Civils and Infrastructure

Modular Structures

Modular construction systems consist of high quality interlocking pultruded FRP panels which are bonded together to form a membrane structure in which walls, floors and roof provide complete structural integrity without additional framework. The Advanced Composite Construction System provides rapid, cost effective, high quality construction, even in locations where access is difficult. The key advantages from using FRPs in this application are:

  • Monocoque structure, no additional framework required
  • Lightweight modular components
  • Designed for easy erection
  • Thermally insulated and fire resistant

Transportation, installation and safety benefits prevail with the use of FRP modular components. Prefabrication is possible, minimising site assembly and installation time, lighter components are cheaper to transport and safer to operate with on site.

GRP modular shower and bath pods are widely used in hotel, healthcare and military sectors. Manufactured offsite, they reduce installation time and provide a low maintenance solution.

Masts and Towers

FRP pole sections have been around for many years. However, developments in manufacturing processes and UV stabilised resins have now made them a cost-effective solution for electricity distribution, utilities and domestic use. FRP utility poles offer substantial engineering advantages over their conventional timber and steel counterparts. Poles can be designed to exhibit high strength, stiffness and fatigue resistance in critical areas with preferential fibre orientation.

The dielectric properties of FRPs provide significant benefits to electricity supply companies as electric lines can be closer without the risk of electrical arcing, more circuits can be placed on existing corridors, bringing financial and environmental benefits. FRP poles aid conformance to environmental regulations and bring about a reduction in the use of toxic pesticides and wood preservatives utilised with equivalent timber products.

Financial benefits arise from reduced through life costs (they have a design life up to 80 years compared to 10 – 20 for wood and steel) low maintenance requirements and lower transportation and installation costs. Small helicopters can be used to locate the poles, there is no need to construct roads especially for transporting the poles to site as is the case with steel and timber because of their weight.


FRP piles can be used for marine applications such as quays, dolphins, jetties etc., as an alternative to driven timber, steel and reinforced concrete.

FRP can be used to overcome common problems with corrosion of steel and marine borer attack in timber piles. There are also environmental concerns over the use of creosote and Copper Chrome Arsenic treated timber in water. FRP piles have been used successfully in a number of large waterfront developments in North America.

Case Studies

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