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Noise reduction of Asphalt Concrete Pavement : Techniques and their performance evaluation  

Ock, Chang-Kwon (한국도로공사 도로교통연구원 포장연구팀)
Kim, Jin-Hwan (한국도로공사 도로교통연구원 포장연구팀)
Lee, Jong-Sup (한국도로공사 도로교통연구원 포장연구팀)
Publication Information
International Journal of Highway Engineering / v.12, no.1, 2010 , pp. 29-37 More about this Journal
Abstract
Porous pavements can provide road users with beneficial characteristics such as skid resistance and surface water drainage under rainy condition, and they cause less tire-road noise than conventional hot mix asphalt(HMA) pavements. However, voids of porous pavements are easily clogged by road debris at early stages, which leads to frequent maintenance works. Therefore, this study focused on the way of minimizing void clogging in porous pavements. During mixture design, the quantity of coarse aggregate has been increased to form many straight void conduits (SVCs) in porous HMAs. These SVCs were found to be effective resisting the void clogging problems. Four different porous HMAs(19mm, 13mm, 10mm, and 8mm) were developed and placed on highway roads. Their performances were validated with field tests during the past four years.
Keywords
porous; field permeability test; skid resistance tes; traffic noise;
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