Extrudakerb have for almost 30 years led this evolving sector pioneering first UK slipformed road restraint systems
ECB is a high-performance concrete barrier system with sufficient design and construction parameter flexibility to accommodate project constraints, rather than a barrier system where the project design and construction must be adapted to facilitate its inclusion.
The system is fully CE marked with a Declared Performance of H2 / W1 / VI2 / ASI B, without the need for a longitudinal steel strand. The system also benefits from a reduced upper foundation thickness and can also be surfaced mounted.
The system is manufactured insitu under Factory Production Controls at the point of need; this represents the most efficient lean manufacturing process, and unlike precast barrier systems avoids the need for shimming, grouting, repetitive mechanical lifting and double handling.
Concrete mix design is tailored to meet the environment and location in which the barrier is being constructed to ensure a right first time quality product.
Within a maximum of 3 days from installation - sooner given moderate ambient temperature, ECB will have gained sufficient strength to provide Declared Performance. There is no need to revisit the barrier to carry out other works, such as levelling and grouting; resulting in follow on trades being able to access these locations immediately or indeed the barrier to be exposed to traffic.
The cost of the new high-performance barrier profile has been found, by an independent research group, to be comparable with lower performance double sided N2 steel barrier systems.
The system can be used in a variable, wide, and wide variable profile arrangements and offers a simple solution for crossing and abutting structures.
The system has a unique universal transition / termination unit that facilitates transition to all other safety restraint systems as well as structures that have been suitably assed to withstand direct vehicle impact. Transition / termination is constructed using bespoke modular steel formwork that efficiently caters for existing surface preparation, structure profile and transition / termination locations.
A modified version of ECB is available to facilitate the incorporation of street lighting within a single line of concrete barrier located within the central reserve of major roads.
ECB wide can incorporate either a duct or a trough within, which cabling can be routed and maintained.
Anchors are post drilled and fixed to secure the steel light columns.
The system is fully CE marked with a Declared Performance of H2 / W3 / VI2 / ASI B, without the need for a longitudinal steel strand. The system also benefits from a reduced upper foundation thickness and can also be surfaced mounted.
The system is manufactured insitu under Factory Production Controls at the point of need; this represents the most efficient lean manufacturing process, and unlike precast barrier systems avoids the need for shimming, grouting, repetitive mechanical lifting and double handling.
Concrete mix design is tailored to meet the environment and location in which the barrier is being constructed to ensure a right first time quality product.
Within a maximum of 3 days from installation - sooner given moderate ambient temperature, ECB will have gained sufficient strength to provide Declared Performance. There is no need to revisit the barrier to carry out other works, such as levelling and grouting; resulting in follow on trades being able to access these locations immediately or indeed the barrier to be exposed to traffic.
The cost of the new high-performance barrier profile has been found, by an independent research group, to be comparable with lower performance double sided N2 steel barrier systems.
The system can be used in a variable, wide, and wide variable profile arrangements and offers a simple solution for crossing and abutting structures.
The system has a unique universal transition / termination unit that facilitates transition to all other safety restraint systems as well as structures that have been suitably assed to withstand direct vehicle impact. Transition / termination is constructed using bespoke modular steel formwork that efficiently caters for existing surface preparation, structure profile and transition / termination locations.
Pavement adjacent to safety restraint systems sited within a hardened central reserve is rarely, if ever, level; there is always a level difference across the base of the barrier system.
Standards allow for small increments of such level difference to be accommodated within the symmetrical, as tested profile, to achieve the systems Declared Performance. It is also possible to artificially re-profile surfacing falls across the central reserve so as to accommodate a fixed profile barrier system. However, the only credible solutions are either to provide two lines of barrier - one serving the pavement on the high side and one line serving the pavement on the low side; or to provide a variable profile barrier.
ECB is able to accommodate level differences of up to 300mm with a single barrier profile, avoiding the need for two lines of barrier or re-profiling of the central reserve pavement levels.
Variable profile ECB is constructed with an articulated slipform mould that automatically adjusts to suit adjacent pavement levels.
Variable profile ECB is available in both the standard width and wide profile system.
Extrudakerb are experts in the field of designing and constructing all Britpave barrier systems.
Extrudakerb provide a vast range of experience, a renowned team of professional staff and the very latest equipment required to provide compliant Britpave concrete barrier constructed by both slipform and fixed form processes.
A range of transitions and terminals are provided within the Extrudakerb / Britpave suite of drawings and are featured within the associated data sheets.
Transitions are available from concrete to steel step barrier providing solutions for expansion joints and emergency crossing points.
Transitions are available to some N2 containment steel systems.
Terminals are available and these allow CSB to adjoin structures and crash cushions.
All transitions and terminals are constructed using bespoke steel formwork designed and manufactured by our own fabrication division. Formwork gangs are employed directly in house and constitute a vital part of the complete service offered by us.
Careful programming and execution of the formwork elements within a project programme ensure the whole of the works are completed on time.
