Concrete can do more than you think – and remain absolutely quiet. Concrete suppresses noise, one of the most ubiquitous stress factors of our times. Concrete effortlessly swallows noise, by virtue of its high material weight and its huge bulk density. The construction material absorbs noises and ensures silence in living and working areas. Well-designed concrete structures satisfy the wish for quiet living and provide effective protection against acoustic disturbance from indoors and outdoors. Solid structural elements made from concrete have such effective sound insulation properties that they are even used under the approach paths for airports and near railway lines, to produce the necessary reduction in noise levels.