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PART 9 COMPOSITES

PART 9 COMPOSITES. 9.1 Introduction 9.2 Reinforcing bars in concrete 9.3 Fibre reinforcement in concrete 9.4 Steel/concrete composite bridge decks 9.5 Fibre reinforced plastics 9.6 Ply/foam sandwich construction 9.7 Wood/epoxy composites 9.8 Wood/glass/epoxy composites.

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PART 9 COMPOSITES

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  1. PART 9 COMPOSITES • 9.1 Introduction • 9.2 Reinforcing bars in concrete • 9.3 Fibre reinforcement in concrete • 9.4 Steel/concrete composite bridge decks • 9.5 Fibre reinforced plastics • 9.6 Ply/foam sandwich construction • 9.7 Wood/epoxy composites • 9.8 Wood/glass/epoxy composites

  2. Steel fibres for concrete

  3. Steel Fibre reinforcement

  4. Stiffness of matrix Stiffness of composite Load Stiffness of fibres Strain Failure strain for plain concrete Stress-strain for fibre composite

  5. PART 9 COMPOSITES • 9.1 Introduction • 9.2 Reinforcing bars in concrete • 9.3 Fibre reinforcement in concrete • 9.4 Steel/concrete composite bridge decks • 9.5 Fibre reinforced plastics • 9.6 Ply/foam sandwich construction • 9.7 Wood/epoxy composites • 9.8 Wood/glass/epoxy composites

  6. Reinforcement Shear Studs (steel) Steel UB Reinforcement Steel plate bonded with epoxy (as a strengthening system) Composite concrete slabs

  7. Composite bridge deck

  8. PART 9 COMPOSITES • 9.1 Introduction • 9.2 Reinforcing bars in concrete • 9.3 Fibre reinforcement in concrete • 9.4 Steel/concrete composite bridge decks • 9.5 Fibre reinforced plastics • 9.6 Ply/foam sandwich construction • 9.7 Wood/epoxy composites • 9.8 Wood/glass/epoxy composites

  9. Fibre Orientations

  10. Composite Fibre Reinforced Polymer Beam

  11. GRPDome

  12. PART 9 COMPOSITES • 9.1 Introduction • 9.2 Reinforcing bars in concrete • 9.3 Fibre reinforcement in concrete • 9.4 Steel/concrete composite bridge decks • 9.5 Fibre reinforced plastics • 9.6 Ply/foam sandwich construction • 9.7 Wood/epoxy composites • 9.8 Wood/glass/epoxy composites

  13. 12mm plywood 25mm polyurethane foam 12mm plywood Composite plywood panel

  14. SP Systems

  15. Timber/Steel composite floor beams

  16. PART 9 COMPOSITES • 9.1 Introduction • 9.2 Reinforcing bars in concrete • 9.3 Fibre reinforcement in concrete • 9.4 Steel/concrete composite bridge decks • 9.5 Fibre reinforced plastics • 9.6 Ply/foam sandwich construction • 9.7 Wood/epoxy composites • 9.8 Wood/glass/epoxy composites

  17. SP Systems

  18. Advanced wood composites

  19. PART 9 COMPOSITES • 9.1 Introduction • 9.2 Reinforcing bars in concrete • 9.3 Fibre reinforcement in concrete • 9.4 Steel/concrete composite bridge decks • 9.5 Fibre reinforced plastics • 9.6 Ply/foam sandwich construction • 9.7 Wood/epoxy composites • 9.8 Wood/glass/epoxy composites

  20. SP Systems

  21. SP Systems

  22. SP Systems Density Tonnes/m3

  23. Jointing with 0/90° Fabric

  24. Jointing with +/-45° Fabric

  25. Mechanical Properties requirements of the Resin Matrix Matched mechanical properties Highly adhesive to substrate Good toughness properties Resistance to environmental degradation

  26. Stress / Strain for an Ideal Resin

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