Case Study: Colas – East Midlands Airport

Celtest provides testing services for unique East Midlands Airport project

Project

East Midlands Rehabilitation Runway project

Client

Colas was appointed by Galliford Try, which is the framework management contractor for Manchester Airport Group (MAG), to resurface East Midland Airport’s 2.9 km-long runway.


Colas delivers sustainable solutions for the design, building and maintenance of the UK’s transport infrastructure. Clients include Highways England, Local Authorities, MoD, Aviation Industry and the Private sector; contractors, consultants, architects and utility companies. Celtest has a long-standing business relationship with Colas, including work at Mount Pleasant Airport, Falkland Islands, in 2010 and 2015.

Challenge


The surfacing works were scheduled during day and night shifts across five consecutive weekends, through full-shut-downs (36 hours) of the runway.


Prior to laying the new surface, the old Marshall Asphalt had to be planed off. The new BBA surface was then laid using six paving machines, with five laying in echelon formation to ensure no cold joints were created in the surface. In addition, material in the central 22m keel section was replaced to a depth of 165mm. Three on-site mobile asphalt plants produced up to 800t/hour.

Colas has used Celtest for 30+ years, supplying expertise materials testing services on numerous airfield projects, including site lab., staff and equipment.


The East Midlands Airport project required a stringent materials testing regime. In addition to onsite training before the project started, Celtest staff received on-site inductions, with risk assessments and method statements (RAMS) devised for all elements of the project.


The project began on 5th November 2016, and Celtest operated four shifts per weekend, with day and night teams, and two supervisors. Prior to starting the project, Celtest had been involved with testing the laying trials in the compound area. At East Midlands Airport, the Celtest team mobilised a 24’ x 8’ mobile laboratory including a fully covered sample preparation area manned by three technicians.


Within the mobile laboratory compliance testing included: Flakiness Index, Particle Size Distribution, Moisture Content, Maximum Density, Binder & Grading analysis, Bulk Density, Void Characteristics, and thickness of bituminous cores.


Major challenges for the teams included working within the tight schedules demanded by the 36-hour shutdown of the runway, the cold December temperatures, and long weekend shifts from midnight Saturday to lunchtime Monday. Security was high, with MAG security clearance, ID passes, and a Radio Frequency Identification (RFID) card scanned at a manned security gate when entering/exiting the airside area.

Results

 Close liaison with Celtest at the pre-contract stage ensured the client’s requirements were understood, enabling solutions to potential challenges to be planned in advance. The pre-project testing in Celtest’s mobile site laboratory ensured smooth operation after the main contract started, which proved essential to meet the stringent time constraints.


To assess performance and compliance, routine on-site tests were carried out on mixtures throughout plant mixing, during laying, and on the compacted course.


In-situ tests included: Compaction control using a pavement quality indicator (PQI); Surface accuracy using a 3-metre long beam; measurement of the Surface Macro-Texture Depth by Volumetric Patch technique; Coring; Laying records/temperature and wind monitoring.

Conclusion

This time-sensitive project was the first time a UK commercial airport had completely closed a runway over a weekend for resurfacing, and the runway was handed back to the client with comprehensive test results demonstrating full compliance with specification requirements.


The project was on time, and had zero safety incidents. Celtest has built up a unique working relationship with Colas’ company and staff, which enables progression of preliminary works at tender stage, efficient use of resources, swift resolution of any problems and completion of projections on time. Celtest is uniquely placed in the industry with its range of UKAS accreditation, and the ability to provide project resources and testing.


As David Harradine, Colas’ Technical Development Manager Airports, Infrastructure & Projects, says: “The East Midlands project has been one of the most high profile and logistically challenging contracts Colas have ever undertaken in the UK, and having everyone working together to ensure we delivered the outputs and quality required has ensured a fantastic outcome in completing in just 5 weekends.”


He added: “We are delighted with the finished product. I would like to personally thank you all for the effort and commitment that you all provided for the East Midlands project over the past five weekends. All of your staff were great lads and working the long hours over the weekends they all performed admirably.”

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Case Studies

Please view our case studies for a detailed picture of a variety of recent projects.

 Colas: Celtest provides testing services for unique East Midlands Airport project This time-sensitive project was the first time a UK commercial airport had completely closed a runway over a weekend for resurfacing. The runway was handed back to the client with comprehensive test results ... read more

 Colas: Celtest rapid response ensures timely completion for significant West Midlands project Colas formed a joint venture with VolkerFitzpatrick to deliver the runway extension at Birmingham Airport, and realign the dual carriageway adjacent to Birmingham Airport. Challenges included working at night, limited possession, and immovable hand-back times… read more

 Hutchinson Engineering: Specialised Celtest Service in Remote Location  A wind turbine site on a prototype rock-anchor base was installed and fitted some time ago on a Hebridean island, and now required an upgrade to the latest model. New anchors were needed to allow the wind turbine to be safely and securely refitted… read more

 SRB Civil Engineering: UKAS certification ensures quality results The A477 Improvement scheme bypassed villages, crossed the River Hydfron and passed through several environmentally sensitive areas, including the Taf Valley. To ensure the highest professional standards, the company engaged to carry out materials assessment and testing had to be fully certified… read more

 Hawk International: Essential testing regime ensured project success in Sierra Leone The varied rock composition at the quarry project needed to be carefully assessed, and tested to critical specification; assistance was also required with selecting the raw material’s best use as a product… read more

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Case Study: Colas – West Midlands Project

Celtest rapid response ensures timely completion for significant West Midlands project

Project / Client

Colas is an ambitious, award-winning business, which delivers sustainable solutions for the design, building and maintenance of the UK’s transport infrastructure. In operation for almost a century (it was founded in 1923), the company’s unrivalled expertise is a result of wide experience gathered over those years, along with the strength derived from being part of the world-leading Colas Group. 

The Colas Group operates in every aspect of construction and maintenance for roads and other types of transport infrastructure (air, rail and marine transport), as well as on projects involving urban development and recreational facilities. The Group’s excellent R&D facilities provide Colas with access to innovative new products, processes and ideas. 

While Colas’ head office is in West Sussex, it has more than 20 offices and depots across the UK, and employs more than 2,000 people. Clients include the Highways Agency, local authorities, MoD, aviation industry and the private sector: contractors, consultants, architects and utility companies. 

Challenge

Following a competitive tender process run by Birmingham City Council in 2012, two companies were chosen as the preferred joint venture contractors for two major West Midlands construction projects – the A45 Transport Corridor Improvement Scheme and the Runway Extension at Birmingham Airport. Colas formed a joint venture with VolkerFitzpatrick to deliver the runway extension at Birmingham Airport and realign the A45 dual carriageway adjacent to Birmingham Airport. 

The previous runway was only 2,600m long, restricting the airport’s capacity to handle direct long- haul routes to destinations such as China and South Africa. The project was planned to increase the runway length by 405m runway, and constructing new taxiways and tie-ins. 

Colas’ responsibility included the provision of expertise to supply and lay the asphalt for both highway and airfield works. This required the supply and erection of the largest mobile asphalt plant in the country – 280 tonnes per hour – supplying in excess of 1000 tonnes per shift. Where possible, all the asphalt was laid in echelon using up to three paving machines at the same time. 

Colas has previously contracted with Celtest on similar work. As Steve Cant, Colas’ Technical Manager – Asphalt & Quarries, says, “Colas has used Celtest services for several years. Since 2006, the company has worked closely with us on numerous airfield projects, supplying site and laboratory staff and equipment.” 

The Celtest team on this Colas West Midlands project included: Bruce Johnstone (testing bituminous material in the Celtest mobile laboratory, adjacent to the mobile bituminous plant); Nigel Wager (lab and site testing); and, Rhydian Jones and Richard Wyn Jones, both involved in site testing. 

A major challenge for the four-man team was to work within the tight schedules demanded by airfield schedules and operations. This meant day-time sleeping, to enable working night- time shifts, with operational hours restricted to between 23:00 to 06:00. 

Steve Cant says: “Airfield work is always challenging: limited possession and immovable hand back times means constant pressure to ensure work continues as planned, with the airfield able to open on time the following morning and operate on schedule.” 

Results

Close liaison with Celtest during the tendering and early contract-award stages ensured Colas’ needs were understood, and potential challenges anticipated, with solutions planned in advance. 

The design and formulation of Marshall Asphalt and Stone mastic asphalt (SMA) was undertaken at Celtest’s Bangor laboratories. At the on-site mobile laboratory, compliance testing included: stability and flow, maximum density, percentage refusal density, flakiness index, moisture content, and binder and grading analysis. 

To assess performance and compliance, additional in-situ work included testing for compaction control, surface regularity using rolling straight edge and three-metre beam, surface texture by macro texture method, sampling for air voids, and laying records/temperature control. 

As Steve Cant adds: “Celtest is sufficiently resourced to quickly adapt to the changing needs of the contract, particularly where programme has been changed and working plans altered.” 

Conclusion

In 2014, Birmingham Airport welcomed the UK’s first direct flight from China into a non- London airport – inaugurating its recently extended runway as the service departed for its five thousand mile journey back to Beijing. 

Steve Cant comments: “We have worked with Celtest on major contracts for the past eight years, and have built up a unique working relationship with the company and staff. This close relationship enables us to progress preliminary works at tender stage and swiftly resolve problems as they arise. 

Celtest is uniquely placed in the industry with their range of UKAS accreditation, and the ability to provide all of our needs without recourse to other sub-contractors.

Download Case Study: COLAS

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Case Study: Hutchinson Engineering

Multi-capability Celtest team combines specialized equipment with a remote location for successful project completion

Project

In operation for more than thirty years, Hutchinson Engineering was originally formed in 1979 to service the Cheshire petro-chemical industry; it continues to be based in Widnes.

The company deployed the first micro-generation wind turbine structure in 2007, expanded its facilities the following year to accommodate additional wind turbine items, and shipped structures to the USA in 2009.

Over the next five years, as the company’s product range expanded, it gradually developed as one of the world’s leading manufacturers of small-wind turbine towers.  It also started to produce structures for the mid-wind sector, for turbines up to 1MW.

 In 2012, Hutchinson Engineering installed its first 60Kw wind turbine structure on the Isle of Coll, in the Inner Hebrides of Scotland. The specific design for the wind turbine’s anchor system had to bear in mind the site location (remote, island), composition (rock) and the wind (strong, variable).

Challenge

As part of a continuous improvement exercise, a new base was to be fitted on Coll; this required new anchors to be installed, which are essential for securing the wind turbine base.

Hutchinson Engineering had previously contracted with Celtest on similar work.

As Adam Slonker, Project Manager at Hutchinson Engineering, says, “We’ve used Celtest in the past, and they’ve always proved professional, capable, and responsive to our demands. We don’t have the specialised in-house staff to perform this job, and we knew Celtest could do it. So, we arranged the date, and they went and did it.”

A major challenge for the Celtest team was location. Coll is an island approximately 13 miles long and four miles wide, off the west coast of Scotland. Its all-year residents number about 200, with tourists increasing that number in the summer months. While the weather on this small island is changeable, it does have a relatively mild climate and a lot of wind.

As the anchor system had to withstand the extreme weather and the forces that come with it, it was essential to ensure the new anchors were tested and approved for long, continued use on this remote island. The working relationship with the farmer helped in the time-sensitive achievement of this goal.

Results

The Celtest team - Neil Ainow and Gerallt Jones - travelled to Coll, with the intention of completing repairs and testing within five days (Monday to Friday), allowing time for difficulties in such a remote place. The daily ferry service (from two and a half to three hours) from Oban can be delayed by bad weather - both getting to and from the island. The island’s infrastructure is basic, with minimal mobile phone coverage, no public transport, and challenging road surfaces. However, the job was completed in 2.5 days.

The Celtest team had previously approached the landowner directly, making all the local on-site arrangements.

“They were comfortable doing so,” adds Adam. “And that professionalism simply made the job easier for us, as our head office is in Cheshire. Knowing the team on the ground had the full cooperation of the land owner was very reassuring.”

The site location on Coll was on top of a rock outcrop, with almost 360 degree uninterrupted views, and open to the southwest prevailing winds off the sea. On arrival, the farmer provided transportation, and got to see the team working.

“I was impressed by their methodical, careful approach,” said Lloyd Austin, Design Engineer at Hutchinson Engineering. “That’s the way I operate too, and it made me feel reassured that their work would be safe and secure, and well tested.”

The Celtest team sawed off the previously installed prototype, repositioned the base plate, re-drilled the eight holes and re-positioned the anchors.

Once installed, the new eight-anchor system was secured with specifically designed adaptors. The Celtest team then did a high-level pull-out test, using specialised equipment to preload the anchors with a 30-tonnes force for a five-minute pull test. The anchor system passed, and the team could wrap up the successful job, and catch the ferry back to the mainland for the long drive home.

“The turbine is working again, we’re saving money, and everything is in place just as it should be,” adds the landowner.

Conclusion

Adam concludes, “As usual, Celtest was easy to deal with, providing quick, effective results. They took care of everything needed to successfully complete a specialised job in a remote location, with the professionalism that we expect. We would not hesitate working with them again.”

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Case Study: SRB Civil Engineering

UKAS certification ensures quality results

Project

The A477 trunk road is a major route that forms part of the Trans European Road network, linking the United Kingdom and Europe to West Wales and Ireland via the ferry port at Pembroke Dock. 

Valued at an estimated cost of £47.3m, the A477 St. Clears to Red Roses Improvement scheme started on 31 January 2012. The 9.3km scheme was designed to improve road alignment, increase safety standards and improve journey times and reliability. 

Back in September 2009, the Welsh Assembly Government appointed SRB Civil Engineering Ltd (SRB), as the Early Contractor Involvement (ECI) ¹  for the Scheme. SRB is a joint venture company, formed in 2002 with two of Ireland’s leading civil engineering contractors, Roadbridge and John Sisk & Son. 

Founded in 1967, Roadbridge operates in Ireland, the United Kingdom, Poland, South Pacific and the Middle East. It has a proven track record for delivering major projects in the transport, renewables and energy, utilities, commercial, industrial, waste management and leisure sectors – on time and on budget. The company’s core ethos: “Not just to meet client expectations, but to exceed them, making us the partner clients want to work with.” 

John Sisk & Son is a family business, with more than 150 years’ experience, and operations in the United Kingdom, Poland and the United Arab Emirates. It is a member of the international SISK Group. The company applies rigorous quality control throughout the life of each construction project: “We take our quality, safety and environmental responsibilities extremely seriously and pride ourselves on our standards and record, a shared commitment laid out in our Zero philosophy.”   

Challenge

Environment protection, heritage conservation, and bad weather conditions throughout much of 2012 and 2013, were major construction challenges. 

While major reprogramming maintained progress, the challenges could have seriously affected work projections. However, Celtest’s pro-active analysis, and quality testing enabled the project to stay on track. 

As Roland Tarrant, Roadbridge Quality Manager says, “UKAS certification of all testing was a major project requirement. Celtest’s UKAS certification and experience were major factors in them being appointed as our testing house.” 

The poor weather, in particular, meant that fast and accurate testing was essential to gauge material quality and its suitability for various construction requirements. To ensure material remained suitable for use, initial plans were amended to suit the particular soil types and the weather. This included working on rock areas as opposed to clay areas for much of the poor weather, and requiring haul routes to be constructed through the site from granular material won from cuttings.

SRB ensured a sustainable approach throughout the project:

Results

From 2012 to project completion, Celtest had up to four technicians working on the site, testing soil, concrete, cement-bound granular material and bituminous material. 

Due to the fast-changing project requirements, operatives needed to be fully prepared and capable as soon as they were on site. Roadbridge had previously worked with Celtest, and knew the company’s excellent reputation. 

We are particular when it comes to testing houses, as we’ve had a number of poor experiences with other testing labs in the past,” says Roland Tarrant. “On a number of occasions, Celtest’s testing facilities and materials’ knowledge were major factors in allowing us to make essential on-site decisions.” 

He adds that Celtest site personnel gained an immediate understanding of the project’s needs, were very helpful, and integrated quickly into the team: “The personnel sent to site were willing to work within our team and take instruction and also suggest improvements. Timekeeping was excellent – often a point of contention with sub-contractors.” 

Celtest’s pro-active approach included the support and materials knowledge back at the Bangor head office. 

As Roland Tarrant comments, “We felt very secure knowing that Gwynfor and Hefin were always available to provide extra, knowledgeable backup if necessary. For example, we faced some issues with a CBGM production proposal from site-won rock. The Celtest head office support allowed us to make informed decisions when deciding a way forward.” 

Conclusion

Under the Considerate Constructors Scheme, the A477 St Clears to Red Roses Improvement site received regular external, independent audits. The Code of considerate practice covers how the site maintains a good appearance, how it works with the local community, how the environment is protected, how the safety of workers and visitors is ensured and how the welfare of workers on the site is maintained. 

The site secured a Bronze award in the national site awards in 2013, placing it in the top 10% of considerate construction sites (CCS) in the UK. After a January audit the following year, the site subsequently won a national CCS Silver award for 2014. 

SRB worked within a stringent ISO9001, ISO14001 and OHSAS 18001 integrated management system. Roland Tarrant adds, “Our organisation places a high emphasis on safety, and there were no issues with Celtest personnel.” 

As Roland Tarrant concludes: “Celtest’s on-site and off-site testing is consistently professional, always with the emphasis on providing accurate results above everything else. The company was an essential part of the project.” 

He adds, “Throughout the project, we were always confident that Celtest’s testing was always of the highest possible standards. In my experience, this is not something we can ever compromise on.” 

¹ Early Contractor Involvement (ECI) contracts: This form of contract allows supplier engagement at an early stage of a project, in order to draw in industry experience at the design and preparation stages. ECI contracts remain an option for major highways schemes where there is significant scope for input from the supply chain. Suppliers’ engagement will be on a partnering basis. Their knowledge and abilities to influence project decisions will have maximum impact in terms of project timing, quality and cost.
Source: Gov.UK. Guidance: The Highways Agency; tendering for projects. 
ONLINE: gov.uk/the-highways-agency-tendering-for-projects Accessed April 2014.

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Darren concludes, “Celtest proved to be an inspired addition to the quarry team, as they provided everything required to successfully manage the specification, which in turn allowed Hawk to do what we do best without worrying about these issues. We would not hesitate in requesting them again should more work arise.”

Conclusion

Darren comments, “The Celtest site staff was always easy to deal with, and any support required from Celtest’s UK team was received quickly and was effective.” Darren adds that when there was some financial difficulties due to late payments from the client, the inevitable knock-on effect was satisfactorily solved with the co-operation and understanding of the UK team.

Commenting on the UK’s team integration into local Sierra Leone life, Darren says, “The Celtest SL team became a firm part of our own Hawk SL team, getting involved in various charities and other public relations work that seems to be a part of any overseas project. Mark was part of the Hawk team that competed in the Makeni Marathon, and he turned in a very creditable time and raised some money to boot. Both he and Nigel were involved in football matches organised against local teams – the fact that Mark was an Evertonian didn’t go against him in these matches!”

Darren concludes,

“Celtest proved to be an inspired addition to the quarry team, as they provided everything required to successfully manage the specification, which in turn allowed Hawk to do what we do best without worrying about these issues. We would not hesitate in requesting them again should more work arise.”

 

Being a relatively small laboratory, it was essential the expatriate staff could resolve any possible problems and issues. These included work-related problems, and the entire experience of working 3500 miles away from home. It was essential that the staff could ‘think outside the box’ when requests for certain information were made by the client. It was simply not possible to contact a supplier and pick up specific equipment as required, because the long shipping times would have prevented progress. The team also trained local workers to assist.

Darren says he was pleased there were no issues, with subsequently few affects on production. He adds: “Once the testing regime was installed, it worked very well and we found it easy to work with the laboratory team. Results were issued quickly and re-screening of any failures was not a major issue. The staff proved to be very inventive in the manufacture of items to allow testing to go ahead.”

Other challenges the team needed to overcome were the extreme heat and rain during the wet season, and the various different languages among the various teams. However, as Darren adds, “Language barriers were quickly overcome once we all understood what Mark was saying – and as long as he spoke a bit slower, because the ‘scouse’ accent was then not quite so pronounced.”

Case Study: Hawk International

Essential testing regime ensured project success in Sierra Leone

Project

In operation for more than 40 years, the Hawk Group employs more than 700 people worldwide, with a group turnover exceeding £70 million.

In Sierra Leone, Hawk International (Hawk) has worked with African Minerals Limited (AML) for more than three years. AML is a minerals exploration, development and mining company, and is currently developing and mining the world-class iron ore deposit at Tonkolili, together with its related rail and port infrastructure. The project is the largest employer in Sierra Leone, and is set to become the largest contributor to the country’s GDP.

Hawk was involved in both the development of the mine, and construction of the railway used to deliver the ore to the port, and on to the marketplace. Hawk provided plant, operators and management expertise to assist the AML project team with all aspects of the construction project. At its peak, the company had more than 200 items of equipment on hire to AML, and more than 400 expatriate employees on the roster.

Challenge

AML had decided to further develop the rail and port infrastructure at Pepel port to handle the expected additional tonnage from the mine. The rail carries the ore from Tonkolili mine to the port, and is AML’s only means of exporting the ore to market.

The Tonkolili site in Sierra Leone
The project at AML’s Rofanye quarry involved the provision of rock and aggregates for the rail and port construction works. It required rock blasting and crushing from Rofanye Quarry, and at the Tonkolili site, for future expansion works of the mine and to provide additional space within the tailings area.

The Rofanye works involved the removal of more than 200,000M2 of overburden to uncover the rockhead, followed by rock blasting and crushing to various specifications. The three-year rolling contract had an annual minimum requirement that varied from 543,720 to 1,291,033 tonnes of product; the final total was 2,656,686 tonnes. These products included rail ballast, G6 (200mm down material for rock fill), G4 (sub-base type material), <19mm single size rock for concrete works, <6mm (crushed sand) for concrete works, and crusher dust to be used as sand. A quantity of blast rock and blockstone was to be provided direct from the blast face.

As in any quarry, the rock varied in its composition, which was a cause for concern. It was critical that the raw material could be accurately and quickly assessed, allowing for its best use.

The main challenge was to ensure the raw materials were tested and approved on a daily basis, which involved maintaining a close working relationship with the Crushing team, and especially the Production Manager.

Results

The laboratory equipment, and the Celtest team (Mark Culbert and Nigel Wager), was mobilised in April 2013. Prior to the team’s arrival, Hawk had constructed a laboratory to Celtest’s specification, including air conditioning and a fully covered sample preparation area.

Site sample preparation areasAfter the team arrived on site, the laboratory was fully commissioned within a short time, allowing rapid assessment of raw materials by testing to the specifications as outlined. The team was also instrumental in selecting the raw material’s best use as a product.

As Darren Cumming, General Manager for Hawk International, says, ”The Celtest team was essential to the project’s success, not only with the testing regime to ensure that products were within specification, but also understanding the various specifications that we had to work to. Some products were to UK specs, while other products were designed using South African specs; it was essential that we understood these requirements and produced good quality material.”

Celtest calculated and supplied the equipment required for the on-site testing, and also brought in the laboratory manager and assistant to do the testing.

Nigel Wager at AML's Rofanye quarry
Being a relatively small laboratory, it was essential the expatriate staff could resolve any possible problems and issues. These included work-related problems, and the entire experience of working 3500 miles away from home. It was essential that the staff could ‘think outside the box’ when requests for certain information were made by the client. It was simply not possible to contact a supplier and pick up specific equipment as required, because the long shipping times would have prevented progress. The team also trained local workers to assist.

 Darren says he was pleased there were no issues, with subsequently few affects on production. He adds: “Once the testing regime was installed, it worked very well and we found it easy to work with the laboratory team. Results were issued quickly and re-screening of any failures was not a major issue. The staff proved to be very inventive in the manufacture of items to allow testing to go ahead.”

Other challenges the team needed to overcome were the extreme heat and rain during the wet season, and the various different languages among the various teams. However, as Darren adds, “Language barriers were quickly overcome once we all understood what Mark was saying – and as long as he spoke a bit slower, because the ‘scouse’ accent was then not quite so pronounced.”

Conclusion

Darren comments, “The Celtest site staff was always easy to deal with, and any support required from Celtest’s UK team was received quickly and was effective.” Darren adds that when there was some financial difficulties due to late payments from the client, the inevitable knock-on effect was satisfactorily solved with the co-operation and understanding of the UK team.

Commenting on the UK’s team integration into local Sierra Leone life, Darren says, “The Celtest SL team became a firm part of our own Hawk SL team, getting involved in various charities and other public relations work that seems to be a part of any overseas project. Mark was part of the Hawk team that competed in the Makeni Marathon, and he turned in a very creditable time and raised some money to boot. Both he and Nigel were involved in football matches organised against local teams – the fact that Mark was an Evertonian didn’t go against him in these matches!”

Darren concludes, “Celtest proved to be an inspired addition to the quarry team, as they provided everything required to successfully manage the specification, which in turn allowed Hawk to do what we do best without worrying about these issues. We would not hesitate in requesting them again should more work arise.”

 

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Anchor Installation services from Celtest

Celtest installs and tests a large range of mechanical, chemical, resin and grout-based anchor systems for safe, secure fastenings and structural reinforcement or repair.  Anchors are suitable for a range of construction materials, including concrete, soil, and masonry.

Celtest staff are approved installers for several of the world’s leading manufacturers of anchor systems, including:

Being an approved installer means we’re trained and experienced in the deployment of these systems.  We are also approved by the Construction Fixing Association to test all types of general-purpose anchors and fixings.
You can rest assured there’s an anchor system ideally suited for your project, and that you’re in capable hands for the installation of that system with Celtest.

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Celtest Ltd Main Office

Phone: (+44) (0)1248 355269  Fax: (+44) (0)1248 351563

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Quality materials testing, diamond core drilling and sawing, and controlled demolition

Formed in 1980, Celtest offers quality materials testing, diamond core drilling and sawing, and controlled demolition services to the construction, quarrying and civil engineering industry.  Our experience in quality management, together with our skilled staff, have helped Celtest grow rapidly to become one of the foremost materials testing laboratories in the UK.

Celtest’s North Wales laboratories are exceptionally well equipped for construction materials testing and are accredited by UKAS to ISO/IEC 17025:2005 (General Requirements for the Competence of Testing Laboratories) for the majority of tests performed both at our laboratories and on clients’ sites.

We help support the local communities as the vast majority of our employees live in the area. Here you can download our policy statements on health and safety, quality, and the environment, as well as our UKAS accreditation certificate and testing schedule.

Call Celtest today on +44(0)1248 355 269

 

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Work With Us

Use Celtest to fill the voids in your own testing service.

Perhaps you have your own testing service but it does not cover all the tests and services you need.  Or maybe you are a testing house needing to outsource some work to fulfil your clients’ requirements.

Celtest can work with you seamlessly and confidentially to ensure you’re covered. Whether it’s for materials testing, diamond drilling or sawing, or controlled demolition, we can help. 

With a high regard for sustainable working, Celtest has a vast range of modern resources available, and offers a fast turnaround, giving you complete peace of mind.

Call Celtest today on +44(0)1248 355 269

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Including controlled demolition and radiological sites

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Choose Celtest for materials testing – no matter where you are in the world

Celtest has years of experience safely handling and delivering a high-quality testing service to international clients.  Worldwide, members of current staff have worked in Europe, the Far East, Africa and the United States.

With our vast range of UKAS-accredited testing services, Celtest can give your materials that vital seal of approval for use in the UK and Europe, and quality recognition in many other countries.  Celtest handles the whole process for you, from materials collection and transport, to testing and reporting back, with a fast turnaround.

Call Celtest today on (+44) (0)1248 355 269

 

Implement recognised management systems with Celtest

Celtest has been developing management systems for many years – not just our own, but for our clients’ too!  It’s our job to understand quality, environmental, health and safety and integrated management systems, so who better to help you implement these standards in your own organisation than Celtest?

We’ll work alongside you to help you reach and maintain accredited status for the following:

These standards help future-proof your business, enabling you to better handle changing regulations and expectations from the industry.  They also give your organisation a recognised seal of quality, and will raise your standing with your customers and stakeholders.  Contact Celtest and we’ll help you improve your management system protocols.

Call Celtest today on +44(0)1248 355 269

 

Laboratory Testing

Laboratory materials testing from Celtest

test

Site Testing

On-site materials testing from Celtest

Diamond Drilling & Sawing

Including controlled demolition and radiological sites

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Diamond drilling & sawing: Cutting, drilling and controlled demolition in radiological areas

Celtest has an experienced team of operatives trained and officially approved to work in radiological areas, such as active nuclear power stations and decommissioning sites.
Services provided include controlled demolition, diamond drilling, concrete cutting and remotely operated equipment. We work in a sustainable way to reduce waste and aim to cause minimum disruption.

Techniques used by Celtest for controlled demolition in radiological areas include:

With qualified technicians and a range of equipment in house, Celtest offers clients peace of mind with a complete solution from one supplier.

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Our diamond drilling & sawing services

Diamond drilling & sawing: Safe and effective Controlled Demolition from Celtest

Celtest has all the resources needed to carry out controlled demolition.  We achieve this with minimal disruption to your project while adhering to all the latest health and safety regulations, as well as best practices in sustainability.  Celtest has years of experience carrying out controlled demolition services in construction and civil engineering environments, including radiological areas (hyperlink to radiological page).

Controlled demolition techniques carried out by Celtest include the following:

Celtest’s high-standard service covers the whole of the UK and will help ensure your projects remain on time and within budget.

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Our diamond drilling & sawing services

Diamond drilling & sawing services from Celtest


Let Celtest be your on-site partner for diamond sawing and drilling. Our extensive resources include a range of modern, specialist equipment, vehicles, and highly skilled operatives. We work sustainably and adhere to all health and safety regulations.

A comprehensive service from one supplier makes life easier for you – you need only make one phone call.
Diamond sawing can be used to cut reinforced concrete and asphalt.  Celtest’s diamond core drilling has a diameter range from 12mm to 1000mm and can be used for:

Celtest also installs a range of mechanical, resin and grout anchor systems. We are approved installers for Hilti, Liebig, Weldgrip and Cintec. With UK coverage and years of experience, Celtest’s high-standard service will help ensure your projects remain on time and within budget.

Our diamond drilling & sawing services

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Site Testing: Technician secondment and equipment hire


Do you want to conduct your own tests but lack the specialist resources?  Celtest provides a comprehensive range of modern, efficient equipment for hire. Trained, technical personnel can be seconded to carry out in-situ or laboratory tests at clients’ premises.

Contact Celtest today and check out our competitive hire rates.

 

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View our Site Tests

Visit the following pages to get a full lists of available tests.

Site Testing: Pavement testing

Click to view our UKAS Schedule of Accreditation.

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View our Site Tests

Visit the following pages to get a full lists of available tests.

Site Testing: Environmental Monitoring and Testing

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View our Site Tests

Visit the following pages to get a full lists of available tests.

Site Testing: Concrete structure tests

Celtest technicians are fully trained to work in confined spaces.  Tests marked with a U are UKAS accredited

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View our Site Tests

Visit the following pages to get a full lists of available tests.

Site Testing: Concrete tests

We provide experienced technicians to assist you with sampling and test and testing fresh or hardened concrete on site. Delivery of Ready Mixed Concrete (RMC) or Site Batched Concrete (SBC) can be tested for tests such as Concrete Strength, Workability or Slump, Density or Air Content.
Our structure testing team are on hand to test any concrete structure for visual condition survey, delamination survey and concrete strength tests. Backed by our well-equipped UKAS accredited concrete materials testing laboratory we can provide all the services you require under one roof.

Click to view our UKAS Schedule of Accreditation.

 

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View our Site Tests

Visit the following pages to get a full lists of available tests.

Site Testing: Bituminous tests

Click to view our UKAS Schedule of Accreditation.

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View our Site Tests

Visit the following pages to get a full lists of available tests.

Site Testing: Soil and Aggregate Tests

Click to view our UKAS Schedule of Accreditation.

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View our Site Tests

Visit the following pages to get a full lists of available tests.

On-site materials testing from Celtest

Celtest has the skilled technicians, specialist equipment, and its own fleet of vehicles to work at any site in the UK and Ireland.
Our technicians take samples, undertake in-situ testing or inspections for all types of construction and civil engineering projects.

We operate a rapid response service and clients come back to us again and again, thanks to our high quality of service and experience in on-site materials testing.

Call Celtest today on
+44(0)1248 355 269

 

View our Site Tests

Visit the following pages to get a full lists of available tests.

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Lab Testing

Click to view our UKAS Schedule of Accreditation.

Mortars, Screeds and Masonry

Slate and Natural Stone:

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Lab Testing: Concrete

Celtest offer a wide range of concrete testing and sampling services covering various British (BS) and European (EN) standards, of which the majority are accredited by UKAS.

Our well-equipped laboratories are designed to deal with large quantities of work, allowing us to provide our clients with the fastest possible turn-around times.
With over 35 years of experience in materials testing, you can be assured that our work is carried out to the highest level.

For a comprehensive list of our concrete testing laboratory services please Click here.
For a comprehensive list of our aggregate, soil, concrete & bituminous testing services please Click here.

For more information please contact us.

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Lab Testing: Bituminous materials

Celtest offer a wide range of bituminous testing and sampling services covering various British (BS) and European (EN) of which the majority are accredited by UKAS.

Our well-equipped laboratories are designed to deal with large quantities of work, allowing us to provide our clients with the fastest possible turn-around times.
With over 35 years of experience in materials testing, you can be assured that our work is carried out to the highest level.

For a comprehensive list of our bituminous testing laboratory services please Click here.
For a comprehensive list of our aggregate, soil, concrete & bituminous testing services please Click here.

For more information please contact us.

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Aggregate Testing

Celtest offer a wide range of aggregate testing and sampling services covering various British (BS), European (EN) and American (ASTM) standards, of which the majority are accredited by UKAS.

Our well-equipped laboratories are designed to deal with large quantities of work, allowing us to provide our clients with the fastest possible turn-around times.
With over 35 years of experience in materials testing, you can be assured that our work is carried out to the highest level.

For a comprehensive list of our aggregate testing laboratory services please Click here.
For a comprehensive list of our aggregate, soil, concrete & bituminous testing services please Click here.

For more information please contact us.

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Lab Testing: Soil

Celtest offer a wide range of soil testing and sampling services covering various British (BS) and European (EN) of which the majority are accredited by UKAS.

Our well-equipped laboratories are designed to deal with large quantities of work, allowing us to provide our clients with the fastest possible turn-around times.
With over 35 years of experience in materials testing, you can be assured that our work is carried out to the highest level.

For a comprehensive list of our soil testing laboratory services please Click here.
For a comprehensive list of our aggregate, soil, concrete & bituminous testing services please Click here.

For more information please contact us.

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Laboratory materials testing from Celtest


Let Celtest be your specialist partner in materials testing.  Backed by unrivalled in-house resources, Celtest undertakes a vast range of UKAS-accredited testing for national and international clients.  We offer a high standard of service to tight deadlines, and we are always ready to go that extra mile. That’s why Celtest is the testing service of choice for many customers, who come back to us again and again.

Complete Testing Solution

With just one phone call, Celtest can be your complete testing solution for the following materials:

Call Celtest today on +44(0)1248 355 269

 

View our Lab Tests

Visit the following pages to get a full lists of available tests.

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Celtest provides professional quality materials testing and consultancy services for UK and international construction & civil engineering organisations.

 

Here at Celtest we undertake UKAS-accredited site sampling and testing, as well as laboratory testing, on a range of materials including aggregates, bitumen, soil, natural stone and concrete. Our diamond drilling, sawing, and controlled demolition services complement testing, giving customers an effective solution from one supplier or one point of contact.  We also help organisations develop management systems to meet international standards.

Work with us

With unrivalled in-house resources, fast turnaround, and a drive towards sustainable working, Celtest has become the partner of choice for many organisations, both large and small.  Established in 1980, Celtest is now one of the UK’s leading materials testing companies.

Call Celtest today on +44(0)1248 355 269

Laboratory Testing

Laboratory materials testing from Celtest

test

Site Testing

On-site materials testing from Celtest

 

Diamond Drilling & Sawing

Including controlled demolition and radiological sites

 

Management Consultancy

Management Systems Consultancy

Implement recognised management systems

 

Sign up to our Newsletter

Keep up to date with our latest news!

Follow @CeltestLtd

Copyright © 2010 - 2017 Celtest Company Ltd. Registered as a company in Wales. Company No. 1533370. Registered Office: Trefelin, Llandegai, Bangor, Gwynedd. LL57 4LH