General overhaul of the A1 between Mehring and the three-way intersection at Moseltal
|Company||ÖBA Betondecken Ausbau Deutschland GmbH|
|Principal||Landesbetrieb Mobilität Rheinland Pfalz|
|Location||Rhineland–Palatinate - Germany|
|Type||Concrete slab construction|
|Runtime||04.2017 - 11.2017|
All services performed by ÖBA.
The approximately 7km-long section of the A1 motorway between Mehring and the three-way intersection at Moseltal was in need of a general overhaul. The project was awarded to ÖBA and comprises a two-layer, two-part concrete slab with an exposed aggregate concrete surface structure, approximately 55,000m² in size. One particular challenge was posed by the longitudinal and transverse gradient of up to 6%. In addition, 20,000 running metres of joints and 1,800 running metres of monolithic curbstone with integral gutter were produced using slipform construction.
The company’s own mobile concrete mixer, with a mixing capacity of 200m³/h, produced 12,000m3 of sub-surface concrete and 3,500m3 of road surface concrete. All services were performed by ÖBA using its own employees and equipment: from producing the concrete, to installing the concrete slab and producing the exposed aggregate concrete surface, to fabricating the monolithic curbstones and joints.