Insametal S.A. distributes and assembles fonoabsobentes concrete panels the maximum sound market classification A3-B3. The acoustic screen is composed of concrete reinforced concrete HA-45 / P / 12 arid silicon, with steel mesh of B500 6 mm. every 15 cm. And till 13 cm. porous concrete grecado, formed by siliceous aggregate (4-8), washed sand and cement.
The concrete noise barriers are installed between metal profiles HEB / HEA quality S275JR according to EN 10025 are galvanized and termolacados as required in EN 1461 and in 15773. These are arranged vertically until the necessary height in each project, with a distance between profiles varying according to the type of work.
Like the previous, These panels are placed between HEA / HEB.