Abstract
Thermal cracking of asphalt roads usually occurs in cold regions and areas with frequent temperature changes. Hence, a complete comprehensive understanding about the behaviour of bituminous binders at very low temperatures is required for predicting the performance of the asphalt road. Since conventional methods have not shown reliable results evaluating polymer modified binders, the fracture toughness test (FTT) has been developed as an alternative method for the determination of the low temperature behaviour. This work presents a complementary study where the influence of different parameters on the results in the experimental FTT procedure is analysed. It is shown that preparation and conditioning of the beams before the test can have a significant effect on the fracture temperature. In order to achieve repetitive results in the assessment of different types of binders, the experimental procedure has been improved.
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© 2013 RILEM
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Bueno, M., Hugener, M., Partl, M.N. (2013). Fracture Toughness Testing Aspects for Assessing Low Temperature Behaviour of Bituminous Binders. In: Kringos, N., Birgisson, B., Frost, D., Wang, L. (eds) Multi-Scale Modeling and Characterization of Infrastructure Materials. RILEM Bookseries, vol 8. Springer, Dordrecht. https://doi.org/10.1007/978-94-007-6878-9_1
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DOI: https://doi.org/10.1007/978-94-007-6878-9_1
Publisher Name: Springer, Dordrecht
Print ISBN: 978-94-007-6877-2
Online ISBN: 978-94-007-6878-9
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