Specification of Deformed Bars
Concrete steel screw threaded through the rollers on the surface (the pattern was different depending on the manufacturer) to obtain bonding (bonding) is better between reinforcement and concrete used in almost all applications compared to plain reinforcement with the same cross-sectional area. Screw shape in the form of fins increase the adhesive power to resist movement of the rod relative to the concrete.
While iron screw consists of size: 10mm thread, 13mm thread, 16mm thread, 19mm thread, 22mm thread
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