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Polystyrene void formers are an innovative solution in bridge deck construction design. Void formers made from Expanded Polystyrene (EPS), provide significant benefits in terms of weight reduction, cost efficiency, and structural integrity. Engineers are able to optimise and enhance the performance and cost-efficiency of concrete bridge structures using Foam Tech Iso-lite foam profiles that are cast in-situ, resulting in less concrete being required. The reduction in weight decreases the load on supporting structures and foundations leading to improved overall stability and reduced structural demands.

Benefits of Using Polystyrene Void Formers

Weight Reduction: One of the primary advantages of using polystyrene void formers is the reduction in the overall weight of the concrete structure. By creating voids, the weight of the concrete is significantly reduced. This reduction can decrease the load on supporting beams and foundations, leading to cost savings in structural supports and materials.

Cost Efficiency: Reducing the amount of concrete required for a project not only lowers material costs but also decreases labour costs associated with handling and placing the concrete. The use of void formers can lead to substantial savings in large-scale construction projects.

Improved Thermal Insulation: Polystyrene has excellent insulating properties. When void formers are used, they can contribute to improved thermal insulation within the structure.

Ease of Handling: Polystyrene void formers are lightweight and easy to handle, which simplifies the construction process. They are easy to cut and shape on-site, allowing for quick adjustments and installation.

Environmental Benefits: By using polystyrene void formers, construction projects can become more environmentally friendly. Reduced concrete usage lowers the carbon footprint associated with cement production, and the insulation properties of EPS can contribute to energy savings.

Applications of Polystyrene Void Formers

Building Foundations: In foundation construction, void formers are used to create space for utilities or to reduce the weight of the foundation. They can also help mitigate the effects of soil settlement and reduce the risk of cracking in the concrete.

Floor Slabs: For large floor slabs, such as those in commercial buildings or parking structures, void formers can reduce the amount of concrete needed while maintaining structural integrity. This is particularly beneficial in high-rise buildings where weight considerations are crucial.

Retaining Walls: In retaining wall construction, void formers can be used to create cavities that reduce the load on the wall and provide space for drainage. This can enhance the stability and longevity of the retaining wall.

Bridge Decks: In bridge construction, void formers help to reduce the weight of the bridge deck, which can improve the efficiency of the overall design. This weight reduction can lead to cost savings in materials and supports.

1. Product Specifications

Material Composition: Expanded Polystyrene (EPS)
Density: Typically, between 15-28 kg/m³
Compressive Strength: Approximately 70-175 kPa (depending on density)
Thermal Conductivity: 0.030-0.040 W/mK
Dimensions: Customised profiles, standard blocks, including sheets 1200 mm x 600 mm and thicknesses ranging from 50 mm to 300 mm.
Weight: Extremely lightweight.
Color: Typically white.
Water Resistance: Highly resistant to water absorption

Conclusion

Polystyrene void formers are a versatile and efficient solution for bridge deck construction, offering numerous benefits in terms of weight reduction, cost savings. By integrating Void formers into your bridge design, you can enhance structural performance while contributing to more sustainable construction practices.