Sika provides long term refurb solutions
Older buildings or structures can be subject to premature deterioration, unexpected and uncontrolled cracking caused by corrosion and severely compromised aesthetics. If its structural integrity or load-bearing abilities are affected, it is vital that the structure is refurbished, restored and strengthened to ensure that it’s fit for the 21st century.
o, how can we repair, maintain and extend the life of our nation’s ageing buildings and structures in the most cost effective and reliable way? With over 100 years’ experience, Sika offers a range of products, extensive knowledge and technical expertise to meet the needs of virtually every refurbishment project – from concrete repairs to basement waterproofing to flooring solutions.
S Renovation potential
Following the huge rise in concrete construction during the 1960s and 70s, many of these ‘pioneering’ buildings have since fallen into states of visible decay. Sika offers an extensive range of repair and protection solutions – including mortars, coatings, corrosion inhibitors, reinforcement corrosion protectors and embedded galvanic anodes – to rehabilitate and restore concrete surfaces to their original quality. As well as improving the aesthetics of buildings, Sika can also deliver efficient and reliable structural strengthening systems. Using its fibre reinforced polymer (FRP) plates, fabrics and post- tensioned systems, the company provides market leading solutions for increasing the load capacities of beams, columns, walls and slabs in concrete substrates.
Making good our existing buildings A good example of the renovation potential of the post war modernist tower block is just a stone’s throw from London’s Columbia Road Flower Market. Designed by renowned architect Berthold
George Loveless House
Lubetkin in 1958, George Loveless House was suffering from significant structural damage caused by chloride penetration and the subsequent corrosion of the steel reinforcement. Tower Hamlets Homes needed a proven means of repairing the damage and protecting the steel reinforcement in two twelve storey buildings. Following a careful assessment of the properties, the consulting engineers specified a range of concrete repair products from Sika including high performance mortars, corrosion management systems and sealants. The concrete repair system specified offered Tower Hamlets Homes a cost effective and reliable way to repair the damaged areas and extend the life of the building. These systems have an impressive track record which goes back more than 15 years, and conform to the performance requirements of the more recent EN standards, demonstrating Sika’s historical commitment to providing long term technically correct construction solutions.
Digging deep
All buildings must be protected from the bottom up. And with approximately 75% of building failures attributed to water ingress, a high quality below ground waterproofing solution is absolutely crucial. Backed by 90 years’ experience of advanced waterproof technologies, the Sika 1 Pre-Bagged Waterproofing System prevents water penetration entirely with a single application. The high performance tanking system can be applied internally or externally, to all walls and floors. The key ingredient is the Sika 1 admixture – a colloidal silicate liquid that reacts to moisture by expanding into a jelly-like substance and blocking all gaps and capillaries for a watertight seal for the life of the building as stated by the BBA.
Seamless solutions
After achieving watertightness, Sika can complement this with a range of flooring systems designed with long term performance in mind, utilising the best available technologies for a seamless, fast solution. The growth of resin flooring has presented the specifier with a low cost, hardwearing, seamless and long term alternative to vinyl, carpet or timber and is proven for refurbishment projects in the industrial, commercial and public sectors. Each of these markets have specific requirements in terms of traffic and mechanical wear, chemical resistance, temperature, slip resistance, impact
16 feature
The Sika 1 Pre-Bagged Waterproofing System prevents water penetration entirely with a single application
resistance, permeability to liquids, fire resistance and rapid curing. Minimal downtime during installation or maintenance is also a critical factor when specifying resin flooring and is a key driver in terms of the operational performance of facilities. With more than forty years’ experience in the flooring industry Sika has a range of high performance resin floor systems, suitable for the most demanding of environments. By looking at the needs of the customer, Sika has developed systems which take into account design life, operational requirements, construction joints, floor to wall connections, surface design and installation details.
The Sika range utilises the best available technologies, including liquid applied soft resin flooring systems, SikaFloor epoxy and polyurethane systems, PU mortars of the PurCem range and PMMA resins out of the Pronto range, and sets industry standards for quality and durability. Each product is designed with long term performance in mind, created to offer specific resistance to the environment in which it is applied – from continuous foot traffic in public buildings to heavy machinery in manufacturing and vehicles in car parks. Specialist products offer hygienic and decorative solutions for hospitals and food processing facilities along with anti-static finishes for specialist assembly facilities. Sika’s ComfortFloor systems are extremely tough, durable and have a life expectancy to match and potentially exceed more traditional floor finishes. Its long life expectancy and the ease of maintenance through simple refresher coats contributes to the major share of the life cycle costs.
Building & Facilities Management – October 2013
Front Cover Spotlight
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