Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The Effectiveness of Using the Overlay Tester Setup to Evaluate the Performance of Asphalt Mixtures against Reflective Cracking
Reflective cracking is common distress when hot-mix asphalt (HMA) overlays are constructed on top of a pre-cracked base. Cracks on existing base gradually propagate upward because of traffic loading and/or temperature variation, reach surface course, and result in reflective cracking. Previous studies demonstrated that Texas Transportation Institute overlay tester (OT) could effectively simulate the effect of temperature variation, which is considered as the leading mechanism causing reflective cracking in the field. In this study, the effectiveness of using the OT test setup to mimic the field and evaluate the performance of various HMAs against reflective cracking is assessed based on various aspects found in the literature. It was concluded that OT is the most suitable equipment to study thermally induced reflective cracking in the laboratory. Additionally, potential modifications to improve the OT setup is proposed, which is expected to provide a more representative performance evaluation of mixtures against reflective cracking.
The Effectiveness of Using the Overlay Tester Setup to Evaluate the Performance of Asphalt Mixtures against Reflective Cracking
Reflective cracking is common distress when hot-mix asphalt (HMA) overlays are constructed on top of a pre-cracked base. Cracks on existing base gradually propagate upward because of traffic loading and/or temperature variation, reach surface course, and result in reflective cracking. Previous studies demonstrated that Texas Transportation Institute overlay tester (OT) could effectively simulate the effect of temperature variation, which is considered as the leading mechanism causing reflective cracking in the field. In this study, the effectiveness of using the OT test setup to mimic the field and evaluate the performance of various HMAs against reflective cracking is assessed based on various aspects found in the literature. It was concluded that OT is the most suitable equipment to study thermally induced reflective cracking in the laboratory. Additionally, potential modifications to improve the OT setup is proposed, which is expected to provide a more representative performance evaluation of mixtures against reflective cracking.
The Effectiveness of Using the Overlay Tester Setup to Evaluate the Performance of Asphalt Mixtures against Reflective Cracking
Idris, Ipshit I. (Autor:in) / Sadek, Husam (Autor:in) / Hassan, Marwa (Autor:in) / Berryman, Charles (Autor:in) / Hossain, Mohammad I. (Autor:in)
Tran-SET 2020 ; 2020 ; Albuquerque, New Mexico (Conference Held Virtually)
Tran-SET 2020 ; 173-184
12.01.2021
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
Overlay tester: a simple test to evaluate the reflective cracking resistance of asphalt mixtures
| British Library Conference Proceedings | 2004
Technical Sessions - Overlay Tester: A Simple Performance Test for Thermal Reflective Cracking
| Online Contents | 2005