Air pollutant emissions and acoustic performance of hot mix asphalts

Shiying Lin; Wingtat Hung; Zhen Leng

doi:10.1016/j.conbuildmat.2016.11.013

Air pollutant emissions and acoustic performance of hot mix asphalts

Shiying Lin, Wingtat Hung, Zhen Leng

Research output: Journal article publication › Journal article › Academic research › peer-review

44 Citations (Scopus)

Abstract

Four types of asphalt mixtures commonly used in Hong Kong were studied in the laboratory and field. Temperature was found to be the most critical factor affecting pollutant emissions. The volatile organic compounds (VOCs), particulate matter 2.5 μm (PM2.5) and polycyclic aromatic hydrocarbons (PAHs) concentrations varied in accordance with the types of mixtures. The stone mastic asphalt with a nominal aggregate size of 10 mm (SMA10) produced the highest total VOCs, while the polymer modified friction course (PMFC) had the lowest. The polymer modified stone mastic asphalt with a nominal aggregate size of 6 mm (PMSMA6) emitted the most PM2.5 of 114.2 μg/m3. PAHs were well below the health warning level of 200,000 ng/m3. The PMSMA6 was the quietest road surface.

Original language	English
Pages (from-to)	1-10
Number of pages	10
Journal	Construction and Building Materials
Volume	129
DOIs	https://doi.org/10.1016/j.conbuildmat.2016.11.013
Publication status	Published - 30 Dec 2016

Keywords

Asphalt pavement
Gaseous emissions
PAHs
PM2.5
Road noise
VOCs

ASJC Scopus subject areas

Civil and Structural Engineering
Building and Construction
General Materials Science

More information

10.1016/j.conbuildmat.2016.11.013

http://hdl.handle.net/10397/101290

Cite this

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AU - Hung, Wingtat

AU - Leng, Zhen

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Air pollutant emissions and acoustic performance of hot mix asphalts

Abstract

Keywords

ASJC Scopus subject areas

More information

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