Field and laboratory permeability of asphalt concrete pavements

Awadalla, Moustafa; Halim, A O Abd El; Hassan, Yasser; Bashir, Imran; Pinder, Frank

doi:10.1139/cjce-2016-0143

Cited by 10 publications

(10 citation statements)

References 19 publications

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“…It is well documented that not all rainfall falling onto urban surfaces is converted into direct runoff (Hollis and Ovenden 1988;Wiles and Sharp 2008;Awadalla et al 2017), yet there is uncertainty about what causes losses from urban catchments and how to estimate these losses in lieu of monitored rainfall-runoff data. Not all surfaces are connected to the surface water drainage system and instead only a "Directly Connected Impervious Area" (DCIA) or "Effective Impervious Area" (EIA) has a hydraulic connection to a surface water drainage system (Carmen et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Understanding the impact of the built environment mosaic on rainfall-runoff behaviour

Macdonald

2022

Journal of Hydrology

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Section: Introductionmentioning

confidence: 99%

Understanding the impact of the built environment mosaic on rainfall-runoff behaviour

Macdonald

2022

Journal of Hydrology

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“…Generally, the void ratio of porous asphalt pavement is more than 18% and is even as high as 23% or 25% to ensure drainage. Researches have been carried out to investigate the permeability of porous asphalt mixtures [8,9]. Past experience has shown that a large amount of flow occurred in the horizontal direction in coarse superpave mixes with thick lifts, whereas fine mixes with thin lifts tended to have more of a vertical flow [10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Effect of Clogging on the Permeability of Porous Asphalt Pavement

Chen

Geng

et al. 2020

Advances in Materials Science and Engineering

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The purpose of this paper is to report on the drainage of porous asphalt pavement evaluation method suited for use in analyzing clogging effect. To preliminarily reveal the decrease in permeability caused by clogging of permeable asphalt pavement, an innovative device was proposed to evaluate the anisotropy of permeability influenced by clogging, and the maximum drainage capacity without surface ponding can be obtained when the supplied water was controlled. Then, finite element models for asphalt pavements with hydromechanical coupling were proposed based on porous media theory and Biot’s theory. The variation in pore water pressure was simulated by considering the decrease in voids and the increase in clogging grains. The results indicate that the internally retained water should not be ignored because the semiconnected voids were filled with water rapidly at the beginning of permeability tests. To avoid surface ponding, the drainage capacity coefficient (DCC) can be used to evaluate the maximum drainage capacity (MDC) influenced by clogging. Moreover, the pore water pressure increased due to the reduction in voids and a high level of clogging. In addition, the peak value of pore water pressure is also affected by the upper-layer height of the pavement. Under the action of clogging and driving load, a reasonable thickness of the upper layer and a drainage evaluation should be considered to improve road safety.

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“…of different field experiments have shown that AMIR produces pavements with less water permeability (Igboke et al 2020;Awadalla 2015;Abd El Halim 2016) and more uniform compaction along and across the mat while achieving the required density with fewer passes compared to conventional compaction using steel rollers (Raab 2019;Omar Abd El Halim 2015;Awadalla et al 2017;Chelliah 2019).…”

Section: List Of Illustrationsmentioning

confidence: 99%

“…Awadalla et al (2017) conducted a study to evaluate pavement field permeability and core extraction at eight sites in eastern Ontario, in Canada. They performed indirect tensile strength, lab permeability, and relative density tests on field-recovered cores, and their findings highlight the relationships between the relative density, permeability, and indirect tensile strength of ACP.…”

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confidence: 99%

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Effect of Asphalt Pavement Compaction on Interlayer Bonding and Tensile Strength of Asphalt Concrete under Low Temperatures and Temperature Cycling

Afjadi¹

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The maintenance and rehabilitation of highway network systems are major road agency expenditures. The combined effects of environmental conditions, traffic loading, moisture, construction quality, and maintenance contribute significantly to rates of pavement deterioration and the length of asphalt pavement life. One of the important performance parameters for asphalt concrete pavements, particularly in cold regions, is the capability to withstand cyclic temperature changes. Such temperature cycles, especially those that alternate above and below freezing, lead to mechanical stresses that can cause failure. This research presents the results and major findings of an experimental investigation performed on rectangular asphalt slab samples extracted from newly constructed pavements of actual highway projects, rather than gyratory-compacted samples that are created in the laboratory. The first phase (Test Series A) studied the effects of temperature cycles and compaction equipment on interlayer bonds by using a custom-made temperature cycling testing machine that allows the reproduction of several temperature cycles over a relatively short time (7-10 days). The second phase (Test Series B) focused on resistance to tensile stresses under cold temperatures. During Test Series B, a custom-made direct tensile strength test was employed to estimate the tensile strength of slab samples at different temperatures (i.e., 0°C, -10°C, or -20°C) for single-and double-layer samples. Test Series B included 171 asphalt samples 300mm long by 100mm wide, with thicknesses of 50mm for single layers and 100mm for double layers. I would like to express my great appreciation to Professor A. O. Abd El Halim for kindly accepting me as his PhD student. His guidance, support and valuable input were treasured throughout my studies at Carleton University. I am very sad that he passed away on September 19, 2019, and that I could not defend my thesis while he was still with us. Special thanks to Professor Yasser Hassan, Chair of the Department of Civil and Environmental Engineering and my current thesis supervisor, for his support, advice, valued comments, and constructive criticisms. I would like to acknowledge Carleton University for their financial support, and RW Tomlinson Limited for providing the asphalt specimens. I also thank Stanley Conley, Jason Arnott, and Stephen Vickers for their participation and assistance in operating the environmental chamber, design and construction of the testing tables and help during the test series; they greatly enabled and supported my work and helped me get results of better quality. The author is grateful to Dr. Bashar Dhahir for his assistance in the modelling and statistical analysis. I would like to acknowledge the experimental works completed jointly with Graziela Girardi, P.Eng at early stages of my studies at Carleton

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Field and laboratory permeability of asphalt concrete pavements

Cited by 10 publications

References 19 publications

Understanding the impact of the built environment mosaic on rainfall-runoff behaviour

Understanding the impact of the built environment mosaic on rainfall-runoff behaviour

Effect of Clogging on the Permeability of Porous Asphalt Pavement

Effect of Asphalt Pavement Compaction on Interlayer Bonding and Tensile Strength of Asphalt Concrete under Low Temperatures and Temperature Cycling

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