Flexible Noise Protection-System under expansion joints MAURER GU-f - Noise Protection-System under expansion joints The combination of low noise emission lamella-expansion joints (diamond shaped elements) with the herewith presented system GU-f underneath the joint „GU-f” provides an optimum reduction of noise emissions at expansion joints. The patented system GU-f is an improvement of the previously used noise-insulation of expansion joints and provides the following advantages:  Modular structure – can be handled by one person  Combination of reflexion + absorption of noise ensures high efficiency  Retrofitting underneath of existing expansion joints is possible  Durable design – infinite number of opening and closing movements possible  Optimum supplement to expansion joints that leads to noise protection at their surface

Flexible Noise Protection-System under expansion joints  Next to the required guarantees longevity, the combination of the employed material an efficient reduction of the impulse like and low frequency noise emissions which have a far reach of disturbance. Fig. 3 displays the efficiency of the system also in the low frequency range (measured at the abutment underneath the insulation). Measurements demonstrated a noise reduction effect far above the required 15 dB(A).  Due to its modular structure, this noise protection system is also suitable for retrofitting underneath existing joints.  Opening...