Case Study 01 : Fire Cladding Stock Tank
Altrad NSG Limited were awarded the contract for the refurbishment of the fire protective coating to a Methyl Chlorine stock Tank by INEOS Chlor Vinyls.
The project required the removal of existing cementious fire cladding, blasting cleaning to SA2½ ISO 8501-1:1988 and spray and hand application of a thick film epoxy intumescent coating to achieve a fire case of 2 hour part pool and part jet fire.
A scaffold enclosure was erected to provide a habitat including the installation of heating and dehumidification for the application of the specialist coatings.
The work was completed on time and in budget during one of the worst winters on record.
Case Study 02 : Construction of New Sulphuric Acid Converter
The project was for the replacement of a Sulphuric Acid Converter Vessel for INEOS Enterprises on Runcorn Rocksavage Works.
The COMAH registered (Control of Major Accident Hazards Regulations 1999) Sulphuric Acid Plant is located on a site adjacent to chlorine and chlorine derivative processing systems which added an additional risk to the project as chlorine has the potential to cause a failure in stainless steels.
To reduce the risk of chloride contamination from the atmosphere affecting the Stainless Steel, the vessel was constructed within an encapsulated scaffold.
The 22.6m high, 8.4m diameter stainless steel vessel was designed by Kvaerner Chemetics and constructed by Cordell under the management of Aker.
Altrad NSG Limited successfully completed the very complex access and insulation challenge at the Ineos site in Runcorn, Cheshire in December 2010. The convertor had to be constructed to a very tight deadline and presented a number of construction challenges. The new convertor had to be installed almost adjacent to the existing convertor in a very tight space and with a number of chemical hazards present. The new vessel was to be situated on a new reinforced concrete foundation and fabricated and built whilst the plant remained operational to reduce production losses with connecting pipe work being completed during a brief outage.
The vessel was fabricated in sections off site, for delivery and assembly during a twenty seven week programme on site.
NSG were commissioned by AKER
Solutions Ltd of Birchwood, Warrington, Cheshire to design a
freestanding scaffold structure 24m in height and 16.4m in
diameter, cylindrical in shape with the added challenge of a
removable roof, which was completely water tight and could be built
to a challenging construction programme deadline. The structure
also had to be capable of withstanding storm force winds, lightning
strike and snow.
Case Study 03 : Workington Train Station
Following the floods in Cumbria in 2009 which forced the closure of Workington station and the building of a temporary station, Northern Rail and Network Rail invested in the refurbishment of Workington Rail Station.
Altrad NSG Limited were contracted to undertake the painting of the platform canopies and columns, including the removal of existing paint by grit blasting.
Case Study 04 : Painting of Calder Heli-Deck
This was the first opportunity that Altrad NSG Limited had been given to undertake work offshore for Centrica energy, and it was a challenge that was readily accepted by the team concerned with the delivery of the contract.
The specification involved the complete removal of the existing coating using a UHP water vacuum deck blast and the application of Leigh's Paints Epidek M339 Hi Profile High Build Deck Coating and the marking out and reinstatement of the identification markings. All works had to be completed to strict specifications as laid down by the Civil Aviation Authority.
Due to the isolated nature of the platform great attention to detail was required during the planning phase concerning the logistical supply of all the specialised plant, labour and materials, to ensure that everything arrived onto the platform when required in order to complete the contract within the timescales and budget allowed.
All work was completed to a high standard of quality on time and within budget, with no health and safety issues.
Case Study No.5 – Painting of Sphere using Rope Access
NSG were contracted to apply a weather-proof protective coating to the exposed firecrete on the upper hemisphere of a Sphere. The spheres sit in an exposed position on the edge of the Mersey estuary and the firecrete was starting to suffer damage through exposure to the prevailing elements. Two coats of Leighs M905 and C137 were applied over five days by the rope access team, consisting of two rope access technicians and a supervisor.
Areas that require access at height such as the Spheres are examples of where NSG use Rope Access techniques to provide a safe and innovative solution which offers value for money to our client. We regularly deploy IRATA trained rope access operatives to carry out Painting, UTC Inspection and Insulation Works.
Case Study 06 : Repainting of steel work to underside of road bridge flyover
Altrad NSG Limited were contracted by Balvac to prepare and repaint steelwork to the underside of a road bridge flyover for Wirral Borough Council. The works involved the preparation of all steelworks to the national highways schemes specifications, this included the removal of existing coatings using a combined method of wet and dry blasting techniques followed by a three coat system utilising the Leigh's paints Transgard paint coatings
The major problem to overcome during the course of the works, was the existing paint coatings that contained a high level of lead concentration. This meant that the highest level of medical monitoring of our operatives had to be maintained and additional levels of protection put in place so no contamination of the local environment occurred. It also put additional constraints on the waste generated to ensure that it was correctly handled and disposed of by a licenced hazardous waste handler.
All work was completed within the ten week schedule to a high standard of quality and within budget, with no health and safety issues
Case Study 07 : A historic landmark in Liverpool
Lewis's traded from 1856 to 1991 when its owner went into
administration. It was subsequently used for other purposes until
finally closing in 2010.
It is now part of the £160m Central Village development - a mixed-use retail, office and leisure scheme which is expected to contribute £100 million to the city's economy when it is complete and will create approximately 3,000 jobs.
Altrad NSG Limited are providing access scaffold for the subsequent cleaning and window replacement to the façade elevations, as well as internal scaffolds for demolition, lift shafts and risers.
The final phase of regeneration works at the iconic Grade II listed building, which is part-funded by the European Regional Development Fund, is being delivered by Merepark Construction Ltd, with work having started on the Accor Adagio Hotel, retail, leisure and office space as well as the new open-air link which runs through the Lewis's Building and connects Renshaw Street to the heart of the development.
This project comes with the normal City Centre problems, including loading and unloading, as well as pedestrians and transport. In order to minimise contact with the general public on one of Liverpool's busiest pedestrian routes, Altrad NSG Limited installed the base lifts out of hours.
This prestigious scheme, whilst providing an excellent marketing opportunity, also tested all aspects of our business from design, through health and safety to time related performance. We are pleased to have worked with Merepark on the continuing redevelopment of the City Centre.
£4m of NWDA funding was awarded to Central Village, specifically for the offices element of the Lewis's building and exterior refurbishment including stone cleaning.
Case Study 08 : Pier Head – Liverpool Waterfront
Altrad NSG Limited was contracted to erect support scaffolding to hold a 22 tonne drilling kit for a project at Liverpool's iconic waterfront.
The Pier Head project was the first of its kind for NSG as engineers had to make sure that the structure could withstand the high tides of the River Mersey.
The scaffolding enabled contractors Balfour Beatty to correct cracks in the waterfront wall which could have hampered plans to build a new landing stage. The old landing stage was destroyed in 2006 after freak weather conditions.
Altrad NSG Limited erected a cantilever drop scaffolding
structure, calculating the drag force of the tide to ensure that
the structure would hold in high tide.
We had to ensure that an engineering team was on site every day to put the boards out and bring them back in as they couldn't be left due to the tide.
Case Study 09 : Norris Green Youth Centre Liverpool – Charity Project
Altrad NSG Limited donated time and resources to a charity
building project in one of the UK's most deprived areas.
A group of seven Altrad NSG Limited workers were part of a team working for Children In Need's DIY SOS: The Big Build, to totally renovate a youth centre in Norris Green. The dilapidated building was in need of a major overhaul to be able to maintain its vital facilities and services to children and teenagers in the area.
Altrad NSG Limited was delighted to provide our time and
scaffolding products pro-bono for all the external works such as
roofing, cladding and guttering. Our staff also got stuck into the
cleaning and tidying operation to make sure the project was
completed on time.
The project ran for nine days in total - usually a project of similar scale to the youth centre is estimated to take between six to eight months to complete and would cost around £1m. The centre has at least 50 children and young people attending every evening and it is now open seven days a week. The project was shown on primetime BBC1 as part of Children In Need 2011.
Other generous local businesses helping with project included George Roberts North West, HE Simm, Liverpool Mutual Homes, Lovell, Bramalls and Fulwood Roofing.
Case Study 10: Overlooking the Lewis’s Building from The Radio City Tower, Liverpool.
The iconic Lewis's building in Liverpool, now a part
of the £160m Central Village Development is soon to see completion
of our work; Altrad NSG Limited's scaffolding and access solutions
has enabled substantial renovation work to take place, from window
replacement along the façade elevations, to internal scaffold for
demolition, lift shafts and risers.
This photo was taken from the Radio City tower and encapsulates the scale and capabilities of our operations.