The Perfect Recipe
In order to prepare the more than 80,000 m² site for development, the earthworks activities included raising the site’s ground level by up to 10 m. In the process, several hundred thousand cubic meters of soil had to be stabilized and consolidated layer by layer. The binding agent for the soil with a low bearing capacity was defined as 10 kg/m² lime-cement mixture. While lime improves the ability to pave over and consolidate the wet, cohesive soil, cement permanently increases its bearing capacity, volume stability, and resistance to water and frost.
Outstanding Mix Quality
First, binding agent spreaders from the Wirtgen Group’s system partner Streumaster precisely pre-spread the mixed binding agent. Wirtgen soil stabilizers were responsible for homogeneously mixing in the binding agents. All-wheel-drive soil stabilizers like the WR 250 were used for this process – which, with 766 PS, a working width of 2.4 m, and a working depth of 560 mm, is particularly suitable for such large-scale jobs. As such, the high-performance WR 250 can achieve daily rates of between 6,000 and 12,000 m².