Design Buy Build Issue 37 2019 | Page 54

Structural Concrete Alliance announces 2018 award winner The Structural Concrete Alliance has announced Volkerlaser Ltd as the winner of the 2018 Structural Concrete Alliance Award for Repair and Refurbishment for its repair and strengthening of a marine quayside at King George Docks, Hull. The award was presented by broadcaster, Huw Edwards, at the Concrete Society Awards Dinner held at The Royal Lancaster Hotel, London on Wednesday 21st November 2018. The repair and strengthening works to 12 Quay at King George Docks in Hull presented an extremely challenging project for Volkerlaser. It involved the use of concrete repair, sprayed concrete, cathodic protection and Carbon Fibre Reinforced Polymer (CFRP) strengthening, to provide a unique solution. Access to the quay was restricted by various factors, including; weather conditions, port activity, tide times and most importantly water levels. The water level to the beam soffits was only 500mm, increasing to 900mm at the deck soffit, requiring the development of a bespoke access craft. Since standard CFRP solutions were not feasible, Volkerlaser worked with Curtins to develop a design that used a combination of CFRP wrap, plates and rope (known as fiocco) to replicate the structural workings of a truss beam. Hand placed and sprayed concrete repairs were undertaken and galvanic anodes were installed within the repairs to provide long term protection. Second place was awarded to Kier Design Services - Highways for its innovative delivery solution to complete extensive concrete repairs, re-waterproofing and resurfacing of the A38M – the main link between the M6 ‘Spaghetti Junction’ and the centre of Birmingham. 54