CHARACTERIZATION OF THE CLOGGING BEHAVIOUR OF DOUBLE LAYER POROUS ASPHALT

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概要

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• Porous wearing courses improve traffic safety and can potentially reduce traffic noise. However, its service life is shorter compared to dense mix due to clogging and poor durability. This paper presents the characterization of the clogging behaviour of single and double layer porous asphalt (PA) mixtures. The double layer PA comprises of a finer upper layer and a coarser bottom layer and was historically developed to further reduce traffic noise. Two gradations comprising of 10 and 14 mm top layer maximum aggregate sizes were compacted to 30, 20 and 15 mm thickness, while the maximum aggregate size for the base layer is consistently maintained at 20 mm. The clogging behaviour of the double layer was compared to the single layer PA specimens. The laboratory experimental results showed that the double layer PA made with SBS exhibit drainage time 37% less upon cleansing as compared to similar single layer 10 mm maximum aggregate size porous asphalt.

著者

• HAMZAH Meor

  School of Civil Engineering Universiti Sains Malaysia

関連論文

• RESISTANCE TO OVERCOMPACTION OF SINGLE LAYER AND DOUBLE LAYER POROUS ASPHALTS
• CHARACTERIZATION OF THE CLOGGING BEHAVIOUR OF DOUBLE LAYER POROUS ASPHALT
• A Laboratory Investigation on the Rheological Properties of Asphalt Binder Containing Rediset

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