Cover plates - Import export

This expansion joint is suitable to absorb longitudinal and transverse displacements of the decks with span up to 25 metres and covering gaps of up to 50 mm. It consists of: • anchoring system consisting of steel anchor clamps (anchor rods) of suitable dimensions and section; • CNR 10018/85-compliant reinforced rubber elements, to be fixed to the slabs, consisting of central bridging plate and two steel bearing elements, subject to prior laying of epoxy resin bedding; • hypalon gutter, fixed to the two slab heads by epoxy plaster. POS. DESCRIPTION MATERIAL A Gap-covering plate Dielectric vulcanized rubber B M12 anchoring system C Gutter Hypalon D Pouring of modified bitumen E Epoxy plaster S Fip 180 F Restoring of base plane Fibre-reinforced cement mortar G Binder H Road surface

This bearing consists of: a lower part (base) of steel in which a cylindrical case is obtained to house the rubber disc; a rubber disc housed inside the base; a steel circular middle part which is housed in a circular case obtained in the lower part. The upper surface is treated to house the recessed and hollow PTFE core, while in the middle there is a ribbing (guide) especially made to absorb perpendicular stresses and determine the sliding direction. By the side of the guide two strips are coated with CM1 type anti-friction material, suitable to produce little friction to the sliding along the groove obtained in the upper part and coated with stainless steel; a sliding upper part, coated on the lower side with a couple of stainless steel plates which also cover the sides of the middle groove required for the case of the guide.