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한국도로학회 / v.8, no.2, 2006년, pp.13-22 
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( An Optimization of the Porous Asphalt Pavement Permeability Function Focusing on the Surface Free Energy of Polymer Fog-Coat Methods ) |
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| Surface fog coating methods to porous pavements with a polymer, that contains MMA as a main ingredient, are being widely used in Japan and called 'Top-Coat Processes'. They have lots of effects such as to prevention of the pavement void choking, improvement of the water permeability of the pavements and so on. The purpose of this research is to show the characterization of the polymer to optimize the functions of the polymer fog-coat methods. This study focused on the difference of 'wetting' by water among polymers used for the fog coatings, and calculation the surface free energy from the water contact angle on each material. At the end, the water permeability test were conducted using porous asphalt mixtures that were coated with several kinds of polymers. The permeability was also measured on the specimens that were forcibly choked by muddy water and the resistance to choking was compared. It is concluded that the reduction of the surface free energy between water and a polymer improves the life of the permeability functions of porous pavements. Improvement of water permeation capacity and void-blocking controlling effects can be quantitatively evaluated using the interfacial tension ($gamma$sl) with water for the coating material (high-viscosity asphalt and hardening resin binder). Consequently, the smaller the $gamma$sl of the coating material the higher the water permeation capacity and void-blocking controlling effects of the porous asphalt pavements. |
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한국도로학회논문집 / v.8, no.2, 2006년, pp.13-22
한국도로학회
ISSN : 1738-7159
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200629734258595)
언어 : 영어 |
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| 논문 제공 : KISTI 한국과학기술정보연구원 |
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