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The Nypol range of polymer modified binders has been designed to deliver enhanced performance across a wide range of asphalt mix types, applications and environments. Nypol 86 is specially designed for use in surface courses intended to inhibit noise generated by vehicles.
Bułgarska street in Poznań runs beside a football stadium and links two busy roads, Grunwaldzka street and Bukowska Steet. Two lanes wide, Bułgarska street was heavily trafficked. Making matters worse, the stadium was to be extended and required additional parking. The decision was taken to reconstruct and widen 1km of Bułgarska street to improve traffic flows plus enlarge the existing stadium parking area. One factor that had to be taken into consideration was the existence of a housing estate and a large accumulation of single family houses near the stadium. The problem was how to minimise noise disturbance caused by heavier traffic flows on the newly refurbished road.
It was decided to use a noise reducing surface course for the section of street being rebuilt; thereby improving traffic flows along Bułgarska street while at the same time ensuring that ambient noise levels were kept to a minimum. A Nynas product of proven suitability for low noise surfacing – Nypol 86 – was chosen for the job.
The decision taken to employ an asphalt bound by Nypol 86 binder produced under Polish standard PN-EN 14023 the equivalent of a polymer modified asphalt 65/105-60.
The structure of the road comprised:
The mixture was designed at the laboratory of the General Directorate of National Roads & Motorways (GDDKiA) in Poznań. A total of almost 24000m² of 'quiet' surfacing was laid.
The refurbishment of Bułgarska street led to an improvement in traffic movement around the stadium ahead of the European Football Championship.
SITE NAME UL. Bułgarska w Poznaniu
TASK Reconstructing and widening a city street with low noise surfacing
CLIENT ZDM Poznań (the municipal highways board)
DATE June 2011 – April 2012