Producing hydraulically bound base layers
In the construction of new roads, airports or other traffic surfaces, hydraulically bound base layers are frequently paved on top of the levelled and compacted subgrade. Graded new mineral aggregate is mixed with cement and water to produce the specified material mix.
When Wirtgen stabilizers or recyclers are used to produce the base layer, the mineral aggregate mix is spread on the subgrade level in the specified thickness. The recycler then homogeneously mixes in specified quantities of cement and water in adjacent working cuts. The cement is pre-spread onto the surface ahead of the recycler or directly injected as a slurry into the recycler's mixing chamber. The operation is completed by final levelling and compaction.