T-REX C 25/C 50

Description

The “T-REX / C 25” and “T-REX / C 50” pre-formed shells are elements made of a blend of refractory ceramic fibres, suitable for the fire protection of steel tie rods. They consist of a core with a thickness of 25 or 50 mm and a 0,25 mm thick galvanised steel sheet facing, 1000 mm long. For “T-REX / C 25”, the turnbuckle protection is made with a similar element 500 mm long. For “T-REX / C 50”, the protection of turnbuckles smaller than Ø 40 mm is made with a similar element 1000 mm long; and with a special turnbuckle cover 500 mm long for turnbuckles of larger diameter. The insulation and the galvanised steel sheet facing are supplied separately in order to facilitate installation operations. The pre-formed shells prevent the temperature of the steel tie rods from rising, keeping it below 350°C, and can therefore be applied under any load condition. Tests were carried out both on tie rods with a diameter of 16 mm and on tie rods with a diameter of 30 mm, allowing interpolation of the data. Extensions to diameters up to 35 mm are possible.

Technical characteristics

Application and installation

Fit the insulating element of the pre-formed shells onto the tie rod. Close the metal casing tightly and drive the self-drilling screws into the pre-drilled holes at 200 mm centres. Continue in this way, slightly overlapping the metal casing with the previous shell. Where hangers supporting the tie rods are present, cut the metal sheeting and notch the insulating element, filling any slots with the same material. NOTE: The shells and the sheet metal cladding are supplied separately.