METHOD FOR IMPROVING THE SOUND INSULATION QUALITY OF A HOLLOW-CORE SLAB AND A COMBINATION HOLLOW-CORE WITH HIGH SOUND INSULATION QUALITY

摘要

The invention concerns a method for the improvement of the sound insulation quality of a hollow-core slab and a building element slab combination with a high sound insulation quality. According to the method, at a distance from the surface of a first hollow-core building element slab (1, 2) is adapted at least one planar layer (3) of material and between said material layer (3) and the intermediate space (5) remaining between said building element slab (1, 2) are adapted spacer members (4) of a substantially resilient material which separate said material layer and said building element slab from each other. The air contained in said intermediate space (5), together with the resilient spacer members (4), forms a spring combination capable of attenuating sounds transmitted through said building element slab. According to the invention, the sound insulation quality of said spring combination is improved by connecting said intermediate space (5) to the cavities (6) of said hollow-core building element slab. Such an embodiment makes it possible to produce hollow-core slabs with a high sound insulation quality from high-strength material.