Rectangular centering sheets are temporary, flat steel plates used as part of a formwork system to support wet concrete until it hardens. They are placed within a framework to create a smooth, even surface for horizontal concrete elements like slabs and beams, and are designed to be durable, rust-free, and corrosion-resistant. After the concrete is strong enough, the centering sheets are removed. Key details Purpose: To provide temporary support for the weight of wet concrete in horizontal structures such as slabs, beams, and canopies, ensuring a finished, even surface once the concrete cures.Material: Typically made from mild steel or hot-rolled steel.Features: They are designed to be durable and rust-free, with many being corrosion-resistant. Some may be painted or have a special coating (e.g., red oxide, color galvanized).Dimensions: They are available in standard rectangular sizes, with a common example being (600times 900) mm.Thickness: The thickness can vary, with examples like (3) mm for mild steel plates or (8.5) mm for some hot-rolled sheets.Tensile Strength: A high tensile strength, such as (235) MPa, is often specified for durability.Application: They are used in conjunction with other formwork components like props and scaffolding to support the entire concrete structure until it can support its own weight.
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