Abstract
Crack healing is characterised by the recovery of stiffness in asphalt concrete after a period of rest. Micro damage occurs in asphalt pavement layers when there is continuous reduction in its stiffness modulus, which causes the formation of micro-cracks. This paper presents an evaluation into the healing potential of coarse and fine dense-graded asphalt mixes. The binders investigated were Modified Bitumen (MB) and two types of Trinidad Lake Asphalt (TLA) having penetration values of 60/70, 60/75 and 40/55 respectively. Evaluation of asphalt healing through the Indirect Tensile Stiffness Modulus (ITSM) were done, before cracking, after cracking and after healing periods of 1, 4 and 8 hrs at healing temperatures of 35 °C and 60 °C. Greater healing was exhibited in TLA-60/75 fine graded mixes at the lower temperature of 35 °C, while greater healing was seen in the MB-60/70 fine grade mixes at 60 °C, however, for the TLA coarse mixes greater healing was observed at 60 °C. TLA-60/75 specimens showed increased healing for greater rest periods while MB-60/70 and TLA-40/55 mixes varied with rest periods. The reduction of micro-damage in a pavement, greatly defers the propagation of macro cracks, extends serviceability, reduces maintenance costs and increases the sustainability of the pavement.
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References
Roque, R., Simms R., Yu C, Koh, C., Lopp, G.: Development of a test method that will allow evaluation and quantification of the effects of healing on asphalt mixture. No. BDK75 977–26. University of South Florida. College of Engineering (2012)
Grant, T.P.: Determination of Asphalt Mixture Healing Rate Using the Superpave Indirect Tensile Test. Doctoral Dissertation. University of Florida USA (2001)
Sarsam, S.I., Husain, H.: Impact of micro crack healing on resilient characteristics of asphalt concrete. Appl. Res. J. 2, 362–369 (2016)
Kok, B.V., Kuloglu, N.: The effects of different binders on mechanical properties of hot mix asphalt. Int. J. Sci. Technol. 2(1), 41–48 (2007)
Qiu, J., Van de Ven, M., Molenaar, A.: Crack-healing investigation in bituminous materials. J. Mater. Civ. Eng. 25(7), 864–870 (2012)
Kliewer, J.E., Zeng, H., Vinson, T.S.: Aging and low-temperature cracking of asphalt concrete mixture. J. Cold Reg. Eng. 10(3), 134–148 (1996)
Shen, S., **n, L.: Fracture healing properties of asphaltic material under controlled damage. J. Mater. Civ. Eng. 26(2), 275–282 (2013)
Feng, X.J., Xu, D.Z.: Research on application technology of TLA modified asphalt mixture. Adv. Mater. Res. Trans Tech Publ. 194, 1069–1072 (2011)
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Leon, L.P. (2022). Cracking Healing Evaluation of HMA Using Indirect Tensile Stiffness Modulus Test. In: Di Benedetto, H., Baaj, H., Chailleux, E., Tebaldi, G., Sauzéat, C., Mangiafico, S. (eds) Proceedings of the RILEM International Symposium on Bituminous Materials. ISBM 2020. RILEM Bookseries, vol 27. Springer, Cham. https://doi.org/10.1007/978-3-030-46455-4_64
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DOI: https://doi.org/10.1007/978-3-030-46455-4_64
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