materials, 25, pp.1072–1078.
- Ziari, H., Rahim-of, K., Fazilati, M., Goli, A. and Farahani, H. (2012) “Evaluation of different conditions on the mixing bitumen and carbon nano-tubes”, International Journal of Civil & Environmental Engineering, 12, pp.53-59