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CatStrong CFRP Rod Panels Developed at U. of KY

CatStrong CFRP Rod Panels Developed at U. of KY. CatStrong. Fiberglass mesh backing. 6 ” (152 mm). 6 ” (152 mm). CFRP rods. 12 ” (305 mm). 48 ” ( 1219 mm). CatStrong. CRP-195 vs. Steel. W S = 11.45 lb/ft ≈ 26 W C. W C = 0.43 lb/ft. t S = 0.28 in. A36 Steel. t C =0.156 in.

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CatStrong CFRP Rod Panels Developed at U. of KY

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  1. CatStrongCFRP Rod PanelsDeveloped at U. of KY

  2. CatStrong Fiberglass mesh backing 6” (152 mm) 6” (152 mm) CFRP rods 12” (305 mm) 48” (1219 mm)

  3. CatStrong

  4. CRP-195 vs. Steel WS= 11.45 lb/ft ≈ 26 WC WC = 0.43 lb/ft tS = 0.28 in A36 Steel tC=0.156 in CatStrong CRP-195 1.0 ft 1.0 ft Ultimate Load = 195 kip

  5. CRP-195 vs. CFRP Fabric WF = 0.125 lb/ft ≈ 0.3 WCRP WC = 0.43 lb/ft (without epoxy) (without epoxy) tF =0.16 in SikaWrap Hex 103C CFRP Fabric (4 plys) (with epoxy) tC =0.156 in CatStrong CRP-195 1 ft 1 ft Ultimate Load = 195 kip

  6. CRP-195 vs. CFRP Laminate WL= 0.35 lb/ft WC= 0.43 lb/ft (without epoxy for 2.6 laminates) (without epoxy) tL=0.047 in SikaCarboDur S1012 Ultimate Load = 75 kip/laminate tC=0.156 in CatStrong CRP-195 4 in 4 in 2.4 in 1 ft Ultimate Load = 195 kip

  7. CRP 195 Strength = 195,700 lbs/ft = 88 768 kg/ft = 291 233 kg/m Type 1 Truck W = 40,000 lbs = 18 144 kg Type 3 Truck W = 73,500 lbs = 33 339 kg Type 4 Truck W = 80,000 lbs = 36 287 kg

  8. CatStrong Field Applications

  9. Repair of the KY218 Bridge Over Blue Springs Creek, Hart County, KY First Application of CatSrong CRP80 (week of September 19, 2011) Step 1: Application of resin on concrete girder Step 2: Application of CRP80 on resin Girder strengthened with CRP80 Step 3: Application of resin coat on CRP80

  10. Caldwell Road over Blue Grass Parkway

  11. Caldwell Road over Blue Grass Parkway

  12. Retrofit of Impacted Girderon the Sunnyside-Gotts Road over I-65

  13. Impacted Girder

  14. Impacted Girder

  15. Day 1,2: Preparation of Damaged Zone

  16. Day 3: Bonding Agent on Steel and Concrete

  17. Day 3: Formwork for Repair Mortar

  18. Day 4: Patching of Defects

  19. Day 5: Crack Injection

  20. Day 6: Grinding of Crack Injection Ports

  21. Day 6: Sand Blasting of Retrofit Surface

  22. Day 6: CatStrong CRP 195 Application

  23. Day 6: CFRP Fabric Application

  24. Day 6 (Dawn of Day 7): Retrofitted Zone Retrofitted Girder Stronger Than Original Girder

  25. KY 81 Bridge, McLean County, KY

  26. Removal of Loose Concrete, Rust From Steel, etc. (8/9/12)

  27. Beam Brought Back to Original Shape (8/10/12)

  28. Application of CatStrong (9/17/12)

  29. Application of CFRP Fabric (9/18/12)

  30. Beam After Repair (9/18/12) (Repaired beam is stronger than the original beam when the bridge was first opened to traffic)

  31. Outline - Introduction - High Performance Material -Conclusions - Acknowledgment

  32. Conclusion - HP Materials are now viable alternative construction material - Structural repair is an area where HP Materials - Health Monitoring

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