BS 4482:2005 pdf download

10-19-2020 comment

BS 4482:2005 pdf  free download. Steel wire for the reinforcement of concrete products – Specification.
BS 4482:2005 specifies requirements for plain, indented and ribbed steel wire used for the reinforcement of concrete products.
The standard contains provisions for two grades, based on mechanical properties. Grade 500 is specified for plain, indented and ribbed wires. Grade 250 is specified as an option for plain wires only.
Bar or coil for the manufacture of structural welded fabric to BS 4483 is not covered by this standard BS 4449: 2005 covers bar or coil for this purpose.
Wire for the prestressing of concrete and wire used for ties, lifting and other general engineering or industrial purposes is not covered by this standard.
The nominal wire diameter (size) range specified in this standard is 2.5 mm to 12 mm.
6 Steelmaking and manufacturing processes The melting process and type of deoxidation of the steel shall be at the discretion of the steel producer.
The manufacturing process for the production of coils shall be at the discretion of the manufacturer. It shall be reported to the purchaser if requested.
Decoiling of coil material shall be done by a machine made for this purpose.
7.4 Bond strength and surface geometry
7.4.1 General
Ribbed and indented wires are characterized by their surface geometry, by means of which bond with the concrete is achieved.
Bond property requirements of ribbed and indented reinforcing wires shall be based on surface geometry or by means of the bond test provided in Annex A. Bond property requirements based on surface geometry are preferred. The assessment criteria for the bond tests shall be as given in the appropriate design documents. A suitable means of factory production control based on the control of surface geometry shall be derived from the bond test results.
7.4.2 Surface geometry of ribbed wires General
Ribbed wires are characterized by the dimensions, number and configuration of transverse and longitudinal ribs. Wires shall have two or more rows of transverse ribs uniformly distributed around the perimeter. Within each row the ribs shall be uniformly spaced. Longitudinal ribs can be present or not.
An example of a ribbed steel is given in Figure 1.

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