This paper describes several experimental results of the vibration response characteristic making use of the Concrete Slab. The flowing conclusions have been obtained. First, the test bodies are homogeneous. Second, effect of damping of damping material is different with the material of one dimension and the two-dimensional material. Third, there is dissipation of the energy to the support structure by the way of supporting it. Last, Effect on a vibration reduction by putting a damping material could be confirmed.
