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ITS A WRAP

Carbon fibre-reinforced plastic bandages are to be used to increase the shear resistance of a major UK highway bridge for the first time, according to specialist supplier Sika. CFRP wraps will be applied this week to the concrete arches of the Calverley River Bridge on the A6120 Leeds ring road, a designated abnormal load route. Leeds City Council chose the CFRP solution after an appraisal found areas of inadequate shear reinforcement in the central arch ribs of the concrete structure, which opened in 1928. Specialist contractor Laser (Civil Engineering) is carrying out the work for main contractor Thyssen. Structural engineer for the CFRP work is Tony Gee and Partners. A full report on the strengthening will appear in a later issue of NCE.

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