Shuttering boards, also known as formwork, are critical components in the realm of concrete construction. Their primary function is to provide a robust and secure mold where concrete can be poured and allowed to harden. While traditionally made of materials like plywood or steel, modern innovations like PAC® (Plastic Aluminum Composite) shuttering boards offer an eco-friendly and more durable substitute. This blog post will explore the indispensable role that these boards play in concrete construction.
Shuttering Boards: The Unsung Heroes of Construction
Despite being temporary structures, shuttering boards have a significant impact on the overall quality, safety, and efficiency of concrete constructions. They serve as the ‘skeleton’ that gives shape to our buildings, bridges, and other concrete structures. Modern composite boards are made from a mix of industrial-grade plastics, Aluminium Oxide, Fibre, and Cross Linked Polymers (XLP) Metal, which provides enhanced strength and stability.
Shape and Support
Shuttering boards are the molds that guide concrete into the desired shape. They are designed and assembled according to the specific dimensions and design of the structure. Once the concrete is poured into the shuttering, it takes on this shape as it cures and hardens. Without these boards, it would be incredibly challenging, if not impossible, to create complex concrete structures like retaining walls, columns, beams, and slabs.
Quality Control
Shuttering boards play a crucial role in maintaining the quality of concrete structures. They hold the wet concrete in place, preventing it from spreading or losing its shape during the curing process. The surface of the board directly impacts the final appearance of the concrete. Products like PAC® boards provide a smooth surface, which helps in achieving a better finish on the concrete. By ensuring the structural integrity and aesthetic quality of the final product, they are vital for quality control.
Safety Measures
In addition to shaping and supporting the concrete, shuttering boards also contribute to safety on the construction site. Wet concrete can be heavy and unstable, and a well-constructed shuttering must withstand its pressure to prevent accidents. PAC® boards demonstrate significant compressive strength (5222 PSI), tensile strength (11.89N/mm2), and screw withdrawal strength (2460 N), ensuring a high degree of structural stability and safety for the construction crew.
Durability and Reusability
While traditional plywood is an option, it has limitations, such as being susceptible to water damage and offering fewer reuses. Modern alternatives like PAC® boards are designed for superior durability and a longer service life.
- High Repetitions: These boards can be used for up to 100+ repetitions, a significant increase compared to plywood (up to 12) or steel and PVC (up to 50). This makes them a more cost-effective solution in the long run.
- Robust Properties: They are waterproof, UV resistant, and fire-resistant. Unlike other materials, they do not crack, deform, or degrade easily.
- Economic Viability: Their high number of uses makes them an economical option for frequent buyers. Some manufacturers also offer a buy-back or replacement option, further enhancing their economic viability.
Conclusion
Shuttering boards may not be the most glamorous part of a construction project, but their role is undeniably vital. They shape, support, and ensure the safety and quality of concrete constructions. The evolution from traditional plywood to advanced, eco-friendly, and recyclable composite materials like PAC® shuttering boards is making the construction process more efficient, cost-effective, and sustainable. Understanding their importance helps us appreciate the complexity and precision involved in building the concrete structures we often take for granted.