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CARES and the reinforced concrete industry

CARES and the reinforced concrete industry. Providing confidence in reinforcing steels. Production, processing and supply. Steelmaking process routes. Steelmaking process routes. Steelmaking process routes. Schematic of Quench and Self Temper process. Reinforcing steel process routes.

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CARES and the reinforced concrete industry

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  1. CARES and the reinforced concrete industry Providing confidence in reinforcing steels

  2. Production, processing and supply.

  3. Steelmaking process routes

  4. Steelmaking process routes

  5. Steelmaking process routes

  6. Schematic of Quench and Self Temper process

  7. Reinforcing steel process routes

  8. Steel processing routes Scrap ORE EAF BOS Microalloying Quenching and Self Tempering Cold Rolling Cold Stretching Bar Coil “sophisticated product”

  9. Standard Grade Re (MPa) Rm/Re A5 (%) Agt (%) BS 4449:1997 460A 460 1.05 12 2.5 BS 4449:1997 460B 460 1.08 14 5.0 BS 4449:2005 B500A 500 1.05a N/a 2.5b BS 4449:2005 B500B 500 1.08 N/a 5.0 BS 4449:2005 B500C 500 >1.15 1.30 N/a 7.5 a 1.02 for sizes < 8mm b 1.0% for sizes < 8mm Rm = Ultimate Tensile Strength Table 5. Comparison of properties.

  10. From specification to supply.

  11. How are CARES Approvedcompany’s specified ?

  12. Construction specifications • BS8110 (“Normal”) – BS4449 Grades A, B or C • BS5400 (Bridges) – BS4449 Grades B or C • BNFL (Nuclear) – BS4449 Grade C

  13. Rebar Supply Chain • Construction specification. • Design • Detailing • Reinforcement Scheduling (BS8666) • Reinforcement fabrication • Supply to Site

  14. The Importance of the CARES Approved Fabricator

  15. CARES Approved Fabricator • Vital part of the Supply Chain • Usual processes • Cutting and bending. • Welding (prefabrications) • Mechanical splicing (using couplers) • Stocking and distribution

  16. Cutting and Bending. Key responsibilities of Fabricator: • Material is correct to order • Cutting and bending is to the drawing • Material is not damaged during bending • Material retains properties • Cast traceability is maintained

  17. Welding - Prefabrications. Key responsibilities of Fabricator: • Steel is correct to order • Use of approved welding procedures • Use of approved and certificated welders • Use of approved welding equipment and consumables. • Welds are tested as required. • Traceability is maintained

  18. Application of mechanical couplers. Key responsibilities of Fabricator: • Use of approved couplers. • Use of correct machinery and equipment • Use of calibrated equipment • Use of approved operatives. • Testing of coupled joints as required. • Maintenance of Traceability.

  19. CARES and the reinforced concrete industry Providing confidence in reinforcing steels

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