SOUNDPROOF CONSTRUCTION ELEMENT
The invention relates to a soundproof construction element (1) comprising a filling body (2) made of a light material and a covering layer (3, 3', 3'') which is made of concrete, in particular fibre concrete, and which is applied to at least two sides of the filling body. The invention is characterised in that the light material is made of styropor concrete and/or a cardboard lattice (2').