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Communication Dans Un Congrès Année : 2014

Laboratory measurements on noise reducing PERS test slabs

Résumé

The EU financed PERSUADE project aims at developing poroelastic road surface (PERS) with high noise reducing properties. So far five different versions the PERS material has been produced and relevant parameters has been measured in laboratory tests. The different PERS versions are either made as factory produced slabs or as test-slabs produced in moulds at site during construction of small scale test sections. It is not possible to perform real CPX noise trailer measurements or roadside SPB measurements on the slabs. Therefore stand-in parameters and indicators for noise have been measured instead. The acoustic absorption is tested in an impedance tube, to illustrate the acoustic performance of the material. In order to evaluate the open structure of the PERS material the permeability as well as the built in air void have been measured using image analysis on thin and plane sections cut from the material. The mechanical impedance is measured to describe the dynamic stiffness of the elastic material. Finally the pavement surface texture have been measured and surface texture spectra's have been predicted as this gives important information on the noise properties of a road pavement. The results of these measurements will also be compared to other noise reducing pavement types like porous asphalt as well as to normal dense reference pavements. On the background of all these measurements it is possible to compare the test slabs, and give an evaluation of the noise reducing potential of the tested PERS materials. These results will be used as parts of the selection criteria for which types of PERS material to test in full scale on roads with real traffic.
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Dates et versions

hal-01470461 , version 1 (17-02-2017)

Identifiants

  • HAL Id : hal-01470461 , version 1

Citer

Rasmus Skov, Bent Andersen, Hans Bendtsen, Julien Cesbron. Laboratory measurements on noise reducing PERS test slabs. Forum Acusticum 2014, Sep 2014, CRACOVIE, Poland. 7p. ⟨hal-01470461⟩
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