An alternative analysis of indirect tensile test results for evaluating fatigue characteristics of asphalt mixes

2018 ◽  
Vol 166 ◽  
pp. 204-213 ◽  
Author(s):  
Manik Barman ◽  
Rouzbeh Ghabchi ◽  
Dharamveer Singh ◽  
Musharraf Zaman ◽  
Sesh Commuri
2013 ◽  
Vol 303-306 ◽  
pp. 2495-2500
Author(s):  
Chang Jun Sun ◽  
Shao Xu Huang ◽  
Ning Tang ◽  
Pan Pan ◽  
Shao Peng Wu

With the self-diagnosis function of the self-monitoring asphalt concrete, we can evaluate the health status of pavement according to feedback on the electrical signals when it is under variation load. In this paper, indirect tensile test and flexural modulus test were used to study the low-temperature properties of self-monitoring asphalt concrete. The test results show that the performance of self-monitoring asphalt concrete has a strong sense of temperature. The result of low-temperature properties provides a reference for the further study of self-monitoring asphalt concrete.


TRANSPORTES ◽  
2008 ◽  
Vol 16 (1) ◽  
Author(s):  
Lélio Antônio Teixeira Brito ◽  
Jorge Augusto Pereira Ceratti ◽  
Daniel Ramos Victorino

<p>Os ensaios de compressão diametral são amplamente usados no Brasil para determinação das propriedades mecânicas de misturas asfálticas, tanto através de ensaios monotônicos para determinação da resistência à tração, quanto sob carregamentos cíclicos para determinação do módulo de resiliência e da vida de fadiga. Este trabalho teve como objetivo mostrar que com instrumentação adequada destes ensaios, indicadores adicionais àqueles usualmente determinados podem ser obtidos. A energia mobilizada durante o ensaio de resistência à tração, bem como o monitoramento da rigidez ao longo do ensaio de fadiga e a defasagem medida entre o pulso de carga e o deslocamento no ensaio de módulo de resiliência, mostram-se promissores para este propósito.</p><p><em><strong>Abstract</strong> Indirect tensile test (IDT) are broadly used in Brazil for the assessment of mechanical properties of asphalt mixes, not only under monotonic loading to determine the tensile strength, but also under cyclic loading to determine resilient modulus and fatigue life. This study tries to demonstrate that with adequate instrumentation of these tests, additional indicators to those usually determined are possible to be obtained. The mobilized energy during the IDT test, as well as the monitoring of the stiffness during the fatigue test and the phase lag measured between load and displacement pulses in the resilient modulus test are promising for this purpose. </em></p>


Sign in / Sign up

Export Citation Format

Share Document