A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Develop Methodologies/Protocols to Assess Cracking Potential of Asphalt Mixtures Using Accelerated Pavement Testing
Methodologies were identified which involved the use of the accelerated pavement aging system (APAS) to induce age-hardening of the pavement in the accelerated pavement testing (APT) facility and achieve stiffness profiles consistent with those observed in field-aged pavements, followed by loading with and without wander using the heavy vehicle simulator (HVS). These approaches would allow us to evaluate several hypotheses associated with the development and accumulation of damage and its effect on top-down cracking, as well as hypotheses associated with the energy-based cracking criteria developed in earlier FDOT research efforts. Properties determined from FWD tests on the pavement sections and Superpave IDT tests performed on asphalt concrete cores obtained from the pavements at different aging levels have been used to predict stresses, strains, and energies due to applied wheel loads. Excellent correspondence has been observed between predicted and measured strains, strains measured using gates epoxied to the surface of the pavement are excellent tools for evaluation of pavement load response, but are not good indicators of the development of damage.
Develop Methodologies/Protocols to Assess Cracking Potential of Asphalt Mixtures Using Accelerated Pavement Testing
Methodologies were identified which involved the use of the accelerated pavement aging system (APAS) to induce age-hardening of the pavement in the accelerated pavement testing (APT) facility and achieve stiffness profiles consistent with those observed in field-aged pavements, followed by loading with and without wander using the heavy vehicle simulator (HVS). These approaches would allow us to evaluate several hypotheses associated with the development and accumulation of damage and its effect on top-down cracking, as well as hypotheses associated with the energy-based cracking criteria developed in earlier FDOT research efforts. Properties determined from FWD tests on the pavement sections and Superpave IDT tests performed on asphalt concrete cores obtained from the pavements at different aging levels have been used to predict stresses, strains, and energies due to applied wheel loads. Excellent correspondence has been observed between predicted and measured strains, strains measured using gates epoxied to the surface of the pavement are excellent tools for evaluation of pavement load response, but are not good indicators of the development of damage.
Develop Methodologies/Protocols to Assess Cracking Potential of Asphalt Mixtures Using Accelerated Pavement Testing
2007
141 pages
Report
No indication
English
Construction Equipment, Materials, & Supplies , Highway Engineering , Pavements , Asphalt mixtures , Cracking , Loading , Consolidation rutting , Nondestructive tests , Response analysis , Methodologies , Protocols , Age hardening , Modeling , Strain , Tables (Data) , Mixture tests , Energy ratio , Accelerated pavement testing (APT) , Accelerated pavement aging system (APAS) , Falling weight deflectometer (FWD) , Heavy vehicle simulator (HVS) , Top down cracking , Dissipated Creep Strain Energy (DCSE) , Superpave IDT
Rut Initiation Mechanisms in Asphalt Mixtures as Generated Under Accelerated Pavement Testing
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Modeling Asphalt Pavement Rutting under Accelerated Testing
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Rut Initiation Mechanisms in Asphalt Mixtures as Generated Under Accelerated Pavement Testing
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| Taylor & Francis Verlag | 2018