Influence of Aggregate Gradation on Clogging Characteristics of Porous Asphalt Mixtures

Martin, William D.; Putman, Bradley J.; Neptune, Andrew I.

doi:10.1061/(asce)mt.1943-5533.0000975

Cited by 47 publications

(28 citation statements)

References 11 publications

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“…These results are in agreement with previous studies that observed higher infiltration capacities in clogged PC mixtures [9] and higher infiltration capacity reductions in PA mixtures [20]. The higher infiltration capacity of PC mixtures compared to PA mixtures, together with the different void structure of the two materials caused by the different mixture designs, could be the cause of the higher infiltration capacities and lower clogging rates observed in PC mixtures, as reported by previous works [42,43]. Grouping the results obtained depending on the material used and sediment load, it can be observed that the tested PC mixtures performed better in terms of infiltration capacity than the PA ones for all the air void contents (Figure 4a) and clogging scenarios (Figure 4b).…”

Section: Resultssupporting

confidence: 82%

“…The deposition of 500 g/m 2 of sediments proved to be enough to reduce the infiltration capacity to the range of 63%-79% for PA mixtures and 57%-86% in PC mixtures on average, depending on the air void content. The infiltration capacity is normally higher in PC mixtures than in PA mixtures for the scenarios tested, probably due to the different gradations used for the two materials, which leads to different pore properties, and may result in different infiltration capacities and clogging dynamics for similar air void contents, according to previous studies [41][42][43].…”

Section: Resultsmentioning

confidence: 72%

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Laboratory Assessment of the Infiltration Capacity Reduction in Clogged Porous Mixture Surfaces

et al. 2016

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Permeable pavements have been used widely across the world to manage urban stormwater. The hydrological behaviour of permeable surfaces is a complex process affected by many factors, such as rainfall intensity, rainfall duration, pavement geometrical conditions, and clogging level of the permeable surface, amongst others. This laboratory study was carried out to assess the influence of clogging level and rainfall intensity on the infiltration capacity of porous mixture surfaces used in Permeable Pavement Systems (PPS). Porous Concrete (PC) and Porous Asphalt (PA) mixtures with different air void contents (15%, 20%, and 25%) were subject to different clogging scenarios by using varying sediment loads (0, 500, and 1000 g/m 2 ). Permeability experiments were carried out for each clogging scenario through a new rainfall simulator specially developed, tailored, and calibrated for the laboratory simulation of a wide range of rainfall events. Permeability measurements were taken under all different scenarios as a result of the combination of the different rainfall events (50, 100, and 150 mm/h) simulated over the specimens of porous mixtures and the sediment loads applied to them. The results showed that the PC mixtures tested perform better than the PA ones in terms of infiltration capacity, showing less potential for clogging and being more easily cleaned by the wash-off produced by the simulated rainfall events.

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Section: Resultssupporting

confidence: 82%

Section: Resultsmentioning

confidence: 72%

Laboratory Assessment of the Infiltration Capacity Reduction in Clogged Porous Mixture Surfaces

et al. 2016

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“…As time passes, the sediments are deposited on the pavement surface and cause blockages. According to [9] this makes the pore clogged and do not serve as a proper function of PA. PA becomes impermeable and works like a conventional mix such as dense graded mix thus the PA advantages are no longer applicable. [10] Also mentioned that besides the particles clogging, the PA may also become clogged due to fraction and deterioration of the mastic inside the mixture.…”

Section: Literature Reviewmentioning

confidence: 98%

Influence of Warm Porous Asphalt on Permeability Reduction Due to Binder Flow

et al. 2016

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Warm mix asphalt (WMA) is a new technology in Malaysian context. The technology can help to reduce the global warming issues. In this research, the warm mix asphalt technology was used in porous asphalt pavement which is known as warm porous asphalt (WPA) mix. WPA loses permeability mainly due to clogging. Apart from typical clogging agents such as dust and tyre rubber, the binder flow is also another source of permeability reduction. The objective of this study was to investigate the binder flow phenomenon that affected the permeability reduction in WPA. To obtain the binder flow phenomenon, samples were conditioned at 35°C for 120 days. The different mixing and compaction temperatures with bitumen 60/70 + 3 % RH-WMA additive were used in preparing the samples. A falling head water permeameter was used to determine the permeability loss which is related to time and temperatures. The result from the permeability loss was significant to high mixing temperatures over time. Due to time, self-weight of the binder and high mixing temperature, the asphalt mastic start to flow down according to gravitational forces and finally the coefficient of permeability reduced, yet the time of flow increased. The outcome of this research indicated that the different temperatures during mixing and compaction were significant to the binder flow. Hence, the low mixing temperature using WMA technologies could reduce the clogging problem due to self-weight of the binder.

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“…Many field and laboratory investigations have been made regarding the clogging dynamics of permeable pavements. The long-term performance associated with particle clogging is typically influenced by a wide range of factors and local conditions, including pavement type and design [22][23][24]. Laboratory assessments conducted by Andrés-Valeri et al [22] indicated that porous concrete pavement showed less clogging potential than porous asphalt pavement due to its higher infiltration capacity and recovery from clogging.…”

Section: Introductionmentioning

confidence: 99%

Investigation of Particle-Related Clogging of Sustainable Concrete Pavements

2018

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Permeable pavement has been considered an effective low impact development (LID) strategy in attempts to mitigate the environmental impacts of natural surface depletion brought about by urbanization. A concern associated with the pavement’s hydraulic performance is its sensitivity to clogging. This study aims to investigate the permeability reduction due to particle-related clogging of pervious concrete (PC), a type of sustainable pavement surface. Permeability tests revealed that the flow within PC samples shows turbulence, and a nonlinear relationship between discharge velocity and hydraulic gradient is necessary to measure the permeability coefficient. Permeability loss due to particle-clogging is influenced by the size of both PC aggregates and clogging particles. Clogging with graded sand particles causes more severe reduction compared to single-sized sands.

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Influence of Aggregate Gradation on Clogging Characteristics of Porous Asphalt Mixtures

Cited by 47 publications

References 11 publications

Laboratory Assessment of the Infiltration Capacity Reduction in Clogged Porous Mixture Surfaces

Laboratory Assessment of the Infiltration Capacity Reduction in Clogged Porous Mixture Surfaces

Influence of Warm Porous Asphalt on Permeability Reduction Due to Binder Flow

Investigation of Particle-Related Clogging of Sustainable Concrete Pavements

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