Stability and permeability characteristics of porous asphalt pavement: An experimental case study

Akhtar, Mohammad Nadeem; Al-Shamrani, Abdullah M.; Jameel, Mohammed; Khan, Nadeem A.; Ibrahim, Zainah; Akhtar, J. N.

doi:10.1016/j.cscm.2021.e00591

Cited by 13 publications

(8 citation statements)

References 12 publications

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“…Porosity and permeability tests on asphalt samples were carried out using a falling head permeameter. From this test a permeability coefficient value will be obtained [6]. The difference in hydraulic heads on the right and left sides of the permeameter makes water flow from a higher hydraulic head reach equilibrium.…”

Section: Porosity and Permeability Testmentioning

confidence: 99%

Development of Rainwater Filtration System with Porous Asphalt

Nataadmadja,

Putrilia

2024

IOP Conf. Ser.: Earth Environ. Sci.

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Rainwater that is not properly collected causes stagnant water, where the water will be polluted by pollutants and contaminants. Thus, it is necessary to innovate to increase the availability of clean water using porous asphalt which is researched to reduce pollutants in polluted water. In this study, filtration of rainwater and stormwater runoff will be carried out using porous asphalt as a filter media with six different filtrate variations. Parameters analysed were pH, Total Dissolved Solids (TDS), and conductivity. The tests carried out were Optimum Asphalt Content (OAC) testing using the Marshall test method with a percentage of asphalt content used was 4-6%, Cantabro Loss testing, porosity, and permeability tests on porous asphalt specimens, as well as testing the filtration effect of porous asphalt. Rainwater and stormwater runoff that flowed through porous asphalt samples without the addition of filter media increased pH, TDS, and conductivity. In rainwater and stormwater runoff filtration, the highest increase in pH occurred in variation 3, namely porous asphalt + aggregate + limestone. The largest reduction in TDS and conductivity values occurred in Variation 7, namely porous asphalt + aggregate + coconut shell activated carbon + sponge + cotton.

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Section: Porosity and Permeability Testmentioning

confidence: 99%

Development of Rainwater Filtration System with Porous Asphalt

Nataadmadja,

Putrilia

2024

IOP Conf. Ser.: Earth Environ. Sci.

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“…Therefore, the use of porous asphalt in urban passages and roads reduces the risk of floods and increases the protection of drivers in adverse weather conditions. They also state that achieving the desired permeability and strength (depending on the weather conditions and type of road) can be achieved only by modifying the gradation of porous asphalt (Akhtar et al, 2021). Also, according to Kumar Suman and Kumar studies, porous asphalt is an efficient way to control storm water runoff that is commonly used in developed countries.…”

Section: Introductionmentioning

confidence: 99%

Modification of Aggregate Gradation for Simultaneous Optimization of Evaporation and Permeability of Porous Asphalt Mixtures

fard

KHABIRI

Tamás

2022

Front. Built Environ.

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Today, with the expaansion of cities and the growth of urbanization, followed by climate change, it is crucial to prevent the occurrence of floods and control it in cities. Porous pavement, including porous asphalt, is known as one of the best methods for urban flood control due to its two properties of evaporation and permeability. The purpose of this study is to modify the gradation of porous asphalt in order to optimize its permeability and evaporation for low-traffic urban passages. For this purpose, permeability, evaporation, and Cantabro tests were performed on samples with different gradations and percentages of bitumen; then, using Design Expert software, the gradation and percentage of optimal bitumen were determined. Finally, the performance of the asphalt gradation and optimal bitumen percentage were evaluated by performing empty space percentage, modified Latman, Marshall, and psychological strength tests and Cantabro tests. The results show that with finer gradation, the permeability, evaporation, and minimum bitumen percentage are reduced by about 55%, 82%, and 60%, respectively. Also, the gradation is medium with 4% bitumen gradation and the percentage of bitumen is optimal, which has a good performance in low-traffic urban passages.

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“…At present, there have been some studies on the road performance of PAM [6,18,22,23]. The bearing capacity of PAP mainly depends on the intercalation of large-size aggregate and the cementation of binder [24,25], and improving the adhesion of binder is a critical way to ensure its durability [26,27]. In addition, in terms of functional research on noise reduction of PAP, since the functionality of PAP is inseparable from its macroporous structure, scholars have mainly analyzed the effects of void structure characteristics, aggregate particle size, and layer thickness on the functionality of PAP [28][29][30].…”

Section: Introductionmentioning

confidence: 99%

Composition Optimization and Damping Performance Evaluation of Porous Asphalt Mixture Containing Recycled Crumb Rubber

Quan

Sun

2022

Sustainability

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Composition optimization of the asphalt mixture of pavement is one effective measures to reduce the harm of traffic noise. To improve the noise reduction effect of porous asphalt mixture (PAM) and promote the recycling of crumb rubber in highway engineering, the preparation parameters of high-viscosity modified asphalt for PAM were optimized in this study, and the mixture gradation was optimized based on the unbalance force and contact force of mixed aggregate. The effects of crumb rubber content and particle size on the damping performance and dynamic shear modulus of the mixture were studied. The effects of different preparation parameters on the performance of the PAM were comprehensively evaluated based on the orthogonal test, and preparation parameters of PAM were recommended. The results show that with the increase of crumb rubber content, the damping ratio of the mixed aggregate increases gradually. The addition of crumb rubber is conducive to improving the damping performance and toughness of the PAM, but it has an adverse impact on the bearing capacity. Under the condition of low strain, the damping ratio of the mixed aggregate containing 2–5 mm crumb rubber is 1.2–5 times that of the mixed aggregate containing 0.6–1 mm crumb rubber. The recommended optimum content of crumb rubber in PAM is 4%, and the optimum particle size of alternative aggregate is 2.36–4.75 mm. The significant factors affecting Marshall stability are rubber particle content, asphalt aggregate ratio, mixing temperature, compaction times, and forming temperature. The rational utilization of crumb rubber in PAM is of positive significance to promoting the green development of highway construction and the harmless treatment of waste resources.

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Stability and permeability characteristics of porous asphalt pavement: An experimental case study

Cited by 13 publications

References 12 publications

Development of Rainwater Filtration System with Porous Asphalt

Development of Rainwater Filtration System with Porous Asphalt

Modification of Aggregate Gradation for Simultaneous Optimization of Evaporation and Permeability of Porous Asphalt Mixtures

Composition Optimization and Damping Performance Evaluation of Porous Asphalt Mixture Containing Recycled Crumb Rubber

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