Influence of Aggregate Gradation on the Performance Properties of Porous Asphalt Mixtures

Mansour, Talat Naji; Putman, Bradley J.

doi:10.1061/(asce)mt.1943-5533.0000602

Cited by 102 publications

(46 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…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: 93%

“…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: 54%

See 1 more Smart Citation

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

et al. 2016

View full text Add to dashboard Cite

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.

show abstract

Section: Resultssupporting

confidence: 93%

Section: Resultsmentioning

confidence: 54%

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

et al. 2016

View full text Add to dashboard Cite

show abstract

“…Aggregate gradation has a great impact on the structural and functional performance of porous asphalt mixture required for a specific application [22,23]. In order to investigate the effect of the nominal maximum aggregate sizes and aggregate gradations on air void properties for porous asphalt concrete, five kinds of commonly-used porous asphalt concretes (PAC-5, PAC-10, PAC-13(1), PAC-13(2), and PAC-13(3)) were designed by the gyratory compaction method.…”

Section: Materials and Sample Preparationmentioning

confidence: 99%

Influence of Nominal Maximum Aggregate Size and Aggregate Gradation on Pore Characteristics of Porous Asphalt Concrete

Huang

Cai

et al. 2020

Materials

View full text Add to dashboard Cite

Porous asphalt concrete (PAC) has been used to improve the traffic conditions in rainy weather due to its high porosity. Aggregate size and gradation have great impact on the connected pore structure, which ultimately affects the permeability of porous asphalt concrete. In this paper, the topological properties of connective pores including pore area, pore circularity, equivalent pore diameter, and void network of porous asphalt concrete with different nominal maximum aggregate sizes and gradations were analyzed using x-ray computer tomography scans and the image processing technique. It was observed that the maximum aggregate sizes will not have significant effect on the percentage of connected pores to total pores for porous asphalt concrete. Furthermore, the percentage of connected pores to total pores is related to the air void content, but for PAC-13 with 20% target air void content or above, the connectivity does not seem to have a sharp increase. Additionally, porous asphalt concrete with a smaller nominal particle size or lower target air void content seems to generate a more concentrated distribution of Eqdiameter. Moreover, pore circularities for porous asphalt concrete with a maximum aggregate size of 10 mm or above are independent of maximum aggregate sizes. Air void contents ranging from 16% to 21% do not have a significant effect on the voids’ circularity. Furthermore, the branching nodes in porous asphalt concrete with a smaller nominal maximum aggregate size or lower target air void content have a more uniform spatial distribution. However, the percentage of cross-linked number to total node raises as the nominal maximum aggregate size or target air void content increases.

show abstract

“…3.6 (± 2.3) 15.4 (± 2.0) 44.8 (± 8.4) G8 4.8 (± 1.2) 7.5 (± 0.4) 20.1 (± 0.5) PAM's permeability performance increased with both kinds of air voids contents, namely TAV and WAAV contents ( Figures 4.12 and 4.13). There was no obvious trend that WAAV content showed stronger correlation with permeability than TAV content as stated by some research (Mansour and Putman 2013), which was probably due to WAAV content being approximately linearly related with TAV content (Figure 4.9). According to ASTM (2008), coefficient of permeability, k, greater than 116 (×10 -3 cm/s) is recommended for PAMs.…”

Section: Permeability Testmentioning

confidence: 71%

“…Among the factors to aggregate packing, aggregate gradation is the most unstructured one, namely it is a relatively independent factor and can be readily modified, and hence it deserves more attention (Roque et al 1997;Ruth et al 2002;Vavrik et al 2002;Suresha et al 2009;Alvarez et al 2010a;Mansour and Putman. 2013).…”

Section: Aggregate Gradation and Packing Theorymentioning

confidence: 99%

Design and performance of porous asphalt mixture for predestrian/cyclist applications in Singapore

Chen¹

View full text Add to dashboard Cite

show abstract

Influence of Aggregate Gradation on the Performance Properties of Porous Asphalt Mixtures

Cited by 102 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 Nominal Maximum Aggregate Size and Aggregate Gradation on Pore Characteristics of Porous Asphalt Concrete

Design and performance of porous asphalt mixture for predestrian/cyclist applications in Singapore

Contact Info

Product

Resources

About