Railway expansion joints - Expansion joints - Alga Flex-TW
The railways expansion joints have the following functions: they allow movement between the decks, they permit drainage and prevent the percolation of the rain, they give a structural continuity to the slabs, avoiding the penetration of the ballast into the gap, they prevent the transmission of stray electrical currents. The TW Algaflex joint for railways in seismic areas, has been ratified by "Ferrovie dello Stato" and complies with all specifications. The Algaflex joints are made of
dielectric rubber elements, vulcanised to the inner metallic structure. This structure, which acts as anchor and reinforcement, is completely covered by rubber. The joint, guaranteed for 10 years, is resistant to oils, grease, petrol, salts and sand. Heat, exposure to the sun, cold and snow do not cause early ageing phenomena.
