A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Evaluation of Stiffness and Fatigue Using 2 Point Bending and Indirect Tensile Fatigue Tests
Flexural fatigue due to repeated traffic loading is a process of cumulative damage and one of the main failure modes of flexible pavement structures. To characterize fatigue resistance in asphalt mixtures, different methods, such as phenomenological, fracture mechanics, and dissipated-energy approaches, allied to different testing methods, such as simple flexure, diametral loading, and direct axial loading tests, are usually used. This paper presents a comparison of fatigue resistance obtained using indirect tensile fatigue test (ITFT) and 2 point bending (2PB) undertaken at the University of Nottingham (UK). A 20-mm Dense Bitumen Macadam (DBM) has been chosen for the laboratory study and different fatigue tests have been undertaken. Both 2PB and ITFT have been undertaken under different loading at 10 °C in stress and strain controlled mode to evaluate the properties of the mixtures (stiffness, dissipated energy, fatigue life, etc.).
Evaluation of Stiffness and Fatigue Using 2 Point Bending and Indirect Tensile Fatigue Tests
Flexural fatigue due to repeated traffic loading is a process of cumulative damage and one of the main failure modes of flexible pavement structures. To characterize fatigue resistance in asphalt mixtures, different methods, such as phenomenological, fracture mechanics, and dissipated-energy approaches, allied to different testing methods, such as simple flexure, diametral loading, and direct axial loading tests, are usually used. This paper presents a comparison of fatigue resistance obtained using indirect tensile fatigue test (ITFT) and 2 point bending (2PB) undertaken at the University of Nottingham (UK). A 20-mm Dense Bitumen Macadam (DBM) has been chosen for the laboratory study and different fatigue tests have been undertaken. Both 2PB and ITFT have been undertaken under different loading at 10 °C in stress and strain controlled mode to evaluate the properties of the mixtures (stiffness, dissipated energy, fatigue life, etc.).
Evaluation of Stiffness and Fatigue Using 2 Point Bending and Indirect Tensile Fatigue Tests
Maggiore, Cinzia (author) / Airey, Gordon (author)
2013 Airfield & Highway Pavement Conference ; 2013 ; Los Angeles, California, United States
Airfield and Highway Pavement 2013 ; 1030-1039
2013-06-18
Conference paper
Electronic Resource
English
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