As part of global reaction to increased terrorist threats the UK Government has led the way in developing improved new standards and new measures to protect otherwise vulnerable infrastructure.
Insitu concrete security barrier evolved from the proven technology of insitu concrete highways barrier that is such a prolific sight along the worlds highways; indeed it is the default product specified for use along the UK's motorway central reserve.
Clearly the performance requirements for a perimeter security barrier are a little different to a highway vehicle safety barrier. However the key physical properties inherent with an insitu concrete mass provide major advantages over other systems and include: in reality a maintenance free life, high performance, competitive cost, minimal foundation and acts as a base for complimentary products such as fences, CCTV and lighting.
Extrudakerb has been a major force within the UK's slipform paving and in-situ concrete barrier market for over 30 years and are able to extend this wealth of experience into the security sector.
Today, the company boasts a world leading managerial and site workforce, extensive in house design and fabrication facilities as well as the UK's largest fleet of specialised barrier slipform paving machines and associated formwork and specialist equipment. No other company is better equipped to provide support to infrastructure owners and operators as they look to install and improve perimeter security barriers.
The company remains absolutely focused in the core value established over 50 years ago that success is built upon innovation.
Extrudakerb's Concrete Paving Division supports customer supply chain with a complete portfolio of services including design, estimating, planning, construction and certification.
Our resources include full Auto-CAD design facilities, indemnified professional designers and technical query response. We also provide full project specific programmes, schematics, drawings, paver set up and formwork configuration as well as audited health and safety, quality and environmental procedures.
Working closely with key major material suppliers, we have developed unique concrete mix designs that maximise quality and productivity without increasing impact on our environment.
7.5t vehicle (N2/N3) up to 90° impact at 64kph and 80kph
Extrudakerb provide a complete in-house team that undertakes design, estimating, planning, construction, ancillary product integration and completed product certification.
Insitu concrete perimeter security barrier provides high performance, low maintenance, cost effective passive infrastructure protection from vehicle borne threats.
The system has been successfully tested to BSI PAS68:2010 and therefore has the ability to thwart a follow on attack by a second vehicle.
The system is surface mounted requiring little if any foundation preparation as side from the minimal embedment required at termination locations or points where the alignment of the barrier changes.
Unlike fences the system is completely resilient to failure caused by hand held cutting equipment and when installed in combination with a secondary traditional security fence fixed to the top provides a unique single line defence from both vehicular and person-borne attack.
During the typical life cycle of the insitu concrete system the barrier is designed to provide a minimum 50-year maintenance free life; an extremely important consideration for many site operators where the disruption caused by routine maintenance or whole scale system replacement can be highly disruptive, compromise site security and of cause lead to increased operating costs.
The system can be rapidly installed with long lengths constructed by machine where productivity of a single crew can exceed 250 linear metres per 8 hour shift. Short lengths, where access is limited or sections featuring complex changes in alignment are constructed using traditional fixed formwork.
Aside from a range of tested and approved fences that can be fixed to the top of the barrier ancillary components are available that compliment the core insitu concrete system including PAS rated access gates and turnstiles as well as CCTV and attack sensing devices.
Integral ducts can be incorporated within the body of the insitu concrete barrier to allow a route for a protected secure maintainable cableway; alternatively cable trays or ducts can be affixed to the non-impact, secure face of the barrier.
Although primarily an off the shelf design an element of bespoke modification to the core system may be required to ensure compliant installation on some occasions. Extrudakerb are able to identify at an early stage if any special attention is required to allow integration of a site specific feature within overall design.
Where required site surveys, project specific design and project specific construction drawings are provided.
Extrudakerb provide a complete in-house team that undertakes design, estimating, planning, construction, ancillary product integration and completed product certification.
All works are undertaken within the scope of Extrudakerb's rigorous health, safety and environmental systems in order to ensure the companies ISO 9001, 14001 and 18001 standards are strictly adhered to and Client aspirations are met.
Extrudakerb's experienced management team ensures seamless integration with Client operational demands: a core principle is held that success is built upon open and clear communications; this principle is maintained throughout the company and the construction process.
With extensive and class leading resources available planning is a key element within overall group and individual project execution. Planning extends to and incorporates our carefully selected supply chain; it is vital that these key products and services are delivered on time and on budget.
On site construction is undertaken under the control of a dedicated Site Supervisor. This key role provides vital links between our head office management team, our experienced and directly employed workforce, our on site supply chain partners and our Clients appointed Project Manager.
Training and certification of our workforce is an ongoing process to ensure competency, safe working practices and staff evolution.
Construction of the insitu concrete barrier is undertaken using one of two distinct processes: where space and length of product permit machine lay or where this mechanised process is impractical conventional fixed formwork.
Slipform construction is a now relatively commonplace construction process and is most commonly used to construct motorway safety barrier. It is a high output process and particularly suitable for perimeter barrier construction.
Slipform construction can realise production rates as high as 40 linear metres per hour, although typically outputs of 120 to 170 linear metres per shift should be expected.
Extrudakerb operates one of Europe's largest fleets of slipform paving machines and has over 30 years experience of this process operating across Europe.
Fixed form construction is undertaken in house using bespoke modular steel shutters. Extrudakerb carries an extensive stock of formwork including various radius and corner profiles. In the event that a scheme requires bespoke formwork arrangement then shutters are designed and fabricated in house.
Experienced in house construction teams, modular steel formwork and specialised in house transport and lifting equipment ensure quality construction at unusually high outputs: typically a single gang will produce around 20 to 30 metres of completed barrier per shift.
Within a relatively short period Extrudakerb have already built up an enviable portfolio of satisfied high profile Clients within this new and specialised sector.
The skills developed and experiences enjoyed within the highway sector lend themselves to construction of a similar base product within the different environment of infrastructure perimeter security.
Having been a part of the design and construction of the samples provided for destructive testing Extrudakerb understand the details that must be maintained to ensure that product constructed meet as a minimum the performance levels to which they are certified.
Being able to innovate and react to changing Client or project requirement is a vital part of our success story; such levels of flexibility can only be provided by a strong team with a wealth of experience and access to the latest equipment and techniques.
The value of our supply chain partners is fully appreciated and constructive interaction is encouraged at all levels.
As with our highway safety barrier business Extrudakerb have moved quickly towards a unique one stop shop for its new and expanding portfolio of Clients offering not only provision of the core insitu concrete security barrier but also a range of accessory products including fences, gates, pedestrian access, bollards, blockers, CCTV integration and lighting.
Our portfolio includes Clients within the nuclear, power generation, commerce and aerospace industries.
Our carefully selected site workforce is security cleared and familiar with working inside sensitive and controlled environments.
Due to the tragic rise in events using vehicles as attack weapons, there is a greater demand for hostile vehicle mitigation (HVM) products.
PAS 68 is a publicly available specification (PAS) for impact testing and rating hostile vehicle mitigation products such as bollards, blockers and barriers used for security and counter-terrorism purposes.
The BsecB system achieved the following PAS 68 rating.
The system has been successfully tested to BSI PAS68:2010 and therefore has the ability to thwart a follow on attack by a second vehicle.
The system is surface mounted requiring little if any foundation preparation aside from the minimal embedment required at termination locations or points where the alignment of the barrier changes.
During the typical life cycle of the insitu concrete system the barrier is designed to provide a minimum 50-year maintenance free life; an extremely important consideration for many site operators where the disruption caused by routine maintenance or whole scale system replacement can be highly disruptive, compromise site security and of cause lead to increased operating costs.
Along with a range of tested and approved fences that can be fixed to the top of the barrier, ancillary components are available that complement the core insitu concrete system including PAS rated access gates and turnstiles as well as CCTV and attack sensing devices.
Extrudakerb have already built up a portfolio of satisfied high profile Clients within this specialised sector.
Having been involved in the design and construction of the products provided for the initial destructive testing, Extrudakerb understand the details that must be maintained to ensure that the product constructed meet as a minimum, the performance levels to which they are certified.
As with our highway safety barrier business, Extrudakerb have moved quickly towards a unique one stop shop for its expanding portfolio of Clients offering not only provision of the core insitu concrete security barrier but also a range of accessory products including fences, gates, pedestrian access, bollards, blockers, CCTV integration and lighting.
Our portfolio includes Clients within the nuclear, power generation, commerce and aerospace industries.
Our carefully selected site workforce is security cleared and familiar with working inside sensitive and controlled environments.