Reduction of Noise Emission

  Graphic: City view with buildings and vehicles Copyright: © ISAC

Construction methods with open-pore surface courses contribute significantly to the reduction of noise emissions. The dominant effective factors are air drainage, absorption behavior, acoustic and mechanical impedance, and the texture of the pavement surface up to the pavement evenness. Some of these factors are in trade-off with the targeted mechanical performance of the construction materials. Alternative or modified binders can also be used to resolve this trade-off. However, there is currently a lack of experimental and theoretical approaches to ensure an optimal material design (also acoustically) and a safe and, above all, durable use of these building materials. Cooperations with fluid mechanics and acoustics are possible here.

he benefits of these new approaches must be demonstrated by means of eco-balances, which include not only material-specific parameters (resource consumption, energy input during material production, CO₂ footprint, durability, reusability) but also parameters from the construction process. To this end, the construction process with all its sub-aspects must also be included in the considerations and a concept of a "green building site" developed and a holistic life cycle assessment carried out. Cooperation with the sustainability sciences is possible here.

 

Sample Projects

Long Lasting Concrete Ceilings - Acoustic optimization of concrete surfaces by texturing concrete

Quiet, Innovative Top Layer on Plastic Base