Performance of porous asphalt mixture with various additives

Ma, Xiang; Li, Qiang; Yong, Cui; Ni, An-Qi

doi:10.1080/10298436.2016.1175560

Cited by 91 publications

(36 citation statements)

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“…Permeable asphalt (PA) pavement is a popular and practical, low-impact development (LID) technology that serves as an ideal alternative to conventional low-traffic-volume pavement because it can help to address the issues stated above by providing in situ restoration of the urban hydrological cycle and reducing the need for traditional stormwater facilities [28]. PA pavement consists of various layers with porous materials, which not only allow stormwater to infiltrate into the ground, unlike conventional asphalt pavement, but can also simultaneously remove pollutants (e.g., total suspended solids (TSS) and heavy metals) from stormwater runoff on site, thus raising their value as a LID option in current urban development [25,[29][30][31]. As the PA mixture (the surface material of the PA pavement) requires relatively low strength compared to conventional dense asphalt mixtures, researchers have explored the feasibility of recycling MSWI-BA aggregate (MSWI-BAA) in PA mix designs.…”

Section: Introductionmentioning

confidence: 99%

Metals Leaching in Permeable Asphalt Pavement with Municipal Solid Waste Ash Aggregate

Zhao

Zhu

2019

Water

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The leaching behaviors of four heavy metals (Zn, Pb, Cu and Cr) from unbounded municipal solid waste incineration-bottom ash aggregate (MSWI-BAA) and permeable asphalt (PA) mixture containing MSWI-BAA were investigated in the laboratory. The horizontal vibration extraction procedure (HVEP) test and a simulated leaching experiment were conducted on MSWI-BAA with three particle sizes, but only the simulated leaching experiment was carried out on a type of PA specimen (PAC-13) with and without these MSWI-BAAs. Leaching data were analyzed to investigate the leaching characteristics, identify the factors affecting leaching and assess the impact on the surrounding environment. Results indicated that the leaching process was comprehensively influenced by contact time, leaching metal species and MSWI-BAA particle size, regardless of MSWI-BAA alone or used in PAC-13 mixture. The leaching concentrations of Cr, Zn and Pb from MSWI-BAA in HVEP testing was strongly related to MSWI-BAA particle size. The use of MSWI-BAA in PAC-13 mixture did not change the basic tendency of heavy metal leaching, but it led to an increase of Cr and Zn in leachate overall. The leachate from the MSWI-BAA and PAC-13 mixture with MSWI-BAA was shown to be safe for irrigation and would have very little negative impact on surrounding surface and underground water quality.

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Section: Introductionmentioning

confidence: 99%

Metals Leaching in Permeable Asphalt Pavement with Municipal Solid Waste Ash Aggregate

Zhao

Zhu

2019

Water

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“…Five trial mixtures of varying asphalt contents in 0.5% increment were prepared for the two tests, and each test was repeated three times at each trial asphalt content. As Figure 1 illustrates, the minimum asphalt content is determined as the content corresponding to the inflection point of the Cantabro loss curve, and the maximum asphalt content is determined as the content corresponding to the inflection point of the draindown ratio curve [12]. Typically, the optimum asphalt content (OAC) of the PAC mixture is selected between the minimum and maximum asphalt contents.…”

Section: Optimum Asphalt Contentmentioning

confidence: 99%

“…The Cantabro abrasion test is widely used to evaluate the durability of PAC [12]. The mass loss during this test is defined as the Cantabro mass loss, which is calculated as follows:…”

Section: Cantabro Abrasion Testmentioning

confidence: 99%

“…Many researches have been carried out to improve the overall performance of PAC. It has been reported that some measures were effective in improving the structural performance of PAC, such as using high-viscosity binder, fiber and so on [12,13], while aggregate gradation plays an important role in both the structural and functional performance of PAC [14,15]. Aggregate gradation is very important for PAC, because it controls the porosity of the aggregate structure, which in turn affects the permeability of PAC.…”

Section: Introductionmentioning

confidence: 99%

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Novel Gradation Design of Porous Asphalt Concrete with Balanced Functional and Structural Performances

Wang²,

Zhou

2020

Applied Sciences

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To improve the permeability of porous asphalt concrete (PAC) with a small nominal maximum aggregate size (NMAS) of 10 mm (PAC10), a novel gradation design by excluding the 0.075–3 mm aggregate was developed. This study aims to evaluate the functional and structural performances of the novel PAC10 with various mineral filler contents, using the conventional PAC10 and 13 mm NMAS PAC (PAC13) as reference, and develop the optimum gradation of the novel PAC10. The performance properties evaluated include moisture susceptibility, durability, high-temperature stability, low-temperature cracking resistance and permeability. The results indicated that for the two conventional PACs with the same fine aggregate and mineral filler content, PAC10 had worse permeability and rutting resistance, similar moisture susceptibility and durability, and better low-temperature cracking resistance, compared with the PAC13. The novel PAC10 showed better permeability than the conventional PAC10. With the increase of the mineral filler content, the structural performance of the novel PAC10 is improved, but its permeability is decreased. With a mineral filler content of 6%, the novel PAC10 can have balanced functional and structural performances, which are equivalent to those of the conventional PAC13.

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“…The modifiers currently used in PAMs mainly include fibers, epoxy resins, crumb rubber, etc. [8][9][10][11][12][13]. Crumb rubber is produced from used tires and there are approximately 140 million used tires generated per year in China.…”

Section: Introductionmentioning

confidence: 99%

A New Eco-Friendly Porous Asphalt Mixture Modified by Crumb Rubber and Basalt Fiber

et al. 2019

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In this paper, the performance of environmentally friendly porous asphalt mixture was optimized by the response surface method. Taking the asphalt-aggregate ratio, crumb-rubber content, and basalt fiber content as the independent variables, the air void, Marshall stability, flow value, Marshall quotient, and Cantabro particle loss are the response values. The best model was determined by fitting the experimental data. After the influence of the independent variables on the response values was clarified, the models were used to optimize the dosage of the asphalt, crumb rubber, and basalt fiber through comprehensive analysis. The results showed that the application of the response surface method can complete the establishment of the models and the optimization of the performance of the porous asphalt mixture with sufficient accuracy. The optimum dosage of the asphalt to aggregate ratio, crumb rubber, and basalt fiber is 4.51%, 11.21%, and 0.42%, respectively. The high-temperature stability, low-temperature crack resistance, water stability, and Cantabro particle loss resistance of the optimized porous asphalt mixture were effectively improved, which provides a reference for the construction of eco-friendly pavement.Sustainability 2019, 11, 5754 2 of 21 worth mentioning that there have been many studies showing that crumb rubber can improve the performance of PAM more comprehensively. Specifically, Jiao et al. [14] researched the failure mode of SBS (styrene-butadiene-styrene)-modified PAM and SBS-crumb-rubber modified PAM by compression and splitting experiments, the results showed that PAM modified by crumb rubber has a more uniform structure and more stable performance. Xie et al. [15] studied the pavement performance of crumb rubber-modified PAM in a long-term operation stage and the results showed that the pavement still showed good anti-rutting performance after five years of operation. Sangiorgi et al. [16] conducted a comprehensive evaluation of the performance of a crumb rubber-modified asphalt mixture. The results showed that although the application of rubber powder reduces the permeability of PAM, it increases the adhesion between the binder and aggregate and decreases the Cantabro particle loss of the mixture. At the same time, the rubber powder-modified asphalt mixture improves its low-temperature crack resistance. The above studies have proved the beneficial effect of crumb rubber on PAM. However, the considerations are relatively simple, and it is impossible to combine various factors to determine the optimum amount of crumb rubber.Fiber-based modifiers have been extensively studied in PAMs [17,18]. It is worth mentioning that basalt fiber is gradually used in modified asphalt mixture due to its high strength, good corrosion resistance, and high-temperature resistance. Cheng et al. [19] determined that the optimum dosage of diatomite and basalt fiber in an asphalt mixture was 14% and 0.32%, respectively, through an orthogonal experimental design. It was found that basalt fiber significantly improves...

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Performance of porous asphalt mixture with various additives

Cited by 91 publications

References 1 publication

Metals Leaching in Permeable Asphalt Pavement with Municipal Solid Waste Ash Aggregate

Metals Leaching in Permeable Asphalt Pavement with Municipal Solid Waste Ash Aggregate

Novel Gradation Design of Porous Asphalt Concrete with Balanced Functional and Structural Performances

A New Eco-Friendly Porous Asphalt Mixture Modified by Crumb Rubber and Basalt Fiber

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