Archetech Issue 24 2016 | Page 99

400 Million years in the making Caithness Flagstone is a natural organic material only found in the far north that blends in, yet transforms your environment. From imposing monuments, pedestrian walkways and buildings to home flooring, worktops, decoration and gift ware no other material is as versatile and no other company as experienced. We can truly transform the way you live. Discover the possibilities visit www.caithnessstone.co.uk today. SIKA PROVIDES TOTAL CORROSION MANAGEMENT AT £12.9M FOUR SQUARES RESTORATION required to safeguard the refurbishment and repair of any reinforced concrete structure – whether it’s for an entire building or a specific problem area. Over the past four years, Southwark Council has invested £326 million into ensuring every one of its homes is warm, dry and safe (WDS) by 2016. At the Four Squares Estate in Bermondsey, South London, Sika has supplied a Total Corrosion Management solution – including over 60,000m2 of Sika Ferrogard 903+ corrosion inhibitor – during the £12.9 million regeneration of four housing blocks providing homes to almost 700 families. Sika is the global leader in concrete repair and protection, corrosion inhibition and structural strengthening systems. Bringing together these combined resources from a single source supplier, all of Sika‘s Total Corrosion Management solutions are supported with the expert guidance Page 99 - Archetech Built between 1971 and 1975, the Four Squares Estate features 691 homes across four near-identical seven-storey blocks – New Place Square, Lockwood Square, Marden Square and Layard Square. Following a structural inspection by consulting engineers Arup, all Four Squares housing blocks were deemed to be structurally sound but large areas of previously uncoated concrete were exhibiting reinforcement corrosion. Working closely with clients Keepmoat and Southwark Council, specialist contractor Barwin and Sika carried out on-site trials using Sika Ferrogard 903+ to demonstrate its ability to penetrate the concrete, reach the steel and restore it to a state of passivity. With the tests showing the system successfully encapsulated and protected the reinforcement, the corrosion inhibitor was included in Sika’s comprehensive Total Corrosion Management specification that also comprised repair mortars and protective coatings. Suitable for a wide range of concrete repair applications from bridges to social housing, car parks to commercial buildings, all products are backed up by a highly experienced technical team who offer expert specification advice and support. With a comprehensive range of repair solutions, Sika has helped to restore all Four Squares Estate buildings to make them warm, dry and safe for many years to come.