A5 Weinviertel motorway, project unit 05
|Company||ÖBA – Österreichische Betondecken Ausbau GmbH|
|Principal||ARGE A5 BL05 – Hochtief/ALPINE CZ|
|Location||Lower Austria - Austria|
|Type||Concrete slab construction|
|Service duration||03.2017 - 09.2017|
Für eine stabile Basis.
In this project, ÖBA was commissioned with soil improvements over an area of more than 1 million m² and the manufacture of a base course stabilised with cement (BC-C) on approximately 164.000 m². The works were implemented using the in-place mixing technique.
Over the course of the soil improvements, ÖBA installed a total of 10,000 t of chalk-cement mixture with a performance of 10,000 m² per workday and a cutting depth of 30 cm. The BC-C was carried out with a cutting depth of 20 cm on an area of 164,000 m².
In the process, 4,250 t of cement were processed. The work performance was 9,000 m² per working day.
Due to the less than ideal grain size distribution of the material to be stabilised, compliance with the short construction time was a particularly enormous challenge. For this reason, ÖBA used two recyclers at the same time. For this to work, the deliveries of the binding material had to be organised precisely – another challenge that the ÖBA team mastered perfectly in this extensive project.
The subsoil stabilised by ÖBA will offer a reliable subsoil for the concrete slab of the A5 motorway for many years.© PORR
The high construction performance required by the customer also constituted a major challenge for the logistics of ÖBA.© PORR