University of Calgary

Raafat El-Hacha

Journals Papers

  1. El-Hacha, R., and Gaafar, M.,  "Strengthening Two-Way RC Floor Slab Using Externally Bonded Steel Reinforced Polymer Sheets - First Canadian Field Application", Canadian Journal of Civil Engineering, (under review).
  2. El-Hacha, R., Callery, K., Green, M.F., and Archibald, J.F., "Durability of FRP Wrapped and Hybrid Polyurethane/Polyurea Coated Reinforced Concrete Columns under Harsh Environmental Conditions", Canadian Journal of Civil Engineering, (under review).
  3. El-Hacha, R., Green, M.F., and Wight, G.R., "Effect of Severe Environmental Exposures on CFRP Wrapped Concrete Columns", ASCE Journal of Composites for Construction, (under review).
  4. El-Hacha, R., Mirmiran, A., Cook, A., Rizkalla, S.H., "Effectiveness of Surface-Applied Corrosion Inhibitors for Concrete Bridges", ACI Material Journal (under review).
  5. El-Hacha, R., Bisby, L., Williams, B., Tung, D., and Ford, J., "First ISIS Canada Pedestrian Bridge – Student Design Perspective", Canadian Journal of Civil Engineering, Volume 34, Number 3, March 2007, pp. 463-471.
  6. El-Hacha, R., Elbadry, M., "Strengthening Concrete Beams with Externally Prestressed Carbon Fiber", PTI Journal, December 2006, pp. 53-70.
  7. El-Hacha, R., El-Agroudy, H., and Rizkalla, S.H., "Bond Characteristics of High-Strength Steel Reinforcement", ACI Structural Journal, Vol. No. Nov.-Dec. 2006, pp. 774-782.
  8. El-Hacha, R, and Rizkalla, S.H., "Near Surface Mounted FRP Reinforcements for Flexural Strengthening of Concrete Structures", ACI Structural Journal, Vol. 101, No. 5, Sept.-Oct. 2004, pp.717-726.
  9. El-Hacha, R, Green, M.F.., and Wight, R.G., "Flexural Behaviour of Concrete Beams Strengthened with Prestressed Carbon Fibre Reinforced Polymer Sheets Subjected to Sustained Loading and Low Temperature", Canadian Journal of Civil Engineering, Can. J. Civ. Eng. Vol. 31, 2004, pp. 239-252.
  10. El-Hacha, R, Wight, R.G., and Green, M.F.., "Prestressed CFRP Sheets for Strengthening Concrete Beams at Room and Low Temperatures," Journal of Composites for Construction, ASCE, January-February 2004, Volume 8, Issue 1, pp. 3-13.
  11. Wight, R.G., El-Hacha, R, and Erki, M., "Prestressed and Non-Prestressed CFRP Sheet Strengthening: Damaged Continuous Reinforced Concrete Beams." International Journal of Materials and Product Technology, Vol. 19, Issue 1/2, 2003, pp. 96-107.
  12. El-Hacha, R, Green, M.F., and Wight, R.G., "Innovative System for Prestressing FRP Sheets," ACI Structural Journal, Vol. 100, No.3, May-June 2003, pp. 305-313.
  13. El-Hacha, R, Wight, R.G., and Green, M.F., "Prestressed Fibre-Reinforced Polymer Laminates for Strengthening Structures." Progress in Structural Engineering and Materials Journal, 2001:3, pp. 111-121.

Refereed Conference Papers:

  1. Heffernan, PJ., Arndt, A., Carriere, M., Berger, J.-O., Wight, R.G., and El-Hacha, R., "Blast Loads on Reinforced Concrete Strengthened with FRP Sheets" Towards Safe and Durable Infrastructure Conference and Workshops of the ISIS Canada Network Association, Toronto, Ontario, Canada, May 7-8, 2009, 2p. (Extended Abstract)
  2. Elmahdy, A., El-Hacha, R., and Shrive, N.G., "Static and Fatigue Behaviour of Hybrid High Performance Concrete Beams", Proceedings of the 13th International Colloquium on Structural and Geotechnical Engineering, Cairo, Egypt, December 27-29, 2009, 8p. (Paper submitted).
  3. Aly, M.Y.Emam, and El-Hacha, R., "Strength Evaluation of Steel-Concrete Composite Girdrs Strengthened with Prestressed FRP Laminates", Proceedings of the 2nd Asia-Pacific Conference on FRP in Structures (APFIS 2009), Seoul, Korea, December 9-11, 2009, 6p. (Paper submitted).
  4. El-Hacha, R., Green, M.F., and Wight, R.G., "Prestressed CFRP Sheets Strengthening Technique: Development from Research Laboratory to Field Application", Proceedings of the 4th International Conference on Construction Materials - ConMat'09, Nagoya, Japan, August 24-26, 2009, 10p. (Paper accepted).
  5. Abdelazeem, H., El-Hacha, R., and Cariaga, I., "Structural Evaluation of Ultra-High Performance Concrete Crossarms for High Voltage Transmission Lines", Proceedings of the 4th International Conference on Construction Materials - ConMat'09, Nagoya, Japan, August 24-26, 2009, 10p. (Paper accepted).
  6. El-Hacha, R., and Wagner, M., "Shear Strengthening of Reinforced Concrete Beams with Near-Surface Mounted CFRP Strips", The 9th International Symposium on Fiber Reinforced Polymer Reinforcement for Concrete Structures (FRPRCS-9), Sydney, Australia, July 13-15, 2009,  (CD-Rom, 10p.).
  7. Gaafar, M., and El-Hacha, R., "Prestressed Near-Surface Mounted CFRP Rebars for Flexural Strengthening of Reinforced Concrete Beams", The 9th International Symposium on Fiber Reinforced Polymer Reinforcement for Concrete Structures (FRPRCS-9), Sydney, Australia, July 13-15, 2009, (CD-Rom, 10p.).
  8. El-Hacha, R., "Flexural Strengthening of 48-year old Pedestrian Reinforced Concrete Bridge Girders using Various Near-Surface Mounted FRP Systems", The 9th International Symposium on Fiber Reinforced Polymer Reinforcement for Concrete Structures (FRPRCS-9), Sydney, Australia, July 13-15, 2009, (CD-Rom, 10p.).
  9. El-Hacha, R., and Gaafar, M.A., "Flexural Strengthening of RC Beams using Prestressed NSM CFRP", Towards Safe and Durable Infrastructure Conference and Workshops of the ISIS Canada Network Association, Toronto, Ontario, May 7-8, 2009, 2p. (Extended Abstract).
  10.  Elmahdy, A., El-Hacha, R., and Shrive, N.G., “Flexural and Shear Behaviour of Hybrid FRP-Concrete Composite Beams”, Proceedings of the 2nd Canadian Conference on Effective Design of Structures, McMaster University, Hamilton, Ontario, Canada, May 20 – 23, 2008, (CD-Rom, 10p.)
  11. Elmahdy, A., El-Hacha, R., and Shrive, N.G., "Flexural Behavior of Hybrid Composite Girders for Bridge Construction", Proceedings of the ACI Special Publication on "FRP Stay-in-Place Forms for Concrete Structures: Research Activities, Case Studies, and Field Applications", sponsored by ACI Committee 440 during the ACI Spring 2008 Convention in Los Angeles, CA, USA, April 3, 2008 (CD-Rom, 19p) (In Press).
  12. El-Hacha, R., and Gaafar, M.A., "Field Application on Strengthening Two-Way Reinforced Concrete Floor Slab using Eternally Bonded SRP Sheets", Proceedings of the 5th International Conference on Advanced Composite Materials in Bridges and Structures (ACMBS-V), Winnipeg, Manitoba, Canada, September 22 – 24, 2008, (CD-Rom, 12p).
  13. Gaafar, M.A. and El-Hacha, R., "Innovative System to Strengthen Reinforced Concrete Beams with Prestressed NSM FRP Technique", Proceedings of the 5th International Conference on Advanced Composite Materials in Bridges and Structures (ACMBS-V), Winnipeg, Manitoba, Canada, September 22 – 24, 2008, (CD-Rom, 9p).
  14. El-Hacha, R., and Ali, M., "Flexural Strengthening of Steel-Concrete Composite Girders using Prestressed FRP", Proceedings of the 5th International Conference on Advanced Composite Materials in Bridges and Structures (ACMBS-V), Winnipeg, Manitoba, Canada, September 22 – 24, 2008, (CD-Rom, 11p).
  15. Derias, M., El-Hacha R., and Rizkalla, S., "Durability of various NSM FRP Strengthening Systems for RC Flexural Members", Proceedings of the 5th International Conference on Advanced Composite Materials in Bridges and Structures (ACMBS-V), Winnipeg, Manitoba, Canada, September 22 – 24, 2008, (CD-Rom, p).
  16. Elmahdy , A., Shrive, N., and El-Hacha, R., "Finite Element Analysis of Hybrid FRP-Concrete Composites Girders", Proceedings of the 5th International Conference on Advanced Composite Materials in Bridges and Structures (ACMBS-V), Winnipeg, Manitoba, Canada, September 22 – 24, 2008, (CD-Rom, 10 p).
  17. Gaafar, M.A. and El-Hacha, R., "Strengthening Reinforced Concrete Beams with Prestressed Near-Surface Mounted FRP Strips", Proceedings of the 4th International Conference on FRP Composites in Civil Engineering (CICE 2008) Zurich, Switzerland, July 22 – 24, 2008, (CD-Rom, 6p).
  18. Ragab, N., and El-Hacha, R., "Finite Element Modelling of Steel-Concrete Composite Girders Strengthened using Various Composite Materials", Proceedings of the 4th International Conference on FRP Composites in Civil Engineering (CICE 2008) Zurich, Switzerland, July 22 – 24, 2008, (CD-Rom, 6p).
  19. Ali, M., and R. El-Hacha, R., "Prestressing System for FRP Strengthening Steel-Concrete Composite Girders", Proceedings of the 4th International Conference on FRP Composites in Civil Engineering (CICE 2008) Zurich, Switzerland, July 22 – 24, 2008, (CD-Rom, 6p).
  20. Ragab, N., and El-Hacha, R., "Structural Performance using Diagnostic Load Testing Protocol of Steel-Concrete Composite Girders Strengthened with Composite Materials", Proceedings of the 4th International Conference on FRP Composites in Civil Engineering (CICE 2008) Zurich, Switzerland, July 22 – 24, 2008, (CD-Rom, 6p).
  21. A. Elmahdy, A., El-Hacha, R., and Shrive, N., "Flexural Behaviour of Hybrid Composite Girders in Bridge Construction", Proceedings of the 4th International Conference on FRP Composites in Civil Engineering (CICE 2008) Zurich, Switzerland, July 22 – 24, 2008, (CD-Rom, 6p).
  22. Parsekian, G.A., El-Hacha, R., and Shrive, N.G., "Strengthening and Retrofitting Unreinforced Masonry Walls with Various FRPs Systems", Proceedings of the First Asia-Pacific Conference on FRP in Structures (APFIS 2007), Hong Kong, China, December 12-14, 2007, (CD-Rom, 8p).
  23. Elmahdy, A., El-Hacha, R., and Shrive, N.G., " Bonding of CFRP and SRP to Ultra-High Performance Concrete", Proceedings of the First Asia-Pacific Conference on FRP in Structures (APFIS 2007), Hong Kong, China, December 12-14, 2007, (CD-Rom, 8p).
  24. Derias, M., and El-Hacha, R., "Flexural and Shear Strengthening of Masonry Walls with FRP Composite Materials: State-of-Art", Proceedings of the First Asia-Pacific Conference on FRP in Structures (APFIS 2007), Hong Kong, China, December 12-14, 2007, (CD-Rom, 8p).
  25. Ragab, N., El-Hacha, R., and Aly, M., "Strengthening Steel-Concrete Composite Girders using FRPs: State-of-the Art", Proceedings of the First Asia-Pacific Conference on FRP in Structures (APFIS 2007), Hong Kong, China, December 12-14, 2007, (CD-Rom, 8p).
  26. Elmahdy, A., El-Hacha, R., and Shrive, N.G., "Bonding Behaviour between CFRP Plates, SRP Sheets, and Concrete", Proceedings of the 12th International Colloquium on Structural and Geotechnical Engineering, December 10 – 12, 2007, Cairo, Egypt, (CD-Rom, 8p).
  27. Ragab, N., and El-Hacha, R., "FRP Shear Strengthening of Steel-Concrete Composite Girders" Proceedings of the 8th International Symposium on Fibre-Reinforced Polymer Reinforcement for Concrete Structures (FRPRCS-8), Patras, Greece, July 16–18, 2007, (CD-Rom, 10p).
  28. Gaafar, M., and El-Hacha, R., "Prestressing Concrete Beams using NSM FRP Technique", Proceedings of the 8th International Symposium on Fibre-Reinforced Polymer Reinforcement for Concrete Structures (FRPRCS-8), Patras, Greece, July 16–18, 2007, (CD-Rom, 8p).
  29. Aly, M., El-Hacha, R., "Strengthening Steel-Concrete Composite Girders using Prestressed FRP", Proceedings of the 8th International Symposium on Fibre-Reinforced Polymer Reinforcement for Concrete Structures (FRPRCS-8), Patras, Greece, July 16–18, 2007, (CD-Rom, 8p).
  30. Abou Zeid, B., and El-Hacha, R., "Blast Mitigation of a Reinforced Concrete Frame using Externally Bonded Fiber Reinforced Polymers", Proceedings of the 8th International Symposium on Fibre-Reinforced Polymer Reinforcement for Concrete Structures (FRPRCS-8), Patras, Greece, July 16–18, 2007, (CD-Rom, 8p).
  31. Derias M., and El-Hacha, R., "Bond Behavior of FRP in Structures: State-of-the-Art Review", Proceedings of the 8th International Symposium on Fibre-Reinforced Polymer Reinforcement for Concrete Structures (FRPRCS-8), Patras, Greece, July 16–18, 2007, CD-Rom, 14p).
  32. Mertol, H.C., Rizkalla, S., Scott, P., Lees, J.M., and El-Hacha, R., "Durability and Fatigue Behavior of Concrete Beams Prestressed with CFRP", Proceedings of the 3rd International Conference on Durability and Field Applications of Fiber-Reinforced Polymers (FRP) Composites for Construction (CDCC07), Quebec, Quebec, Canada, May 22–24, 2007, pp. 17-24.
  33. El-Hacha, R., "Flexural Strengthening of 48 year Old Pedestrian Bridge Reinforced Concrete Girders", Proceedings of the 3rd International Conference on FRP Composites in Civil Engineering (CICE 2006) Miami, Florida, USA. December 13-15 2006, pp. 635-638.
  34. El-Hacha, R., and Ragab, N., "Flexural Strengthening of Composite Steel-Concrete Girders using Advanced Composite Materials", Proceedings of the 3rd International Conference on FRP Composites in Civil Engineering (CICE 2006), Miami, Florida, USA. December 13–15 2006, pp. 741-744
  35. Mertol, H.C., Rizkalla, S., Scott, S., Lees, J.M., and El-Hacha, R., "Durability of Concrete Beams Prestressed with CFRP", Proceedings of the ACI Special Publication SP-245 on "Case Histories and Use of FRP for Prestressing Applications", sponsored by ACI Committee 440 during the ACI Convention in Denver, Colorado, USA November 8, 2006 (CD-Rom, 20p)
  36. Ragab, N., and El-Hacha, R., "Effectiveness of Various Repair Systems for Flexural Strengthening of Steel-Concrete Composite Girders", Proceedings of the 7th International Conference on Short and Medium Span Bridges (SMSB-VII), August 23-25, 2006, Montreal, Quebec, Canada, (CD-Rom, 11p).
  37. El-Hacha, R., and Bullock, B., "Progressive Collapse for Reinforced Concrete Buildings", Proceedings of 1st Specialty Conference on Disaster Mitigation (SCDM-1), CSCE Annual Conference, Calgary, Alberta, Canada, May 23-26, 2006, (CD Rom,13p, Paper DM-018).
  38. El-Hacha, R., and Yuen, C., "FRP - A Potential Blast Retrofitting Material", Proceedings of 1st Specialty Conference on Disaster Mitigation (SCDM-1), CSCE Annual Conference, Calgary, Alberta, Canada, May 23-26, 2006, (CD Rom, 13p, Paper DM-028).
  39. Ragab, N., and El-Hacha, R., "Flexural Strengthening of Steel-Concrete Composite Girders", Proceedings of 1st International Structural Specialty Conference (ISSC-1), CSCE Annual Conference, Calgary, Alberta, Canada, May 23-26, 2006, (CD Rom, 10p, Paper ST-096).
  40. Kim, Y.J., Fam, A., Kong, A., and El-Hacha, R., "Flexural Strengthening of RC Beams Using Steel Reinforced Polymer (SRP) Composites" ", Proceedings. of the 7th International Symposium on Fibre-Reinforced Polymer Reinforcement for Concrete Structures (FRPRCS-7), Kansas City, USA, November 7-10, 2005, pp. 1647-1663, (SP-230-93).
  41. El-Hacha, R., Rizkalla, S.H., and Kotynia, R., "Modelling of Reinforced Concrete Flexural Members Strengthened with Near-Surface Mounted FRP Reinforcement", Proceedings of the 7th International Symposium on Fibre-Reinforced Polymer Reinforcement for Concrete Structures (FRPRCS-7), Kansas City, USA, November 7-10, 2005, pp. 1681-1700, (SP-230-95).
  42. El-Hacha, R., Campbell, T.I., and Dolan, C.W., "Overview of ACI 440.4R-04 Document on Prestressing Concrete Structures with FRP Tendons", Proceedings of the Ned Burns Symposium on Historic Innovations in Prestressed Concrete, held in conjunction with the ACI Convention Kansas City, USA. November 7-10, 2005. pp. 219-236, (SP-231-13).
  43. Filho, J.N.S., Melo, G.S.S., El-Hacha, R., Rizkalla, S., and Carneiro, R., "Finite Element Modeling (FEM) of RC Beams Strengthened in Flexure with FRP", Proceedings of the 47th International Concrete Brazilian Congress (IBRACON), San Paulo, Brazil, September 2-7, 2005, 10p. (submitted in Portuguese)
  44. Filho, J.N.S., Melo, G.S.S., El-Hacha, R., and Rizkalla, S., "Fatigue Behaviour of RC Beams Strengthened in Flexure with Externally Bonded and Near Surface Mounted FRP Reinforcements", Proceedings of the 47th International Concrete Brazilian Congress (IBRACON), San Paulo, Brazil, September 2-5, 2005, 10p. (submitted in Portuguese)
  45. El-Hacha, R., Green, M.F., and Wight, R.G., "Prestressed CFRP Sheets Strengthening Technique: Development from Research Laboratory to Field Application", Proceedings of the 3rd International Conference on Construction Materials: Performance, Innovations and Structural Implications (ConMat'05), Vancouver, Canada, August 22-24, 2005. (CD Rom -13p).
  46. El-Hacha, R., Bisby, L., Williams, B., Tung, D., and Ford, J., "First ISIS Canada Pedestrian Bridge", Proceedings of the 3rd International Conference on Construction Materials: Performance, Innovations and Structural Implications (ConMat'05), Vancouver, BC, Canada, August 22-24, 2005. (CD Rom -10p)
  47. El-Hacha, R., Callery, K., and Green, M.F., "Environmental Effects on the Behaviour of FRP Wrapped and Hybrid Polyurethane/Polyurea Coated Concrete Cylinders: Laboratory Evaluation", International Conference on Civil Engineering Infrastructure Systems (CEIS 2005), Beirut, Lebanon, June 12-14, 2005, (CD-Rom, 12p)
  48. El-Hacha, R., Yotakhong, P., and Rizkalla, S.H., "High Performance Steel Reinforcement For Concrete Structures and Bridges", Proceedings of the International Conference on Civil Engineering Infrastructure Systems (CEIS 2005), Beirut, Lebanon, June 12-14, 2005, (CD-Rom, 12p)
  49. El-Hacha, R., Callery, K., and Green, M.F., "Assessment of FRP Wrapped and Hybrid Polyurethane/Polyurea Coated Reinforced Concrete Columns Under Field Exposure Conditions", the Proceedings of the 4th Middle East Symposium on Structural Composites for Infrastructure Applications (MESC-4), Alexandria, Egypt, May 20-23, 2005, (CD-Rom, 12p).
  50. El-Hacha, R. "Prestressing Concrete Structures with FRP Tendons", Proceedings of the ASCE 2005 Structures Congress, New York, USA, April 20-24 2005, (CD-Rom, 8p)
  51. El-Hacha, R., Filho, J.N.S., Rizkalla, S.H., and Melo, G.S. "Effectiveness of Near Surface Mounted FRP Reinforcements for Flexural Strengthening of RC Concrete Beams", Proceedings of the 4th International Conference. on Advanced Composite Materials in Bridges and Structures (ACMBS-IV), July 20-13, 2004, Calgary, Canada, (CD-Rom, 8p).
  52. El-Hacha, R., Filho, J.N.S., Rizkalla, S.H., and Melo, G.S., "Effectiveness of Near Surface Mounted FRP Reinforcements for Flexural Strengthening of RC Concrete Beams", Proceedings of the 4th International Conference on Advanced Composite Materials in Bridges and Structures (ACMBS-IV), July 20-13, 2004, Calgary, Canada, (CD-Rom, 8p).
  53. El-Hacha, R., ElAgroody, H., and Rizkalla, S.H., "Proposed Modification to the ACI 318-02 Code Equation on Bond Strength for MMFX Steel", Proceedings of the 32nd Annual Conference, Canadian Society for Civil Engineering (CSCE), June 2-5, 2004, Saskatoon, Saskatchewan, Canada, paper # ST 263, (CD Rom, 10p).
  54. El-Hacha, R., Yotakhong, P., and Rizkalla, S.H., "MMFX Microcomposite STEEL REBARS For concrete reinforcement", Proceedings of the 32nd Annual Conference, Canadian Society for Civil Engineering (CSCE), June 2-5, 2004, Saskatoon, Saskatchewan, Canada, paper # ST 264, (CD Rom, 10p).
  55. El-Hacha, R, Wight, R.G., Heffernan, P.J., and Erki, M., "Prestressed CFRP sheets for Strengthening Reinforced Concrete Structures in Fatigue", Proceedings of the 6th International Symposium on Fibre-Reinforced Polymer (FRP) Reinforcement for Concrete Structures (FRPRCS-6), Singapore, July 8-10, 2003, Volume 1, pp. 895-904.
  56. El-Hacha, R, Wight, R.G., Green, M.F., and Erki, M., (2002), "Prestressed CFRP Sheets for Strengthening Concrete Bridges". Proceedings of the 6th International Conference on Short and Medium Span Bridges (SMSB-VI), July 31-August 2, 2002, Vancouver, BC, Canada, pp. 329-336.
  57. Wight, R.G., Bouffard, P., Erki, M., and El-Hacha, R, (2002), "Repair of Battle Damaged Over-Bridged Structures". Proceedings of the 7th International Conference on Structures Under Shock and Impact, May 27-29, 2002, Montréal, Québec, Canada, pp. 509-518.
  58. El-Hacha, R, Green, M.F., and Wight, R.G., (2002), "Effect of Severe Environmental and Loading Conditions on Concrete Beams Strengthened with Prestressed CFRP Sheets." Proceedings of the 2nd International Conference on Durability of Fibre Reinforced Polymer (FRP) Composites for Construction (CDCC 02), May 29-31, 2002, Montréal, Québec, Canada, pp.127-140.
  59. Rizkalla, S., El-Hacha, R, and Faza, S., (2002), "High Performance Steel Reinforcing Bars". Invited paper for presentation in the Research in Progress Session at the ACI 2002 Spring Convention in Detroit, Michigan, US, April 22, 2002.
  60. Wight, R.G., El-Hacha, R, and Erki, M., (2001), "CFRP Sheets Strengthening Damaged Continuous Reinforced Concrete Beams." Proceedings of the International Conference on FRP Composite in Civil Engineering (CICE'01), December 12-15, 2001, Hong Kong, China, pp. 433-440.
  61. El-Hacha, R, Wight, R.G., and Green, M.F., (2001), "Prestressed CFRP Sheets for Strengthening Concrete Beams: Experimental and Analytical Investigation." Proceedings of the 5th International Conference on Fiber Reinforced Polymer for Reinforced Concrete Structures (FRPRCS-5), July 16-18, 2001, Cambridge, England, pp. 261-270.
  62. El-Hacha, R, and El-Badry, M., (2001), "Strengthening of Concrete Members Using Externally Prestressed Composite Cables." Proceedings of the 5th International Conference on Fiber Reinforced Polymer for Reinforced Concrete Structures (FRPRCS-5), July 16-18, 2001, Cambridge, England, pp. 699-708.
  63. El-Hacha, R, Green, M.F., and Wight, R.G., (2001), "Concrete Beams Post-Strengthened with Prestressed CFRP Sheets." Structural Faults + Repair 01. Proceedings of the 9th International Conference and Exhibition on Extending the Life of Bridges, Civil + Building Structures, July 4-6, 2001, London, England, (CD-Rom, 15p).
  64. El-Hacha, R, Green, M.F., and Wight, R.G., (2001), "Prestressing System for FRP Sheets: Long-Term and Low Temperature Effects." Structural Faults + Repair 01. Proceedings of the 9th International Conference and Exhibition on Extending the Life of Bridges, Civil + Building Structures, July 4-6, 2001, London, England, (CD-Rom, 17p).
  65. El-Hacha, R, Wight, R.G., and Green, M.F., (2001), "Long Term Behaviour of Concrete Beams Strengthened with Prestressed CFRP Sheets at Room an Low Temperatures." Proceedings of the 3rd International Conference on Concrete Under Severe Conditions Environment and Loading (CONSEC'01), June 18-20, 2001, Vancouver, Canada, pp. 1817-1826.
  66. El-Hacha, R, Wight, R.G., and Green, M.F., (2000), "Retrofitting of Severely Damaged Concrete Beams Using Prestressed CFRP Sheets." Proceedings of the 3rd International Conference on Advanced Composite Materials in Bridges and Structures (ACMBS-III), August 15-18, 2000, Ottawa, Ontario, Canada, pp. 529-536.
  67. El-Hacha, R, Wight, R.G., and Green, M.F., (2000), "Concrete Beams Strengthened with Prestressed CFRP Sheets at Low Temperature." Proceedings of the 17th Annual International Bridge Conference, June 12-14, 2000, Pittsburgh, Pennsylvania, USA, pp. 21-31.
  68. El-Hacha, R, Wight, R.G., and Green, M.F., (1999), "Strengthening Concrete Beams with Prestressed FRP Sheets: Behaviour at Room and Low Temperatures." Proceedings of the 4th International Symposium on Fiber Reinforced Polymer for Reinforced Concrete Structures (FRPRCS-4), October 31-November 5, 1999, Baltimore, Maryland, USA, pp. 737-750.
  69. El-Hacha, R, Wight, R.G., and Green, M.F., (1999), "CFRP Wrapped Concrete Cylinders in Severe Environmental Conditions." Structural Faults + Repair 99. Proceedings of the 8th International Conference and Exhibition on Extending the Life of Bridges, Civil + Building Structures, July 13-15, 1999, London England, 12 p.
  70. El-Hacha, R, Wight, R.G., and Green, M.F., (1999), "Anchors for Prestressing FRP Sheets." Proceedings of the 1999 CSCE Annual Conference, Regina, Saskatchewan, Canada, June 2-5, 1999, pp. 235-244.
  71. El-Badry, M., and El-Hacha, R (1998), "Ultimate Strength and Behaviour of Concrete Members Strengthened with Externally Prestressed Carbon Fiber Composite Cables." Proceedings of the 5th International Conference on Short and Medium Span Bridges (SMSB-V), July 13-16, 1998, Calgary, Alberta, Canada, (CD Rom, 14p)
  72. El-Hacha, R, El-Badry, M. and Abdalla, H., (1996), "Strengthening of Prestressed Concrete Railway Ties Using Composite Straps." Proceedings of the 2nd International Conference on Advanced Composite Materials in Bridges and Structures (ACMBS-II), August 11-14, 1996, Montréal, Québec, Canada, pp. 489-496.
  73. El-Hacha, R, El-Badry, M. and Abdalla, H., (1996), "Strengthening of Concrete Members Using Externally Prestressed Composite Cables." Proceedings of the 3rd International Conference on Composite Engineering (ICCE/3), July 21-26, 1996, New Orleans, Louisiana, U.S.A., pp. 249-250.
  74. El-Hacha, R, El-Badry, M., Zielinski, Z. and Abdalla, H., (1996), "Retrofitting of Prestressed Concrete Crossties Using Composite Fabrics." Proceedings of the 3rd International Conference on Composite Engineering (ICCE/3), July 21-26, 1996, New Orleans, Louisiana, U.S.A. pp. 251-252.
  75. El-Hacha, R, El-Badry, M., and Abdalla, H., (1996), "Behaviour of Concrete Beams Externally Prestressed with Fiber Reinforced Plastic Cables." Proceedings of the XXIVth IAHS World Housing Congress "How to House a Nation: the challenge for the XXIst Century", May 27-31, 1996, Ankara, Turkey, pp. 814-825.

Technical/Research Reports, Design Manuals/Guidelines and Other Publications:

  1. El-Hacha, R., and Couture, C.S., "Educational Module No.9: An Introduction to Prestressing with FRPs", The Canadian Network of Centres of Excellence on Intelligent Sensing for Innovative Structures (ISIS Canada), Winnipeg, Manitoba, Canada, March 2008, 40p. (Refereed).
  2. El-Hacha, R., and Campbell, T.I., "Design Manual M05: Prestressing Concrete Structures with Fibre Reinforced Polymers", The Canadian Network of Centres of Excellence on Intelligent Sensing for Innovative Structures (ISIS Canada), Winnipeg, Manitoba, Canada, January 2008, 147p. (Refereed).
  3. "Prestressing Concrete with FRP", Published by the American Concrete Institute, Emerging Technology Series:  ACI 440.4R-04, 35P. This design guidelines was prepared by myself and Dr. Ivan Campbell (Queen's University) and Dr. Charles Dolan (Wyoming University) and submitted to the ACI 440 committee members (sixty voting members) for review and ballot before it was published by ACI in September 2004. (Refereed). 
  4. Bullock, B., and El-Hacha, R., "Progressive Collapse for Reinforced Concrete Buildings" Department of Civil Engineering, University of Calgary, December 2004, 74 pp.
  5. El-Hacha, R., and Brown, T., "Aurora 2 -Steel Connection" Department of Civil Engineering, University of Calgary, August 2004, 31 pp.
  6. El-Hacha, R., and Brown, T., "Load Cell Calibration for Spinduction Weld Inc." Department of Civil Engineering, University of Calgary, August 2004, 10 pp.
  7. El-Hacha, R, and Rizkalla, S., (2003), "Basic Material Characteristics of the Failed Wood H-Frame Structures 115 kV Transmission Line", submitted to Progress Energy, Research Report: IS-03/12, North Carolina State University (NCSU), Raleigh, North Carolina, USA, October 2003, 36pp.
  8. El-Hacha, R, and Rizkalla, S.,(2003), "Tensile Capacity of Specially Designed Straps for Securing Loads on Trucks", submitted to Lok-N Load Corp., Research Report: IS-03/11, North Carolina State University (NCSU), Constructed Facilities Laboratory (CFL), Raleigh, North Carolina, USA, October 2003, 6pp.
  9. El-Hacha, R, and Wight, R.G., (2002), "Design Manual for Concrete Structures Strengthened with FRPs for Military Engineer Officers". Royal Military College of Canada, Department of Civil Engineering, Kingston, Ontario, Canada, December 2002, 103 pp.
  10. El-Hacha, R, Rizkalla, S. (2002)," Behaviour of MMFX-2 Microcomposite Steel and Stainless Steel Rebars In Uniaxial Tension." Technical Report, North Carolina State University, Constructed Facilities Laboratory, Raleigh, North Carolina, USA, November 2002, 25pp.
  11. El-Hacha, R, Rizkalla, S. (2002), "Fundamental Material Properties of MMFX Steel Rebars." Research Report: RD-02/04, North Carolina State University, Constructed Facilities Laboratory, Raleigh, North Carolina, USA, July 2002, 62pp.
  12. Wight, R.G., Erki, M., El-Hacha, R, Heffernan, P., Porteous, J., and Honorio, U., (2002), "Post-Strengthening Damaged or Deteriorated Concrete Members Using Fibre-Reinforced-Polymer Sheets." Military Engineering Research Group, Department of Civil Engineering, Royal Military College of Canada, Kingston, Ontario, Canada, January 2002, 18p.
  13. El-Hacha, R, Wight, R.G., Green, M.F., and Erki, M., (2001), "Post-Strengthening Damaged or Deteriorated Concrete Members Using Fibre-Reinforced-Polymer Sheets." Military Engineering Research Group, Department of Civil Engineering, Royal Military College of Canada, Kingston, Ontario, Canada, January 2001, 38p.
  14. El-Hacha, R, Green, M.F., and Wight, R.G., (2000), "Strengthening of Reinforced Concrete Flexural Members using Externally Applied Steel Plates and Fibre Reinforced Polymer Sheets - A Survey." Queen's University, Department of Civil Engineering, Kingston, Ontario, Canada, December 2000, 241p.
  15. El-Hacha, R, Green, M.F., and Wight, R.G., (2000), "Material Behaviour at Low Temperature." Queen's University, Department of Civil Engineering, Kingston, Ontario, Canada, December 2000, 46p.
  16. El-Hacha, R and El-Badry, M., (1996), "Prediction Methods of Ultimate Capacity of Concrete Members Prestressed with Internal or External Unbonded Tendons - A Critical Review." Research Report No. CU/1296-1, Concordia University, Department of Civil Engineering, Montréal, Québec, Canada, 71p.
  17. El-Hacha, R and El-Badry, M., (1996), "State-of-the-Art Report on Fiber Reinforced Plastic (FRP) Materials." Research Report No. CU/1296-2, Concordia University, Department of Civil Engineering, Montréal, Québec, Canada, December 1996, 100p.
  18. El-Hacha, R and El-Badry, M., (1996), "State-of-the-Art Report on Bonded and Unbonded Prestressing Cables." Research Report No. CU/1296-3, Concordia University, Department of Civil Engineering, Montréal, Québec, Canada, December 1996, 102p.

Editorships:

  1. Raafat El-Hacha, and Sami H. Rizkalla, (Editors), Proceedings of Special Publication SP-245 "Case Histories and Use of FRP for Prestressing Applications", American Concrete Institute, Denver, Colorado, USA, November 8, 2006.
  2. Mamdouh Elbadry, Robert E. Loov, Jadwiga Kroman, Janaka Ruwanpura, Jeff Rankin, Raafat El-Hacha, Laszlo Dunaszegi, (Editors), Proceeding of the 2006 CSCE Annual Conference, Canadian Society for Civil Engineering, Calgary, Alberta, Canada, May 23-26, 2006.

 

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