Sustainable Photocatalytic Asphalt Pavements for Mitigation of Nitrogen Oxide and Sulfur Dioxide Vehicle Emissions

Hassan, Marwa; Mohammad, Louay N.; Asadi, Somayeh; Dylla, Heather; Cooper, Samuel B.

doi:10.1061/(asce)mt.1943-5533.0000613

Cited by 73 publications

(47 citation statements)

References 13 publications

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“…All those materials have been found to enhance the photocatalytic activity and exhaust gas-decomposing efficiency of TiO2 [90]. There are two ways of using TiO2 in exhaust gas-decomposing pavement materials [85,91]:…”

Section: Exhaust Gas-decomposing Pavement Materialsmentioning

confidence: 99%

A review of eco-friendly functional road materials

Jian

Huang

Sha

2018

Construction and Building Materials

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Extensive studies on traditional and novel engineering materials and the increasing 8 demands by growing traffic have led to tremendous changes of the function of roads. Roads, as an 9 important part of the human living environment, have evolved from structures that were designed and built for passing vehicles, to ecological assets with significant economic importance. In addition to structural stability and durability, functions such as noise reduction, urban heat island mitigation, de-icing and exhaust gas absorption, are also expected. This study focused on state-of-the-art research on the performance, applications and challenges of six environment-friendly functional road materials, namely the permeable asphalt concrete, noise-reducing pavement materials, low heat-absorbing pavement materials, exhaust gas-decomposing pavement materials, de-icing pavement materials, and energy harvesting pavement materials. With this study, we aim to provide references to the latest relevant literatures of the design and development of environment-friendly functional pavement, and promote innovation in materials science and pavement design principles. For this purpose, this review compiled extensive knowledge in modern road construction and related disciplines, in order to promote the development of modern pavement engineering technologies.

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Section: Exhaust Gas-decomposing Pavement Materialsmentioning

confidence: 99%

A review of eco-friendly functional road materials

Jian

Huang

Sha

2018

Construction and Building Materials

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“…At a higher relative humidity the water molecules interfere with NOx contact to the TiO2 active sites on the surface. Fig 1 represents the effect of relative humidity on the photocatalytic efficiency at a flow rate of 0.05L/m 2 [5] .…”

Section: A Effect Of Relative Humidity On Photocatalytic Efficiency mentioning

confidence: 99%

Efficiency of Photocatalytic Pavements – A Critical Review

Anusree¹,

Baby²

2017

IJERT

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Increased automobile fleet generates pollutants which results in a progressive deterioration of environment. Most of the pollutants are organic compounds which emerge from the burning of fossil fuels. Titanium dioxide is a semiconducting material which can degrade the organic compounds in the presence of ultraviolet rays by photocatalysis process. Pavements in which Titanium dioxide is incorporated in order to reduce the SOx and NOx content in the atmosphere by the photocatalysis process is called photocatalytic pavements. TiO2 can be applied to both concrete and asphalt pavements in the form of a thin layer coating on the surface. The efficiency of photoctalytic pavements depend upon pollutants flow rate, UV light intensity, contaminants present on the surface of pavements and relative humidity.

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“…Louisiana State University (Hassan, et al, 2013) built the first air-purifying photocatalytic asphalt pavement in the U.S. by a water-based spray coating of TiO2. LSU found that the efficiency of NOx reduction is affected by the flow rate of the pollutant, relative humidity, UV light intensity, wind speed, vehicle type, and temperature.…”

Section: Sustainability Benefits (Tbl)mentioning

confidence: 99%

“…For concrete pavement, photocatalytic technology (mainly TiO2) has been applied (Hassan, et al, 2013) by photocatalytic overlay, a thin exterior film of suspended TiO2 nanoparticles within binding agent (such as cement), or sprinkling TiO2 nanoparticles on curing concrete.…”

Section: Scorementioning

confidence: 99%

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A tool to evaluate sustainability of pavement maintenance projects.

Zhang¹

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Sustainable Photocatalytic Asphalt Pavements for Mitigation of Nitrogen Oxide and Sulfur Dioxide Vehicle Emissions

Cited by 73 publications

References 13 publications

A review of eco-friendly functional road materials

A review of eco-friendly functional road materials

Efficiency of Photocatalytic Pavements – A Critical Review

A tool to evaluate sustainability of pavement maintenance projects.

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