The noise barrier consists of two aluminium sides with mineral fibers between as insulating material (aluminium sandwich), it satisfies completely the German specifications ZTV LSW-88. It is salt and sea water resistant, invulnerable in UV-radiation and belongs to the non flammable material (category B1/ DIN 4102). It can be painted with any RAL colour.
The noise barrier TECO is certified by the Institute of Essen (Germany).
Sound isolation : 26 dB (DIN 52210)
Sound absorption : greater than 8 dB (DIN 52212)
Stability : according to the static calculation and bending equipment
Back wall (bearing pattern) : 1,5 mm
Absorptive side : 1,0 mm
Sound isolation material : mineral fiber plate 100 kg/m3
thickness d = 40 mm
Impermeability : Rubber sealant incorporated in the girder
Specific weight : 14,3kg/m2
Typical dimensions : 4960/3960/2960/1960x500x125