06. repair and rehabilitation

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06. repair and rehabilitation

  1. 1. •••••••
  2. 2. 1.2.
  3. 3. 1.2.a.b.c.d.
  4. 4. 1.2.3.1.2.3.4.5.
  5. 5. 1.
  6. 6. 3.4.5.
  7. 7. FIBER REINFORCED POLYMER COMPOSITE• FIBER REINFORCED POLYMER (FRP) IS A COMPOSITE MATERIAL MADE BY COMBINING TWO ORMORE MATERIALS TO GIVE A NEW COMBINATION OF PROPERTIES.• IT IS COMPOSED OF FIBER AND MATRIX, WHICH ARE BONDED.• IN THIS CASE, THE REINFORCING FIBER PROVIDES FRP COMPOSITE WITH STRENGTH ANDSTIFFNESS, WHILE THE MATRIX GIVES RIGIDITY AND ENVIRONMENTAL PROTECTION.
  8. 8. FORMATION OF FIBER REINFORCED POLYMER COMPOSITE••
  9. 9. TO PERFORM DESIRABLE FUNCTIONS, THE FIBERS INFRP COMPOSITE MUST HAVE-1. HIGH MODULUS OF ELASTICITY FOR USE AS REINFORCEMENT;2. HIGH ULTIMATE STRENGTH;3. LOW VARIATION OF STRENGTH AMONG FIBERS;4. HIGH STABILITY OF THEIR STRENGTH DURING HANDLING; AND5. HIGH UNIFORMITY OF DIAMETER AND SURFACE DIMENSION AMONG FIBERS.
  10. 10. ••••
  11. 11. TYPES OF FRP MATERIALSMatrix materialPOLYMERMATRIX COMPOSITES(PMC)GLASSFIBER-REINFORCEDPOLYMERCOMPOSITES(GFRPS)CARBONFIBER-REINFORCEDPOLYMERCOMPOSITES(CFRPS)ARAMIDFIBER-REINFORCEDPOLYMERCOMPOSITES(AFRPS)METALMATRIX COMPOSITES(MMC)CERAMICMATRIX COMPOSITES(CMC)
  12. 12. 1) LOADING INCREASE2) DAMAGE TO STRUCTURAL PARTS
  13. 13. 3) SERVICEABILITY IMPROVEMENT4) CHANGE IN STRUCTURAL SYSTEM5) DESIGN OR CONSTRUCTION DEFECTS
  14. 14. •••••••••••
  15. 15. 1.2.3.4.5.

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