A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Field Investigation of Acoustic Performance of Various Asphalt Surface Mixes
This study investigates the level and trend of tire/pavement noise on pavements with various asphalt surface mixes, and the effect of mix design factors on tire/pavement noise. Noise data were collected on the California highway network, using a newly-developed on-board sound intensity (OBSI) method, in three consecutive years from various asphalt pavements. Results show that tire/pavement noise generally increases with pavement age. Compared to conventional dense-graded mixes, open-graded mixes and rubberized gap-graded mixes can reduce noise, but with different noise reduction life spans. Open-graded mixes can retain noise reduction benefits for about five to seven years, while gap-graded mixes can only retain the benefit for a short period. The noise reduction benefit mainly comes from higher air-void contents in the open- or gap-graded mixes, while the rougher surfaces of open- or gap-graded mixes contribute to the increase of noise at low frequency levels.
Field Investigation of Acoustic Performance of Various Asphalt Surface Mixes
This study investigates the level and trend of tire/pavement noise on pavements with various asphalt surface mixes, and the effect of mix design factors on tire/pavement noise. Noise data were collected on the California highway network, using a newly-developed on-board sound intensity (OBSI) method, in three consecutive years from various asphalt pavements. Results show that tire/pavement noise generally increases with pavement age. Compared to conventional dense-graded mixes, open-graded mixes and rubberized gap-graded mixes can reduce noise, but with different noise reduction life spans. Open-graded mixes can retain noise reduction benefits for about five to seven years, while gap-graded mixes can only retain the benefit for a short period. The noise reduction benefit mainly comes from higher air-void contents in the open- or gap-graded mixes, while the rougher surfaces of open- or gap-graded mixes contribute to the increase of noise at low frequency levels.
Field Investigation of Acoustic Performance of Various Asphalt Surface Mixes
Lu, Qing (author) / Kohler, Erwin (author) / Harvey, John (author)
Tenth International Conference of Chinese Transportation Professionals (ICCTP) ; 2010 ; Beijing, China
ICCTP 2010 ; 3937-3947
2010-07-22
Conference paper
Electronic Resource
English
Field Investigation of Acoustic Performance of Various Asphalt Surface Mixes
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