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M. Jamek, E. Tschegg, R. Lugmayr:
"Mechanical and fracture-mechanical properties of geosynthetic reinforced asphalt systems";
Fatigue & Fracture of Engineering Materials & Structures, 21.3.2012 (2012), 1 - 10.

Geosynthetic interlayers in asphalt systems have become a convenient technology for lifetime prolongation in road construction engineering. Established testing methods for
characterizing construction materials can be used to describe and evaluate these innovative systems. This study compares three groups of asphalt interlayer systems (stress absorbing
membrane interlayer = SAMI, asphalt reinforcement, SAMI + asphalt reinforcement) represented by 10 different geosynthetic interlayers in terms of crack growth resistance
and strength. The results will be presented in relation to asphalt reference systems without interlayer. The mechanical and fracture-mechanical properties were determined by means
of the wedge splitting test (WST) according to Tschegg and partially by the pull-out test. Due to temperature dependences of the material properties of asphalt, the tests have been
performed at −10°C, 0°C and +10°C specimen temperature.

crack growth; fracture resistance; geosynthetic interlayer; pavement technology; crack growth; fracture resistance; geosynthetic interlayer; pavement technology;

http://dx.doi.org/10.1111/j.1460-2695.2011.01659.x