Porous Pavements

Ferguson, Bruce K.

doi:10.1201/noe0849396274.ch213

Cited by 12 publications

(40 citation statements)

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“…where AV s(i) represented the percent of AV volume in the PA specimen slice s(i) of specimen S to the total AV volume of specimen S (%); V s(i) was the AV volume in specimen slice s(i) of specimen S (mm 3 ); and V s was the total AV volume of specimen S (mm 3 ). e AV number was defined as the number of voids within a certain vertical cross-sectional area (circle area) of image i. e AV size was defined as the volume of voids of a PA specimen slice s(i).…”

Section: Advances In Materials Science and Engineeringmentioning

confidence: 99%

“…where S s(i) was the specific surface area of the voids per unit bulk volume of a PA specimen slice s(i) (mm −1 ), A s(i) was the interstitial surface area of AV in specimen slice s(i) (mm 2 ), and V s was the volume of each PA specimen slice (mm 3 ), V s � 810.73 mm 3 . Fractal geometry theory first proposed by Mandelbort in 1973 has been recommended as a simple and effective tool for characterizing the rough curves of aggregates in asphalt mixture and rough surface of asphalt pavement [34,35].…”

Section: Advances In Materials Science and Engineeringmentioning

confidence: 99%

“…Porous asphalt (PA) pavement systems, a group of typical permeable pavement systems (PPS), are recommended as an effective infrastructure for current low-impact development (LID) and sustainable urban stormwater management [1,2]. Generally, a standard PA pavement system consists of three main layers including PA surface, choker course and reservoir structure with various porous materials from top to bottom [3][4][5]. As a result, a complex network of interconnected air voids is formed within it.…”

Section: Introductionmentioning

confidence: 99%

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Investigation on the Properties and Distribution of Air Voids in Porous Asphalt with Relevance to the Pb(II) Removal Performance

Zhao

Tong²,

Zhu

2019

Advances in Materials Science and Engineering

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In this study, one type of porous asphalt (PA) mixture was designed at two different air void (AV) contents. Direct information regarding both the dimensional properties and AV distribution within two PA specimens in their natural states were observed, compared, and analyzed based on the X-ray CT (computed tomography) and digital image analysis techniques and fractal geometry theory. The characteristics of AV distribution, including AV content, AV number, and AV volume were quantified by comparing pore structure at different specimen heights. The dimensional properties of voids at different specimen heights were characterized by parameters in terms of equivalent diameter, specific surface area, and fractal dimension. The Pb(II) removal performance of the two PA mixtures was examined by an artificial rainfall event. The relationship between the PA microstructure and Pb(II) removal rate was then determined. It is observed from this study that the overall distribution pattern of AV inside PA specimen is independent of AV content. The distributional parameters including AV content, AV number, and AV volume show good correlations with three dimensional parameters, respectively. The Pb(II) removal in general appears to be independent of AV content because both PA mixtures have the same level of performance in removing Pb(II) during the rainfall period. The removal rate of Pb(II) shows good correlation with AV content, AV number, AV volume, and equivalent diameter of AV, indicating that a perfect distribution of AV within PA mixture is more important than the complex geometries of voids for getting a higher Pb(II) removal during rainfall event and without providing a temporary storage of stormwater in PA mixture. These findings provide an effective evidence to reveal that the AV distribution and properties characteristics have significant implications for pollutant removal in field PA pavement system.

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Section: Advances In Materials Science and Engineeringmentioning

confidence: 99%

Section: Advances In Materials Science and Engineeringmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Investigation on the Properties and Distribution of Air Voids in Porous Asphalt with Relevance to the Pb(II) Removal Performance

Zhao

Tong²,

Zhu

2019

Advances in Materials Science and Engineering

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“…Engineering experience and laboratory investigations show that application of PAM in the road pavement can enhance skid resistance between pavement surface and tyres in wet conditions by reducing aquaplaning, and splash and spray, which is attributed to the excellent drainage performance generated by the high content of water-accessible air voids (Khalid and Jimenez 1995;Ferguson 2005). Meanwhile, a lowered noise level is observed on permeable roads since compressed air generated between tyres and pavement, which is the main source of noise, is partially absorbed into the voids distributed on the surface's macro texture.…”

Section: List Of Figuresmentioning

confidence: 99%

“…(Khalid and Jimenez, 1995) (2) Splash and spray 'Splash' is the phenomenon that water is thrown by rolling wheels as a vehicle is running on a wet surface, and is usually followed by 'spray', which refers to mist being formed by numerous minute water droplets (Figure 2.3). Splash and spray jeopardises the visibility and causes serious problems in driving safety (Khalid and Jimenez 1995;Nicholls 1997;Ferguson 2005). For example, visual range can be shortened to below 5~10 m, and windscreens may be misted and dirtied.…”

Section: Advantagesmentioning

confidence: 99%

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

Chen¹

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Practical Review of Pervious Pavement Designs

Mullaney

Lucke

2013

CLEAN Soil Air Water

133

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An international literature review was undertaken to identify the most appropriate design for a pervious paving system. The literature review revealed that information contained in design guidelines is often unclear and occasionally conflicting and this can be confusing for designers and other stormwater professionals. This literature review was to form the basis of a design for a new research study on the benefits of using pervious pavements to promote street tree health has recently commenced at the University of the Sunshine Coast in Australia. The review identified four typical pervious paving surfaces porous concrete porous asphalt, permeable inter locking concrete pavers, and concrete and plastic grid pavers. All four pavement surfaces were found to have high stormwater pollutant removal performance in a variety of conditions, with a wide range of designs. Maintenance procedures can have a significant impact on the rate of clogging of pervious pavements which can impact on the effective life span and there is conflicting and unreliable evidence to support the inclusion of a geofabric layer within pervious paving systems. This paper summarises the literature review findings and is intended as a practical resource for designers and researchers of pervious pavement systems.

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Porous Pavements

Cited by 12 publications

References 0 publications

Investigation on the Properties and Distribution of Air Voids in Porous Asphalt with Relevance to the Pb(II) Removal Performance

Investigation on the Properties and Distribution of Air Voids in Porous Asphalt with Relevance to the Pb(II) Removal Performance

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

Practical Review of Pervious Pavement Designs

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