The first poroelastic test section in PERSUADE
Résumé
The PERSUADE project aims at developing poroelastic road surfacing (PERS). A small size field test of PERS was constructed before constructing full scale test sections to gain experience from mixing and laying the PERS material outside the laboratory and to monitor the performance of the pavement over a winter as well as to investigate the performance of the PERS by measuring the characteristics of the surface. The test section was constructed in Denmark on a ramp from a parking area with low traffic volume and driving speed. The test section is 7 meter long and 1.5 meter wide. It is not possible to perform noise measurements using the SPB or the CPX method. Instead absorption, mechanical impedance, texture and drainability have been measured and used as indicators for the acoustical properties of the pavement. At the test site there is also an old dense asphalt concrete with 11 mm maximum aggregate size as well as a new single layer porous asphalt concrete pavement with 8 mm maximum aggregate size which are both used for comparison. The results all indicate that the PERS pavement has a good potential for noise reduction.