Mechanical and Fracture-Mechanical Properties of Asphalt-Concrete Interfaces

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Title: Mechanical and Fracture-Mechanical Properties of Asphalt-Concrete Interfaces

Author(s): E. K. Tschegg, J. Macht, M. Jamek, and J. Steigenberger

Publication: Materials Journal

Volume: 104

Issue: 5

Appears on pages(s): 474-480

Keywords: asphalt; bond; temperature; whitetopping

DOI: 10.14359/18903

Date: 9/1/2007

Abstract:
This paper deals with the testing and assessment of the bond behavior and the crack resistance of asphalt-concrete interfaces tested at different temperatures, which are necessary for the rehabilitation of rutted asphalt pavements with the so-called whitetopping technology. Different pretreatments of the interface were performed: without any treatment, using cement grout, using a combination of cement grout and synthetic dispersion, or using only synthetic dispersion. The mechanical and fracture mechanical properties were determined by means of the pullout test and a wedge splitting test. The tests were performed at temperatures of –10, 0, 10, and 22 °C (14, 32, 50, and 71.6 °F).


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