Evaluating the Relationship between Permeability and Moisture Damage of Asphalt Concrete Pavements

Tarefder, Rafiqul A.; Ahmad, Mohiuddin

doi:10.1061/(asce)mt.1943-5533.0001129

Cited by 56 publications

(18 citation statements)

References 6 publications

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“…However, during the service life it may be affected by several factors such as aging, moisture, freeze-thaw etc. Effect of moisture on the tensile strength of AC has been explored in the literature [11,16]; Tarefder and Ahmed, [21]; [7]. Effect of freeze-thaw on the tensile strength of AC has also been investigated [10,12].…”

Section: Introductionmentioning

confidence: 99%

A study of asphalt aging using Indirect Tensile Strength test

Islam

Hossain

Tarefder

2015

Construction and Building Materials

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Section: Introductionmentioning

confidence: 99%

A study of asphalt aging using Indirect Tensile Strength test

Islam

Hossain

Tarefder

2015

Construction and Building Materials

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“…Dynamic water scouring damage is a major form of pavement distress that causes government to undergo high maintenance cost [1][2][3]. As the asphalt pavement is a layered structure, pores are easily formed at the joint between layers.…”

Section: Introductionmentioning

confidence: 99%

Measurement and Evaluation for Interbedded Pore Water Pressure of Saturated Asphalt Pavement under Vehicle Loading

Chen

Wang²,

Guo

et al. 2020

Applied Sciences

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Dynamic water scouring damage is the main cause of pavement structure damage, and the main reason for dynamic water scouring damage is the rapid change of pore water pressure caused by vehicle load. Numerical simulation is a commonly used pore water pressure test technology, but its accuracy is not high, and the test data are very different to actual values. In this study, a pore water pressure test method is designed, which has the advantages of less disturbance to the pavement structure and the measured data are closer to the true pore water pressure value of the pavement structure. Measurement data show that the pore water pressure gradually increases with increasing vehicle speed, and the pore water pressure response time becomes shorter. The pore water pressure response time is greater than vehicle loading time. Moreover, the phenomenon of periodic decay of pore water pressure with time is analyzed based on hydrodynamic water hammer theory. The empirical formula of maximum positive pressure with speed and the empirical formula of Abp at different speeds were obtained.

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“…Reporta que asfaltos más viscosos son menos propensos al daño por humedad y adicionalmente afirma, al igual que [38], que adiciones de cal mejoran la resistencia a este mecanismo de daño. Para intentar entender con mayor claridad el fenómeno, algunos investigadores proponen que el daño por humedad sea acoplado con un modelo de envejecimiento del asfalto o la mezcla [39], así como un modelo en donde se tenga en cuenta el paso de agua y aire por medio de las mezclas (permeabilidad) [40]. En síntesis, el daño por humedad debe ser acoplado a modelos en donde se tenga en cuenta la influencia del agua junto con otros elementos que conforman el medio ambiente como son el aire, la temperatura, los rayos ultravioleta, entre otros, para así poder evaluar la influencia de cada uno de ellos (desde el punto de vista mecánico y químico), de manera separada sobre el ligante y las mezclas [41].…”

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