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DEMOLITION ASBESTOS MANAGEMENT BUILDING WORKS DRILLING & SAWING

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Page 1: DEMOLITION - Clifford Devlin · system which is certificated against the international standard, OHSAS 18001. It is driven by risk assessment. For every project a risk assessment

DEMOLITIONASBESTOS MANAGEMENTBUILDING WORKSDRILLING & SAWING

Page 2: DEMOLITION - Clifford Devlin · system which is certificated against the international standard, OHSAS 18001. It is driven by risk assessment. For every project a risk assessment

The Clifford Group has built-up a comprehensive portfolio of pre-construction services to the property sector. They can be integrated into a package for enabling complex re-development projects or used individually at various stages in construction and refurbishment programmes.

Targeted investment in state-of-the-art plant and equipment and the continuous development of our workforce ensure we have the skills and resources to deliver projects that always meet, but often surpass, our customers’ expectations. Professionalism, reliability and attention-to-detail are the attributes which they recognise and appreciate.

The organisation is characterised by a ‘hands-on’ management team which is able to bring vast experience in many disciplines from demolition to asbestos removal and building work that enables us to successfully project manage and carry-out multi-disciplinary enabling programmes.

ISO 14001EMS 501245

ISO 9001FS 36933

OHSAS 18001OHS 501246

Qualifiedvia Audit

Link Up ID 24121

Page 3: DEMOLITION - Clifford Devlin · system which is certificated against the international standard, OHSAS 18001. It is driven by risk assessment. For every project a risk assessment

ABOUT THE COMPANY

Clifford Devlin is a privately-owned, family-run business which has been providing specialist services to the construction industry for nearly 50 years.

Our portfolio of disciplines are mostly applied during the enabling phase of construction projects and include asbestos removal, strip-out, temporary works and structural demolition. We also provide post-demolition services including land remediation, landscaping, building and refurbishment. Our services can be provided on a standalone basis or integrated into a package which allows us to manage multi-disciplined projects for our clients.

The company’s development has been characterised by steady, incremental growth, targeted investment in plant, equipment and human resources.

We have adopted the systems approach to controlling our business processes and implementing best practice. The company’s integrated management system has been audited and certificated against ISO 9001 (quality), ISO 14001 (environment) and OHSAS 18001 (health & safety). This gives us the platform to deliver projects on-time, to-budget and in a safe, controlled and environmentally responsible manner.

We operate nationally from our Head Office in London and regional office in Bristol. Our activities in the Gulf States are coordinated from offices in Dubai.

Page 4: DEMOLITION - Clifford Devlin · system which is certificated against the international standard, OHSAS 18001. It is driven by risk assessment. For every project a risk assessment

Demolition has been Clifford Devlin’s core service for over 40 years. We carry out all types of demolition and dismantling involving every conceivable structure from medium-rise office blocks to schools, hospitals, cinemas, infrastructure projects and residential accom-modation.

We offer the full range of demolition disciplines from site establishment and temporary works through soft strip, structural demolition, groundworks, foundations, excavation and land remediation.

We have particular experience of complex, city-centre projects where confined space and the proximity of sensitive receptors (e.g. residential property, offices, retail outlets, pedestri-ans) present unique challenges. As a result, we have developed sophisticated techniques to minimise disruption to the local community and our impact on the environment.

Our methodology is often better described as deconstruction as it involves the progressive, internal dismantling of the structure using mini excavators supplemented by hand-held equipment which is very labour-intensive. The age and architectural significance of the many of the buildings involved, often requires complex enabling work to be carried out such as the design and installation of façade retention schemes which is an area in which we specialise.

We have been members of our trade association, the National Federation of Demolition Contractors, since 1972.

DEMOLITION

Page 5: DEMOLITION - Clifford Devlin · system which is certificated against the international standard, OHSAS 18001. It is driven by risk assessment. For every project a risk assessment

ASBESTOS MANAGEMENT

Clifford Devlin has a Division which is dedicated to managing asbestos. We have been providing a comprehensive range of services to manage this potentially hazardous material for over 25 years.

Our asbestos survey team can carry out type 1, 2 and 3 surveys to locate and identify the presence of asbestos containing material (ACM) and assess the risk to inhabitants.

Our multi-disciplined team of operatives can carry out all types of remedial work to contain, remove and dispose of ACMs. Clifford Devlin is licensed by the Health & Safety Executive to remove and dispose of ACMs. The company is also a corporate member of the trade association, the Asbestos Removal Contractors Association (ARCA).

We operate an asbestos waste transfer station in London which is licensed by the Environment Agency to process up to 30 cubic metres of material per day.

Our accumulated knowledge of the discipline allows us to provide consultancy to help clients comply with their legal duties including the preparation and maintenance of asbestos management plans.

We also offer a range of training courses and seminars to educate clients and operatives in managing and dealing with asbestos. These include:

Asbestos Awareness for Contractors Managing Asbestos in the Workplace Asbestos Remediation

Page 6: DEMOLITION - Clifford Devlin · system which is certificated against the international standard, OHSAS 18001. It is driven by risk assessment. For every project a risk assessment

BUILDING WORKS

Clifford Devlin has a specialist division which delivers consequential builders work packages as well as major refurbishment of commercial and residential premises. Originally created to complete building work in conjunction with our demolition projects, our Building Division has developed into a stand alone service capable of implementing large scale, complex refurbishment projects.

Our services are offered nationally to our clients.

We employ professionally qualified, multi-disciplined teams of project managers and operatives who are able to deliver a comprehensive range of services and skills including:

Site preparation Soft strip Structural steelwork M&E installation Ceilings/partitioning/joinery Flooring Integrated fit-out Decorating Shell and core Category A fit-outs Ground remediation

We are able to offer a complete project delivery role, managing both direct and sub-contracted staff and services through to completion of works.

Clifford Devlin is a corporate member of the Federation of Master Builders.

Page 7: DEMOLITION - Clifford Devlin · system which is certificated against the international standard, OHSAS 18001. It is driven by risk assessment. For every project a risk assessment

DRILLING & SAWING

Our Drilling and Sawing Division uses state-of-the-art equipment and technology to create controlled openings in large concrete structures. These precision techniques provide a cost-effective, flexible, efficient and environmentally-responsible alternative to more traditional methods.

These methods minimise the emission of noise, vibration, dust and debris and are therefore particularly appropriate for inner-city projects where environmental impact is a fundamental consideration.

Diamond drilling is used for creating precision cuts and holes in concrete, masonry, marble, asphalt and block work. It is a non-percussive procedure which emits low noise and vibration and is therefore an environmentally acceptable way of creating circular cavities for the installation of pipes, cables, bolts, load-carrying devices.

We can apply a variety of different sawing techniques to cut and carve flat surfaces in concrete and other construction material for demolition and refurbishment projects:

Track sawing is used to make vertical cuts to create door, ventilation or window openings in walls; floor sawing cuts horizontal flat surfaces in roads, pavements, car parks and bridges. We also use this method for severing basement slabs in demolition projects; wire sawing is used when needing to cut particularly large, awkwardly positioned or heavily reinforced concrete structures such as columns, beams and slabs.

Page 8: DEMOLITION - Clifford Devlin · system which is certificated against the international standard, OHSAS 18001. It is driven by risk assessment. For every project a risk assessment

A4: 210 x 297Bleed 3mm: 216 x 303Cuts 5mm: 226 x 313

HEALTH AND SAFETY

The high risk nature of the work that we do means that health and safety is a fundamental issue to be managed and a core value which is central to the company’s philosophy.

Our commitment is demonstrated by an occupational health and safety management system which is certificated against the international standard, OHSAS 18001.

It is driven by risk assessment. For every project a risk assessment is carried out in which all potentially hazardous elements are identified, documented and submitted to the client and any other interested parties at the tender stage. This forms the basis of any procedures and measures to control safety on-site.

This thorough, systematic approach has translated into excellent performance data and extremely low rates of reportable incidents.

Our success in managing safety has been officially recognised by consecutive gold awards from the industry body, The Royal Society for the Prevention of Accidents (RoSPA). We are members of, or have approval for, all the major construction-industry safety organisations and schemes including the Construction Health & Safety Assessment Scheme (CHAS), Construction Health & Safety Group (CHSG), the SAFE Contractor Scheme and the British Safety Council.

registeredregisteredregistered

Page 9: DEMOLITION - Clifford Devlin · system which is certificated against the international standard, OHSAS 18001. It is driven by risk assessment. For every project a risk assessment

ENVIRONMENT

At Clifford Devlin our policy is always to endeavour to minimise the impact our activities have on the immediate surroundings and their consequences for the wider environment. For most projects we now routinely prepare an environmental management plan which will document procedures to control/monitor pollution and manage waste and energy consumption.

Our experience of working in inner-city locations with proximity to ‘sensitive receptors’ means we have developed sophisticated systems to control emissions of dust, noise and vibration. We regularly monitor emissions throughout the duration of the project to ensure we keep within acceptable limits.

We prepare and maintain Site Waste Management Plans which estimate the quantity of each type of waste expected to be produced and track their recovery and destination throughout the lifecycle of the project. Waste streams are recovered, segregated and either re-used on site (e.g. crushed concrete aggregate) or removed to local recycling centres. We routinely recover and re-use or recycle 98% of the waste we generate on demolition projects. In September 2009 Clifford Devlin became only the second demolition company to sign-up to the UK’s “Halving Waste to Landfill” scheme.

We also routinely calculate and report our energy consumption in terms of CO2 emissions (i.e. calculate our carbon footprint). We also have experience of working on several projects involving BREEAM targets and achieving credits for our site activities.

The level and quality of our environmental reporting is another differentiating attribute. Our Project Close-Out Reports include data about waste management, pollution monitoring data, energy consumption (CO2), and photographic evidence to illustrate our methodology. This can be circulated to all interested parties and is useful for the purposes of environ-mental and regulatory compliance and well as a means of cross-fertilising best practice throughout the supply chain.

Page 10: DEMOLITION - Clifford Devlin · system which is certificated against the international standard, OHSAS 18001. It is driven by risk assessment. For every project a risk assessment

SERVICES IN MIDDLE EAST

Clifford Devlin has expanded the scope of its operations into the Middle-East with the establishment of a permanent presence in the United Arab Emirates.

Significant investment has been and will continue to be made in plant and equipment, to enable the company to resource the two projects that have already been secured and to permit the controlled expansion of its regional capability.

The company will export some of its UK skills-base to be integrated with local labour to provide the Middle-East construction industry with the highest technical standards available in urban demolition.

Clifford Devlin intends to offer services from its current divisional structure in demolition and asbestos management.

For over forty years Clifford Devlin has specialised in delivering logistically difficult, complex, city-centre demolition projects in the UK. The additional challenges that arise from confined space and the proximity of sensitive, local receptors such as residential property, offices and retail outlets require ever increasing levels of safety and environmental management to be implemented to mitigate the potential risks associated with city centre demolition, as well as effects of noise, vibration and nuisance dust emission.

It is the intention of Clifford Devlin to offer in the UAE the same level of expertise, safety and environmental awareness and control measure imple -mentation that is delivered in their projects carried out in the UK.

The company’s Middle-East operations are coordinated from its offices in Dubai.

Clifford Devlin LLCDubai World Trade Centre10th Floor Office 1002Sheikh Zayed RoadP.O. Box 9633Dubai – UAE

Tel: +971 4 332 8853Email: [email protected]

Page 11: DEMOLITION - Clifford Devlin · system which is certificated against the international standard, OHSAS 18001. It is driven by risk assessment. For every project a risk assessment

RAIL SECTOR

Clifford Devlin is able to provide specialist services in the field of trackside demolition.In 2009 we were awarded Link-Up version 2 accreditation which involved an on-site audit of our integrated management systems by approvals organisation Achilles.

This has enabled us to participate in trackside demolition projects involving, among others, the following disciplines: Asbestos removal Bridges and structures Car parks and roadways Foundations and piles Paving and landscaping Timber and metallic structures

We have been involved in several high-profile infrastructure projects including Thameslink (Borough Market), Tower House (Tower Hill Underground Station), Swansea Landore Depot (J Murphy / Network Rail) and Marshall House (London Borough of Brent).

Version 2 of the UK rail industry supplier registration and qualification scheme has been introduced to provide greater diligence into the accreditation process. Link-Up, which was launched in the late 1990s to provide a single common qualification process for suppliers, is shared by Network Rail and over 80 rail organisations. The scheme reflects the additional rigour required for work carried out in the vicinity of rail lines which requires a high standard of health and safety and environmental considerations.

Qualifiedvia Audit

Page 12: DEMOLITION - Clifford Devlin · system which is certificated against the international standard, OHSAS 18001. It is driven by risk assessment. For every project a risk assessment

TIM CLIFFORDJob title: Managing Director

Background: Tim Clifford has been with

Clifford Devlin since leaving college in

1978. He worked as the company

Transport Manager for a number of

years. In 1986 he became a Director of

the company, succeeding to Managing

Director in 1995.

Responsibilities: Tim Clifford has

MANAGEMENT PROFILES

specific involvement in both the pricing of new work and the

development of submission documents that are returned at tender

stage. He is in daily contact with other directors and senior

managers, maintaining a constantly updated knowledge of current

work performance.

In his role as MD, he is responsible for the establishment and

maintenance of corporate policy and procedures for the demolition,

asbestos removal, building divisions and the company’s health and

safety management system.

Other roles include the expansion of corporate client base,

procurement of new work for all divisions within

LES ROSEJob title: Operations Director

Background: Les joined Clifford Devlin

in 1984 specifically to project manage a

major dismantling / deconstruction

programme for the London Borough of

Hillingdon. Following completion he

returned to Head Office and progressed

to his current position.

Les has been involved in the construction industry for over 30 years working with Sindall Construction on

major new housing schemes as a Site Agent for 8 years prior to

joining Clifford Devlin.

Responsibilities: Les is responsible for estimating and overseeing

all major demolition contracts undertaken the company.

MARK COLLINSJob title: Senior Asbestos Contracts Manager

Background: Mark has been involved in the asbestos removal industry for over 25 years. He is now three years into his second spell at Clifford Devlin. His first stint began back in 1994 when he joined as an asbestos removal operative.

Having quickly worked his way through the ranks to Contracts Supervisor then Contracts Manager he took a five-year sabbatical to run his own Asbestos Management operation in 2002 before returning in 2007 following a management re-structure.

Responsibilities: Mark is responsible for estimating, project management, labour utilisation and general contract performance. He oversees all operational aspects of the Asbestos Division as well as providing client liaison.

DAVE HODGKINSJob title: Manager - Demolition Division

Background: David joined Clifford Devlin

in 2008 having spent six years as a

Project Manager for John F Hunt. He has

been involved in the construction industry

for nearly 20 years, having fulfilled

several roles from land surveyor at

Tarmac to Senior Engineer (Shepherd

Hill), Communications Engineer

(Fitzpatrick) and Senior Construction

Manager (Laing Construction).

Responsibilities: David is responsible for the corporate perfor-

mance of the Demolition Division. His hands-on style of manage-

ment means he is involved in all elements of major demolition

projects from tender to hand-over including risk assessment,

preparation of Method Statements, client liaison, sub-contractor and

supplier management and on-site supervision.

Page 13: DEMOLITION - Clifford Devlin · system which is certificated against the international standard, OHSAS 18001. It is driven by risk assessment. For every project a risk assessment

MANAGEMENT PROFILES

PAUL CLARKE-SCHOLESJob title: Manager - Health, Safety,

Quality & Environment

Background: Paul joined the company

in 2001 having spent four years as an

analytical technician and senior analyst

supervising asbestos removal operations.

He has worked in health and safety since

1987, specialising in demolition and

asbestos removal activities.

Prior to his full time appointment with the company in 2001, he worked part time in a consultant capacity.

Responsibilities: Paul’s duties include managing all aspects of

health and safety including training, site inspection and auditing,

CDM safety plans, risk assessments, development of the corporate

Safety and Environmental Management Systems including

registration and accreditation to OHSAS18001:1999 and BS EN

ISO14001:2004 respectively.

He has executive authority to attend and inspect any Clifford Devlin

site, issue authoritative instruction on any matter of health and

safety and ultimately instruct the cessation of work, should he see

fit.

IAIN KIRKJob title: Assistant Health & Safety

Manager

Background: Iain joined Clifford Devlin

in October 2006. As well as support skills

in terms of training, safety and quality

auditing Iain brings specific experience in

the rail sector.

Responsibilities: Iain has executive

authority to attend and inspect any Clifford Devlin site, issue authoritative instruction on any matter of

health and safety and ultimately instruct the cessation of work,

should he see fit. He is also responsible for safety and quality

auditing, site safety inspection, risk assessment, implementing and

maintaining OHSAS 18001 procedures and Link-up Core Module

Requirements as well as managing the internal training of

personnel in a range of activities.

BARRY FISHERJob title: Senior Project Manager

Background: Barry has over 10 year’s

experience of working in the demolition

industry. Following a career in the armed

forces (Royal Engineers) he started work

in demolition and has experience of a

wide range of disciplines. He commenced

work with Clifford Devlin in 2001 and his

ability to learn quickly has seen him

progress rapidly in the company and is

now responsible for some of our most

high profile projects.

Responsibilities: Barry is responsible for the day to day manage-

ment of demolition projects from the receipt of the order to final

handover including planning, procurement, client liaison, mainte-

nance of records, resource allocation, management of on-site

labour, supply chain and generation of final accounts.

Page 14: DEMOLITION - Clifford Devlin · system which is certificated against the international standard, OHSAS 18001. It is driven by risk assessment. For every project a risk assessment

CLIENTS

Our reliability and commitment to carrying out work to specification, budget and time has enabled us to build long term relationships with our customers.

We seek to establish collaborative practices between ourselves, our supply chain oflike-minded, approved and vetted specialist sub-contractors and a client base who have accepted that the partnering philosophy has demonstrable advantages in terms of cost and efficiency.

We work at all stages and for all participants in the construction and property supply chain. These include:

Architects Max Fordham Richard Rogers Partnership Sidell Gibson Tangram Architects

Property Managers / Developers Colliers CRE Land Securities Trident Building Consultancy

Public Sector Camden & Islington NHS Trust Corporation of London Hackney Homes London Development Agency Network Rail Olympic Delivery Authority Thames Gateway Regeneration Whipps Cross NHS Trust Various London Boroughs

Surveyors Atkins Davis Langdon DBK Bak Ltd EC Harris Gardiner & Theobald Gleeds Whitby Bird & Partners

Main Contractors Apollo Group Balfour Beatty Berkeley Homes Carillion Corus Costain Geoffrey Osborne ISG J Murphy Kier Laing O’Rourke Mansell Millers Modus Morrison Nuttall Shepherds, Sir Robert McAlpine Skanska Wates

Project Managers Buro Four CIT Group Citex Group Heery International Mace Group

Page 15: DEMOLITION - Clifford Devlin · system which is certificated against the international standard, OHSAS 18001. It is driven by risk assessment. For every project a risk assessment

The location of Crown House presented a number of logistical challenges which�needed to be overcome. Clifford Devlin were proactive in dealing with the issues�and must be commended on their ability to successfully deliver this complex and�difficult project.�

Steve Kitchen�, Senior Project Manager, ISG Plc�

This 10-storey building located in the heart of�London's Theatreland district, is being redeveloped�into an upgraded office development with retail�space and underground parking.�

To maintain the historical character and continuity of�the area, a façade support scheme was required to�retain the existing listed stone elevations on�Aldwych, Kingsway and Drury Lane.�

As with most projects of this complexity we prepared�an animated schematic presentation based on�photography and architects drawings to illustrate the�deconstruction methodology to the project team.�

We liaised extensively with Westminster Council to�obtain permission for temporary road closures, traffic�diversions and closure of footpaths to enable the�tower crane to be delivered/erected.�

The façade retention scheme was supported on�piled foundations due to the existence of a large�diameter service tunnel associated with the former�Victorian tram link.�

The roof level Cupola and other listed stone�features were carefully dismantled and removed�to a storage facility, to be cleaned, repaired and�rebuilt at a later stage.�

Following soft strip structural demolition was carried�out on a top-down floor-by-floor basis using mini�excavators fitted with various attachments�supported by hand held pneumatic tools from�scaffolded elevations. Basement slabs and founda-�tions were removed and a designed piling mat�installed ready for the construction phase.�

Noise, vibration and emission monitoring was�carried out throughout the duration of the project to�ensure environmental standards were met. All�waste material was segregated and sorted on-site�for removal to nominate recycling centres.�

Discipline:�Demolition & Façade�Retention�Duration:� 8 months�

Completed:� Nov 2008�

Value:� £2.5m�

Architect:�Sidell Gibson�

Principal contractor:� ISG plc�

Client:�Colliers CRE�

Page 16: DEMOLITION - Clifford Devlin · system which is certificated against the international standard, OHSAS 18001. It is driven by risk assessment. For every project a risk assessment

A vacant eight-story office block situated directly�above Tower Hill underground station was acquired�with view to redeveloping it into high quality office�space.�

We were commissioned to carry out the demolition�of its two adjoined buildings. One of the key factors�in the decision to use Clifford Devlin was our�experience of working around London Underground�locations and premises.�

A heavy duty steel plate protection deck with as-�phalt weatherproofing was installed above the first�floor slab level to protect the busy District and Circle�Line station's the ticket hall and primary exit which�remained operational throughout�

Deconstruction was carried out on a floor-by-floor�basis using mini-excavators fitted with concrete�pulveriser/cracker attachments and hand-held flame�cutting and pneumatic machinery.�

Careful hand demolition work was required at the�rear of the site adjacent to a medieval and Roman�city wall which was protected with carefully erected�scaffolding with a plywood covering.�

A comprehensive range of pollution management�measures were implemented to minimise the impact�of our operations on the local environment.�

Diamond drilling and saw cutting techniques which�reduce noise and vibration were used to separate�large retained structures from the basement, ground�and first floor slabs.�

Discipline:�Diamond Drilling/Saw�Cutting//Demolition�Duration:� 6 months�

Completed:� Nov 2008�

Value:� £1.3m�

Architect:�Sidell Gibson�

Client:� Sir Robert McAlpine�(CORE)�

Page 17: DEMOLITION - Clifford Devlin · system which is certificated against the international standard, OHSAS 18001. It is driven by risk assessment. For every project a risk assessment

The empirical data contained in the Clifford Devlin's close-out report for this project�not only allowed us to demonstrate compliance with Site Waste Management Plan�Regulations and BREAM but the photographic evidence of the various stages of�the demolition provide an essential body of reference material that we can forward�to developers and local authorities and applied to future projects.�

Matt Heshmati,�Project Manager, Wates Construction�

The project involved the refurbishment and restora-�tion of St Pancras Public Baths, a Victorian grade II�listed building to create a modern sports facility while�preserving its heritage features.�

Clifford Devlin were commissioned to carry out the�strip-out and demolition of old boiler house and the�core structure of the northern part of the existing�building, to allow the later construction of a new�framed structure. Temporary works were installed to�party walls and the stepped gable for the duration of�the project.�

Structural demolition was carried out using a combi-�nation of hand and machine demolition techniques�(360 degree excavators fitted with breaker attach-�ments), working in a stepped formation, leaving the�structure self supporting at all times.�

Substantial temporary works were installed to sup-�port the roof and retaining walls throughout the dem-�olition works in phase two which involved a number�of structural alterations to the retained structure.�

Sustainability was a key element to this project which�had to achieve a BREEAM 'very good' rating - a�major accomplishment for a building of its age and�heritage. Working closely with Wates, we were able�to help contribute 8 of the 55 credits required by set-�ting targets and calculating our CO2 emissions, seg-�regating and recycling the different waste streams�and controlling pollution.�

Discipline:�Demolition�Duration:� 5 months�

Completed:� Mar 2009�

Value:� £1.2m�

Architect:�Limbrick Limited�

Principal Contractor:� Wates�

Client:�London Borough of Camden�

Page 18: DEMOLITION - Clifford Devlin · system which is certificated against the international standard, OHSAS 18001. It is driven by risk assessment. For every project a risk assessment

We were very impressed with the professionalism that Clifford Devlin displayed�throughout the project. Crucially, they were able to accommodate the additional�un-scheduled archaeological work without extending the timescale. They mini-�mised the environmental impacts of the work so visitors to the Tate Modern and�adjacent buildings were not inconvenienced.�

Peter Chapman�, Associate Director, Native Land�

Project Bankisde involves redevelopment of a prime�location on London's South Bank and adjacent to the�Tate Modern.�

Clifford Devlin was commissioned to demolish sev-�eral warehouse units and other buildings as part of�the £100 million development to transform a former�industrial estate into high quality residential and�retail property.�

Asbestos containing material was removed prior to�the soft strip of all non-structural elements in the�buildings.�

Roof structures were then removed by operatives�assisted by mini excavators and the buildings dis-�mantled by hand and machine demolition techniques�on a floor-by-floor basis. Finally base slabs & foun-�dations were separated and removed.�Previous archaeological work in the vicinity indicated�that the site had high potential for the discovery of�in-situ prehistoric and medieval remains.�

Excavation was carried out to allow the Museum of�London Archaeology Service (MoLAS) to search and�recover any historical artefacts located beneath the�ground slab.�

Voids created by the excavation were back-filled�using the crushed arisings from the demolition and�compacted.�

Various environmental measures were taken to mini-�mise the emission of dust, noise and vibration. All�waste material was sorted on-site and removed for�recycling or crushed and left in-situ for re-use as�backfill or site covering as required.�

Discipline:� Asbestos removal/�Demolition�Duration:� 5 months�

Completed:� May 2008�

Value:� £750k�

Architect:�Richard Rogers�Partnership�

Principal contractor:� Carillion plc�

Client:�Native Land / Grosvenor�

Page 19: DEMOLITION - Clifford Devlin · system which is certificated against the international standard, OHSAS 18001. It is driven by risk assessment. For every project a risk assessment

Clifford Devlin's multi-disciplined approach to demolition served us well on this�project. They identified and removed unexpected asbestos material quickly and�efficiently and their performance in recovering and recycling waste was equally�impressive.�

Keith Johnson�, Senior Chartered Building Surveyor, Atkins Ltd�

Clifford Devlin were commissioned to carry out the�asbestos removal and demolition phases of this £23�million project to build a new secondary school and�technology college at Brays Grove, the previous site�of Brays Grove Community college which closed�down in August 2008.�

The project involved asbestos removal, soft strip and�demolition of nine blocks of 2 and 3-storey buildings�and several outlying sheds. The blocks were�demolished in a stepped formation using long reach�machinery and mini excavators whilst leaving the�structures self-supported at all times.�

The project included the break-up and removal of�ground-bearing slabs, foundations and all�underground ducts and services which were capped�at the site perimeter.�

The principal contractor Wilmott Dixon requested�that any recycled concrete aggregate (RCA) be�processed into 6F2 graded material for use in the�build phase. We implemented the Quality Protocol�devised by WRAP to prepare over three thousand�tonnes of 6F2 which was left on-site for use as a�piling mat.�

As well as concrete aggregate, metals, glass, timber,�plasterboard and tarmac were recovered,�segregated on-site and sent to local centres for�recycling. Over 98% of the waste generated was re-�used or recycled.�

Discipline:� Asbestos removal/�Demolition�Duration:� 4 months�

Completed:� Jun 2009�

Value:� £750k�

Project manager:�Atkins�

Principal contractor:� Wilmott�Dixon�

Client:�Essex County Council�

Page 20: DEMOLITION - Clifford Devlin · system which is certificated against the international standard, OHSAS 18001. It is driven by risk assessment. For every project a risk assessment

Clifford Devlin is a tier-2 demolition contractor for the�development of the 2012 Olympic Park in London.�We were commissioned to demolish two twelve�storey tower blocks with connecting link building�located on the site of the Olympic park.�

The buildings had been previously used as student�accommodation for the University of East London�and were the tallest structures to be to be removed�for the development of the London 2012 Olympics.�

Following a Type-3 survey, asbestos was removed�in controlled conditions from the buildings prior to the�demolition phase. An exclusion/drop zone was�established around the site and fencing and signage�erected.�

Demolition was carried out using a Hitachi 1200�Super Long Reach machine fitted with a rotating�pulveriser attachment, supported by standard 30�tonne excavators for lower floors, link building�demolition and the processing of debris.�

To maintain dust control, the Hitachi 1200 is fitted�with its own irrigation system, so water is supplied�to the machine enabling it to constantly spray as it�demolishes.�

Concrete and brickwork were segregated by�excavators with bucket attachments and moved by�dump truck and loading shovel to the crusher�location. Separate stockpiles were formed of�crushed concrete (RCA), crushed brick and�crushed brick/block (RA).�

Discipline:�Asbestos removal /�demolition�Duration:� 2 months�

Completed:� Mar 2007�

Value:� £870k�

Principal Contractor:� Morrison�Construction�

Client:�Olympic Delivery Authority�

Page 21: DEMOLITION - Clifford Devlin · system which is certificated against the international standard, OHSAS 18001. It is driven by risk assessment. For every project a risk assessment

Blythe House was refurbished to a very high standard which Clifford Devlin�delivered on-time and to specification. RREEF were very satisfied with the�outcome of this project and would happily recommend Clifford Devlin’s Building�Division for similar refurbishment work in the future.�

Joss Dobbie�, Asset Manager, UK Office Fund, RREEF Ltd�

The 3-story, 30,000 sq feet office block on the out-�skirts of Hemel Hempstead required refurbishment�to a very high specification for sale/re-let.�

The project was managed by Colliers CRE for prop-�erty managers, RREEF.�

The building was initially stripped of all fixtures, fit-�tings and non-structural elements back to shell and�core condition.�

A new adaptable VRF air conditioning system was�installed throughout the building, WCs on each floor�and two passenger lifts were refitted.�

The front entrance was completely re-modeled with�a new reception desk, new ceiling grid and fully ac-�cessible raised floors fitted throughout.�

The interior was fitted with walnut veneered doors�and entire building re-carpeted and decorated ready�for turnkey occupation.�

Extensive re-landscaping was carried out to create a�modern exterior environment. This included re-pav-�ing and re-pointing steps, pathways, installing hand-�rails, planting trees and grass.�

The work was carried out by a multi-disciplined team�of over 60 specialist craftsmen.�

Discipline:�Building�Duration:� 5 months�

Completed:� Jan 2009�

Value:� £1.5m�

Architect:� Michael Ross/HXR�(interior); Norman Ullathorne�(landscaping)�

Client:�RREEF�

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Clifford Devlin were excellent partners on this project. Given the intermittent nature�of the pre-refurbishment phase they were very responsive, making themselves�available at short notice as locations became accessible. The work was done�promptly and efficiently.�

Graham Starling�, Project Manager, Tweeds Project Management�

The £20 million refurbishment of Kingsway Shopping�Centre involved the re-design of its entrances and�the creation of an internal mall to transform the retail�complex into a modern shopping experience.�

Surveys of the retail units found asbestos material in�the a variety of places including floor tiles, AIB�boarding, cement products, gaskets, textured and�spayed coatings, fire doors, flash guards and fuse�boxes which needed to be removed before any re-�furbishment work could take place.�

The Shopping Centre needed to stay operational�throughout the asbestos removal which was carried�out in seven separate phases. Each location was�methodically segregated from public areas with�hoardings and the removal of the asbestos�containing materials (ACMs) carried out discretely�inside a fully controlled enclosures to prevent the�emission of asbestos fibres.�

ACMs were removed by trained operatives and�placed in sealed containers for disposal. On�completion the area was thoroughly cleaned and�decontaminated.�

Clifford Devlin worked closely with Kingsway�Centre management throughout to minimise�disruption. The integrity of the whole operation was�monitored by Analytical companies Airtech�Analysis, Tersus & Cortec who carried out air�sampling throughout its duration.�

Discipline:�Asbestos removal�Duration:� 15 months�

Completed:� May 2007�

Value:� £100k�

Client:�Tweeds Construction�Consultancy�

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Clifford HouseTowcester RoadLondon E3 3ND

Tel: 020 7538 8721Fax: 020 7987 1857

Email: [email protected]: www.clifford-devlin.co.uk

Regency HouseBonville Road

Brislington Bristol BS4 5QH

Tel: 0117 3009971 Fax: 0117 3009933

Email: [email protected]: www.clifford-devlin.co.uk