A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Evaluating the effect of overlay thickness in thermally induced reflective cracking for airport pavements through full-scale and laboratory testing
In order to delay reflection cracks, a thicker overlay is sometimes applied than that required for structural purposes alone. Although this option provides better thermal insulation to the concrete, which helps to reduce thermal movements, the performance is still somewhat empirical. This paper presents a comprehensive Federal Aviation Administration (FAA) study of full-scale and laboratory tests to evaluate the impact of overlay thickness on the initiation and propagation of reflection cracks. It was observed that increasing overlay thickness significantly delayed the occurrence of reflection cracks, however not reduced the crack progression in the horizontal direction. Once a crack initiated, it can penetrate a thin overlay in a very short period of time. In addition, a set of strain, thermally induced fatigue, and fracture parameters were used to derive ratios between the full-scale and laboratory tests, and a conceptual two-stage failure model was proposed. Findings from this study are of immediate assistance to the future FAA airport pavement research.
Evaluating the effect of overlay thickness in thermally induced reflective cracking for airport pavements through full-scale and laboratory testing
In order to delay reflection cracks, a thicker overlay is sometimes applied than that required for structural purposes alone. Although this option provides better thermal insulation to the concrete, which helps to reduce thermal movements, the performance is still somewhat empirical. This paper presents a comprehensive Federal Aviation Administration (FAA) study of full-scale and laboratory tests to evaluate the impact of overlay thickness on the initiation and propagation of reflection cracks. It was observed that increasing overlay thickness significantly delayed the occurrence of reflection cracks, however not reduced the crack progression in the horizontal direction. Once a crack initiated, it can penetrate a thin overlay in a very short period of time. In addition, a set of strain, thermally induced fatigue, and fracture parameters were used to derive ratios between the full-scale and laboratory tests, and a conceptual two-stage failure model was proposed. Findings from this study are of immediate assistance to the future FAA airport pavement research.
Evaluating the effect of overlay thickness in thermally induced reflective cracking for airport pavements through full-scale and laboratory testing
Int. J. Pavement Res. Technol.
Mandal, Tirupan (author) / Yin, Hao (author) / Ji, Richard (author)
International Journal of Pavement Research and Technology ; 13 ; 423-433
2020-07-01
11 pages
Article (Journal)
Electronic Resource
English
Full-scale test of thermally induced reflective cracking in airport pavements
| Taylor & Francis Verlag | 2015
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| Springer Verlag | 2018
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