Raafat El-Hacha

Professor

Department of Civil Engineering

PhD

Queen's University, 2000

MSc - Engineering

Concordia University, 1997

BSc - Engineering

Beirut Arab University, 1990

Contact information

Phone

Office: 403.220.4817

Location

CNRL Engineering Complex: ENF 204

Office hours

Monday and Friday: 2 until 4:30 pm
Wednesday: 2 until 3 pm

Courses

Fall

Behaviour and Design of Reinforced Concrete (ENCI 623)

Civil Engineering Project (ENCI 597)

Winter

Fibre Reinforced Polymers for Construction and Repair of Structures (ENCI 633)

Special Problems - Infrastructure Assessment and Repair (ENCI 619.20)

Structural Engineering I (ENCI 451)


Preferred method of communication

Please contact me by email


Research

Research activities

Using innovative and smart advanced materials for strengthening existing structures and for new construction, such as fibre reinforced polymers (FRP), shape memory alloy (SMA), and ultra-high performance concrete (UHPC), for hybrid structural systems in bridge applications and other structures.
 

Strengthening of concrete and steel structures with prestressed FRP

Fibre reinforced polymers (FRP) reinforcement has been used for flexural strengthening either as an externally bonded (EB) system in the form of FRP laminate applied to the soffit tension side of the reinforced concrete (RC) or steel members or as a near-surface mounted (NSM) system in the form of FRP strips or bars embedded inside a pre-cut groove into the concrete cover at the tension side of the RC member filled with epoxy adhesive. 

Although flexural strengthening using non-prestressed FRP reinforcement can remarkably increase the ultimate strength of a member, it does not significantly change the behaviour of the member under service loads or substantially increase the stiffness of the member. It should be noted that in non-prestressed FRP strengthening application only a portion of the strength of the FRP reinforcement is effective, and the system is a passive strengthening technique that remains inactive until additional loads are applied. To achieve an increase in the stiffness of the member, the strengthening system must be active rather than passive. Thus, to improve the efficiency of the strengthening technique, the FRP reinforcement should be prestressed. Therefore, by prestressing the FRP, the material is used more efficiently because a greater portion of its tensile capacity is employed, and it contributes to the load-bearing capacity under both service and ultimate conditions. Prestressing the EB and NSM FRP reinforcement requires a special anchorage system that should be practical in implementation.

In general, prestressing is used to enhance the flexural behaviour of reinforced concrete and steel members under service loads especially in bridges and (or) beams that have large spans and there is a limitation on the deflection and serviceability conditions. Because of their high tensile strength properties, FRP materials have great advantages for use in prestressing and post-tensioning strengthening applications. The specialized application of prestressing the FRP reinforcement for flexural strengthening of structures combines the noncorrosive and lightweight benefits of the FRP reinforcement with the advantages associated with external prestressing. However, the challenging part of the active strengthening system is the application of the prestressing force to the FRP material using appropriate practical anchorage and prestressing system.
 

Strengthening/reinforcing concrete structures using shape memory alloy

Recently, a new class of smart materials in the form Shape Memory Alloy (SMA) has been attracting the researchers from different fields due to their superior properties. The SMA is a unique class of alloy with the ability to undergo large deformation as well as energy dissipation capacities while maintaining a super-elastic response and return to its original shape through stress removal (Super Elasticity) or heating (Shape Memory Effect).

SMA as Internal Reinforcement. The superior properties of SMA make it a good reinforcement candidate for the use in the seismic design of structures. The exceptional property of SMA in recovering substantial inelastic deformation upon unloading makes it very beneficial in seismic design. Thus, if SMA is used at the location of plastic hinges with proper design limitations, the structure will dissipate the demand energy and return to its original shape when unloaded. The design of self-centering concrete beam-column connections reinforced using SMA is an innovative proposal and can be optimized for the use in real-life construction.

SMA in Strengthening Applications. Besides the material super-elasticity, corrosion and fatigue resistivity, SMA is mainly characterized by the Shape Memory Effect that represents the ability of the SMA to recover its original shape after being deformed beyond the elastic limits through heating. The strain recovered in this transformation process can be utilized for prestressing applications by eliminating the use of hydraulic jacks. By having the prestrained SMA reinforcement attached to the RC members and then applying heat above the activation temperature the SMA will recover the inelastic strain and thus a presressing force will be developed in the RC member. The pre-strained SMA itself can be used as the prestressed reinforcement in flexural strengthening of RC beams as well as active confinement of RC columns.


Biography

Dr. El-Hacha joined the department in 2004. Prior to his appointment, he was a Research Associate at North Carolina State University (2001-2003) and an NSERC Postdoctoral fellow at the Royal Military College of Canada (2000-2001).

Professional activities/memberships

Dr. El-Hacha is currently the Faculty representative to the Calgary local chapter of the Canadian Society for Civil Engineering. He is also an active member in the following organizations and technical committees:

  • Member, International Scientific Committee, "The 8th International Conference on Short and Medium Span Birdiges" (SMBS-8), Niagara Falls, Ontario, Canada, August 3-6, 2010. 
  • Chair, "Second Specialty Conference on Disaster Mitigation", (SCDM-2), to be held in conjunction with the CSCE 2010 Annual Conference, Winnipeg,  Manitoba, Canada, June 9 - 12, 2010.
  • Member, International Scientific Committee, "Fifth International Conference on FRP Composites in Civil Engineering", (CICE 2010), Beijing, China, September 27-29, 2010.
  • Member, International Advisory Committee, Second International Conference on Sustainable Construction Materials and Technologies. Ancona, Italy, June 28 - June 30, 2010.
  • Member, International Scientific Committee, The Fifth International Conference on Advanced Composite Materials in Bridges and Structures, ACMBS-V, Winnipeg, Manitoba, Canada, September 22-24, 2008.
  • Member, International Scientific Committee, The Fourth International Conference on Fibre Reinforced Polymer (FRP) Composites in Civil Engineering, CICE2008, Zürich, Switzerland, July 22-24, 2008.
  • The Canadian Society for Civil Engineering (CSCE)
  • International Institute for FRP in Construction (IIFC)
  • The American Society for Civil Engineering (ASCE)
  • The Precast/Prestressed Concrete Institute (PCI)
  • The American Concrete Institute (ACI)
  • The Post-Tensioning Institute (PTI)
  • ACI-ASCE Joint Committee 423 "Prestressed Concrete" (Associate Member)
  • ACI Committee 440 "Fiber Reinforced Polymer Reinforcement", and chair of ACI 440I Subcommittee "FRP-Prestressed Concrete"
  • ACI Committee 437 "Strength Evaluation of Existing Concrete Structures" (Associate Member)
  • ACI Committee 408 "Bond and Development of Reinforcement" (Associate Member)
  • Project Leader in the Intelligent Sensing for Innovation Structures (ISIS) Canada Research Network
  • Member of ISIS Canada Education Committee
  • Registered as Professional Engineer in Alberta, Canada
  • Member of the Association of Professional Engineers, Geologists and Geophysicists of Alberta (APEGGA) Investigative Committee
  • Registered as Professional Engineer in Lebanon

Dr. El-Hacha is participating in organizing the following international conferences as:

  • Member, International Scientific Committee, Second Asia-Pacific Conference on FRP in Structures, APFIS 2009, December 9-11, 2009, Seoul, Korea.
  • Member, Technical Committee, First International Workshop on Performance, Protection & Strengthening of Structures under Extreme Loading, PROTECT2007, August 20-22, 2007, Whistler, Canada
  • Member, Organizing Committee, First Asia-Pacific Conference on FRP in Structures, APFIS 2007, December 12-14, 2007, Hong Kong, China.
  • Member, International Scientific Committee, Third International Conference on Advanced Composites in Construction, ACIC 07, April 2-4, 2007, Bath, UK.
  • Member, National Organizing Committee, Third International Conference on FRP Durability & Field Applications of Fibre Reinforced Polymer (FRP) Composites for Construction, CDCC 2007, May 23-25, 2007, Quebec City, Quebec, Canada.
  • Member, Organizing Committee, Third International Conference on FRP Composites in Civil Engineering, CICE 2006, Official Conference of the International Institute for FRP in Construction, Miami, Florida, USA, December 13-15, 2006.
  • Secretary, Canadian Society for Civil Engineering (CSCE) 2006 Annual Conference, CSCE 2006 Annual Conference, Calgary, Alberta, Canada, May 23-26, 2006.
  • Chair, First Specialty Conference on Disaster Mitigation, SCDM-1, held in conjunction with the Canadian Society for Civil Engineering CSCE 2006 Annual Conference, Calgary, Alberta, Canada, May 23-26, 2006.
  • Member, International Organizing Committee, International Symposium on Bond Behvaiour of FRP in Structures, BBFS 2005, Organized by the IIFC Working Group on Bond between FRP and Concrete, Hong Kong, China, December 8-10, 2005
  • Member, Technical Committee, Third International Conference on Construction Materials: Performance, Innovations and Structural Implications, ConMat 05, to be held in Vancouver, Canada, August 22-24, 2005.
  • Member, Steering Committee, International Conference on Civil Engineering Infrastructure Systems, CEIS 2005, Beirut, Lebanon, June 6-8, 2005. (conference postponed to June 12-14, 2006).

Publications

Peer-reviewed journal papers (published or accepted) 

Michels, J., Shahverdi, M., Czaderski C., and El-Hacha, R., “Mechanical Performance of Fe-SMA Bars for Concrete Prestressing: ACI Structural Journal, Vol. 115, No. 6, November =December 2018, pp. 877-886

Varughese, K., Forrest, B., and El-Hacha, R., “Use of Shape Memory Alloys in Structures to Improve Seismic Performance”, Materials Science: Advances in Civil Engineering Journal, Accepted December 2018.

El-Hacha, R., and Rojob, H., “Flexural Strengthening of Large-Scale RC Beams Using Near-Surface Mounted Self-Prestressed Iron-Based Shape Memory Alloy Strips” PCI Journal, November-December, 2018, Vol. 63, Issue 6, pp. 51-62.

Rojob, H., and El-Hacha, R., “Performance of RC Beams Strengthened with Self-prestressed Fe-SMA Bars Exposed to Freeze-thaw Cycles and Sustained Load” Elsevier Journal of Engineering Structures, Vol. 169, August 2018, pp. 107-119.

Rojob, H., and El-Hacha, R., “Fatigue Performance of RC Beams Strengthened with Self-Prestressed Iron-based Shape Memory Alloys”, Elsevier Journal of Engineering Structures, Vol. 168, August 2018, pp. 35-43.

Iskander, M., El-Hacha, R., and Shrive, N., “Governing Failure Criterion of Short-span Hybrid FRP-UHPC Beams Subjected to High Shear Forces” Composite Structures, Vol. 185, February 2018, pp. 123-131

Oudah, F., and El-Hacha, R., “Innovative Self-Centering Concrete Beam-Column Connection Reinforced using Shape Memory Alloy”, ACI Structural Journal, Vol. 115, Issue 3, May 2018, pp. 607-620.

Oudah, F., and El-Hacha, R., “Joint Performance in Concrete Beam-Column Connections Reinforced Using SMA Bars” Elsevier Journal of Engineering Structures. Vol. 151, November 2017, PP. 745-760.

Rojob, H., and El-Hacha, R., “Self-prestressing using Fe-SMA for Flexural Strengthening of RC Beams,” ACI Structural Journal, Vol. 114, Issue 2, pp. 523-532, March-April 2017, 2017.

Oudah, F., Norlander, G., and El-Hacha, R., “Live-Load Factor and Load Combination for Bridge Systems Conveying Extremely Heavy Mining Trucks,” ASCE Journal of Bridge Engineering, Published online December 6, 2016, Vol. 22, Issue 4 (April 2017). 

Oudah, F., and El-Hacha, R., (2016) “Seismic Performance of Modified Single-Slotted-Beam Concrete Connection” Journal of Earthquake Engineering, published online November 15, 2016 http://www.tandfonline.com/doi/full/10.1080/13632469.2016.1206760, Vol. 21, Issue 5, PP. 726-751,

Oudah, F., and El-Hacha, R., “Plastic Hinge Relocation in Concrete Structures using the Double-Slotted-Beam System” Bulleting of Earthquake Engineering, Published online December 9, 2016., Volume 15, Issue 5, May 2016, pp. 2173-2199.

Abdelrahman, K., and El-Hacha, R., “Freeze-Thaw Durability Study on CFRP and SFRP Confined Concrete Columns”, Elsevier Journal of Engineering Structures, (ENGSTRUCT-D-13-00507R2 revision submitted).

Omran, H., and El-Hacha, R. “Effects of Sustained Load and Freeze-Thaw Exposure on RC Beams Strengthened with Prestressed NSM-CFRP Strips”, Advanced Structural Engineering, (Invited paper from the APFIS 2013 Conference), Vol. 17, No.12, December, 2014, pp. 1801-1816.

Abdelrahman, K., and El-Hacha, R., “Cost and Ductility Effectiveness of Concrete Columns Strengthened with CFRP and SFRP Sheets”, Polymers Journal, Special Issue: Rehabilitation of Civil Structures using FRP Composites, Volume 6, Issue 5, June 2014, pp. 1381-1402 (Invited paper from the SMAR 2013 Conference)

El-Hacha, R., 2014. Response to the discussion of the paper ‘Effect of SFRP Confinement on Circular and Square Concrete Columns’ by Raafat El-Hacha, Mohammad A. Mashrik [Eng Struct 36 (2012) 379–393] in response to Georgia E. Thermou and Stavroula J. Pantazopoulou, Volume 59, February 2014, p. 836.

El-Hacha, R., and Soudki, K., “Prestressed Near-Surface Mounted FRP Reinforcement for Concrete Structures – a Review”, Canadian Journal of Civil Engineering, Vol. 40, No.11, September 2013, pp. 1127-1139. Invited paper from the ACMBS 2012 Conference. Awarded the Casimir Gzowski Medal-2014.

Chen, D., and El-Hacha, R., “Cohesive Fracture Study of a Bonded Coarse Silica Sand Aggregate Bond Interface Subjected to Mixed-Mode Bending Conditions”, Polymers Journal, Special Issue: Fiber-Reinforced Polymer Composites in Structural Engineering, Volume 6, Issue 1, January 2014, pp. 12-38 (Invited paper from the APFIS 2013 Conference).

El-Hacha, R., and Oudah, F., “Post-Fatigue Monotonic Behavior of RC Beams Strengthened with Prestressed NSM CFRP Strips: Ductility Evaluation” ASCE Journal of Composites for Construction. Invited paper to the special issue of the 10th Anniversary of the IIFC, Volume 18, Issue 3, June 2014, pp. A4014002-1 to A4014002-13.

El-Hacha, R., and Aly, M.Y.Emam, “Anchorage System to Prestress FRP Laminates for Flexural Strengthening Steel-Concrete Composite Girders”, ASCE Journal of Composites for Construction. Volume 17, Issue 3, June 2013, pp. 324-335. 

Oudah, F., and El-Hacha, R., “Research Progress on the Fatigue Performance of RC Beams Strengthened in Flexure using Fiber Reinforced Polymers” Elsevier Journal Composites Part B: Engineering, Volume 47, April 2013, pp. 82–95. Recognised as one of the most downloaded articles in April-June, 2013. 

Chen, D., and El-Hacha, R., “Damage Tolerance and Residual Strength of Hybrid FRP-UHPC Beam” Elsevier Journal of Engineering Structures, Volume 49, April 2013, pp. 275–283.

El-Hacha, R., and Abdelrahman, K., “Slenderness Effect of Circular Concrete Specimens Confined with SFRP Sheets”, Elsevier Journal Composites Part B: Engineering, Volume 44, Issue 1 January 2013, pp.152-166.

Oudah, F., and El-Hacha, R., “Analytical Fatigue Prediction Model of RC Beams Strengthened in Flexure using Prestressed FRP Reinforcement”, Elsevier Journal of Engineering Structures, Volume 46, January 2013, pp. 173-183.

Oudah, F., and El-Hacha, R., “A New Ductility Model of Reinforced Concrete Beams Strengthened using Fiber Reinforced Polymer Reinforcement” Elsevier Journal of Composites Part B: Engineering, Volume 43, Issue 8, December 2012, pp. 3338–3347.

Michels, J., Czaderski, C., El-Hacha, R., Bronnimann, R., and Motavalli, M., “Temporary Bond Strength of Partly Cured Epoxy Adhesive for Anchoring Prestressed CFRP Strips on Concrete”, Elsevier Journal of Composite Structures, Volume 94, Issue 9, September 2012, pp. 2667-2676. 

Abdelrahman, K., and El-Hacha, R., “Behavior of Large-Scale Concrete Columns Wrapped with CFRP Sheets”, ASCE Journal of Composites for Construction, Volume 16, Issue 4, August 2012, pp. 430-439.

Oudah, F., and El-Hacha, R., “Performance of RC Beams Strengthened using Prestressed NSM-CFRP Strips Subjected to Fatigue Loading”, ASCE Journal of Composites for Construction, Volume 16, Issue 3, June 2012, pp. 300-307.

Oudah, F., and El-Hacha, R., “Fatigue Behaviour of RC Beams Strengthened with Prestressed NSM CFRP Rods” Elsevier Journal of Composite Structures, Volume 94, Issue 4, March 2012, pp. 1333–1342. 

El-Hacha, R., and Chen D., “Behaviour of Hybrid FRP-UHPC Beams Subjected to Static Flexural Loading”, Elsevier Journal of Composite Part B: Engineering, Volume 43, Issue 2, March 2012, pp. 582–593.

Chen D., and El-Hacha, R., “Investigation of Bond Behavior between Cast-in-Place UHPC and GFRP Plates using Coarse Silica Sand Bonded with Different Epoxy Adhesives - Experimental Study using Shear and Tension Tests”, Journal of ASTM International Vol. 9, No. 3, March 2012, pp. 3-

El-Hacha, R., Zangeneh, P., and Omran, H.Y., “Finite Element Modelling of Steel-Concrete Composite Beams Strengthened with Prestressed CFRP Plates”, International Journal of Structural Stability and Dynamics, Vol. 12, No. 1, January 2012, pp. 23-51.

El-Hacha, R., and Mashrik, A., “Effect of SFRP Confinement on Circular and Square Concrete Columns”, Elsevier Journal of Engineering Structures, Volume 36, Issue 1, January 2012, pp. 379-393. 

Omran, H.Y., and El-Hacha, R., “Nonlinear 3D Finite Element Modeling of RC Beams Strengthened with Prestressed NSM-CFRP Strips”, ASCE Journal of Construction & Building Materials, Volume 31, Issue 1, January 2012, pp. 74-85. 

Chen D., and El-Hacha, R., “Behaviour of Hybrid FRP-UHPC Beams in Flexure Under Fatigue Loading”, Elsevier Journal of Composite Structures, Volume 94, Issue 1, December 2011, pp. 253–266. 

El-Hacha, R., and Gaafar, M., “Flexural Strengthening of Reinforced Concrete Beams using Prestressed NSM CFRP Bars”, Prestressed Concrete Institute Journal. Vol. 56, No. 4, September 2011, pp. 134-151.

El-Hacha, R., Mirmiran, A., Cook, A., and Rizkalla, S.H., “Effectiveness of Surface Corrosion Inhibitors for Concrete Bridges”, ASCE Journal of Material in Civil Engineering, Vol. 23, No.3, March 2011, pp. 271-280.

El-Hacha, R., Abdelazeem, H., and Cariaga, I., “Effect of Casting Method and Shear-Span-to-Depth Ratio on the Behaviour of Ultra High Performance Concrete Cross Arms for High Voltage Transmission Poles”, Elsevier Journal of Engineering Structures. Volume 32, Issue 8, August 2010, pp. 2210-2220.

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, February 2010, Volume 14, Issue 1, pp. 83-93.

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, Vol. 34, No. 3, March 2007, pp. 463-471. 

El-Hacha, R., and Elbadry, M., “Strengthening Concrete Beams with Externally Prestressed Carbon Fiber”, PTI Journal, December 2006, pp. 53-70.

El-Hacha, R., ElAgroudy, H., and Rizkalla, S.H. “Bond Characteristics of High Strength Steel Reinforcement”, ACI Structural Journal, Vol. 103, No.6, Nov.-Dec. 2006, pp. 771-782. 

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. 

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, Vol. 31, No.2, March 2004, pp. 239-252. 

El-Hacha, R, Wight, R.G., and Green, M.F., “Prestressed CFRP Sheets for Strengthening Concrete Beams at Room and Low Temperatures”, ASCE Journal of Composites for Construction, January-February 2004, Volume 8, Issue 1, pp. 3-13. 

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.

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.

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.
 

Peer-reviewed special publications (equivalent to refereed journal papers)

Chen, D., and El-Hacha, R., “Full-Depth Threaded GFRP Rods for Enhanced Bond Performance” Proceedings of the ACI Special Publication SP-322-20: Towards Sustainable Infrastructure with Fiber Reinforced Polymer Composites, Washington, DC, USA, October 26-30, 2014.  Invited paper. Published June 2018.

Omran, H.Y. and El-Hacha, R., “Finite Element Modeling of RC Beams Strengthened with Prestressed NSM-CFRP Strips Subjected to Severe Environmental Conditions” Proceedings of the ACI Special Publication SP-304—10: Sustainable Performance of Concrete Bridges and Elements Subjected to Aggressive Environments: Monitoring, Evaluation, and Rehabilitation, Washington, DC, USA, October 26-30, 2014. Invited paper . Published October 2015.

Chen, D., and El-Hacha, R., “Investigation of Hybrid FRP-UHPC Beams under Flexural Loading using Finite Element Methods” Proceedings of the ACI Special Publications SP-301—1 Modeling of FRP Strengthening Techniques in Concrete Infrastructure (presented at the ACI Fall Convention, October 2011 in Cincinnati, Ohio), March 2015.  23p. Invited paper.

Oudah, F., and El-Hacha, R., “Non-Linear Finite Element Modeling of RC Beams Strengthened using Prestressed NSM CFRP Rods under Cyclic Loading”, Proceedings of the ACI Special Publications SP-301—2 Modeling of FRP Strengthening Techniques in Concrete Infrastructure (presented at the ACI Fall Convention, October 2011 in Cincinnati, Ohio), March 2015. 27p. Invited paper.

Oudah, F., and El-Hacha, R., “Fatigue Strength Prediction of RC Beams Strengthened in Flexure using Prestressed NSM CFRP Strips” Proceedings of the ACI Special Publications SP-275: 10th International Symposium on Fibre-Reinforced Polymer Reinforcement for Concrete Structures (FRPRCS-10), Tampa, Florida, USA, April 2-4, 2011, CD-Rom, Paper SP 275-38, 20p.

Elmahdy, A., El-Hacha, R., and Shrive, N.G., “Flexural Behavior of Hybrid Composite Girders for Bridge Construction” Proceedings of the ACI Special Publication SP-257:  “FRP Stay-in-Place Forms for Concrete Structures: Research Activities, Case Studies, and Field Applications”, Los Angeles, USA, April 3, 2008, (CD-Rom, Paper SP 257-2, 19p.) Invited paper.

Mertol, H.C., Rizkalla, S., Scott, P., Lees, J.M., and El-Hacha, R. “Durability of Concrete Beams Prestressed with CFRP”, Proceedings of the ACI Special Publication SP-245: “Case Histories and Use of FRP for Prestressing Applications”, Denver, Colorado, USA, November 8, 2006, (CD-Rom, Paper SP 245, 20p.). Invited paper.

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 ACI Special Publications SP-230: 7th International Symposium on Fibre-Reinforced Polymer Reinforcement for Concrete Structures (FRPRCS-7), Kansas City, USA, November 6–9, 2005, pp. 1647-1664, (CD-Rom, Paper SP-230-93).

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 ACI Special Publications SP-230: 7th International Symposium on Fibre-Reinforced Polymer Reinforcement for Concrete Structures (FRPRCS-7), Kansas City, USA, November 6–9, 2005, pp. 1681-1700, (CD-Rom, Paper SP-230-95).

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 ACI Special Publications SP-231: Ned Burns Symposium on Historic Innovations in Prestressed Concrete,, Kansas City, USA, November 6–9, 2005, pp. 219-236, (CD-Rom, Paper SP-231-13).

El-Hacha, R, Wight, R.G., and Green, M.F., “Strengthening Concrete Beams with Prestressed FRP Sheets: Behaviour at Room and Low Temperatures”, Proceedings of the ACI Special Publications SP-188: 4th International Symposium on Fiber Reinforced Polymer for Reinforced Concrete Structures (FRPRCS-4), Baltimore, Maryland, USA, October 31–November 5, 1999, pp. 737-750. 

 


Awards

Teaching Achievement Award, 2018

Teaching Excellence Award Nominee, 2018

Kay Pringle Memorial Award, 2017

IIFC President ‘s Award,2 016.

Killam Annual Professorship Award, 2016

Supervisory Excellence Award Nominee, 2016

Outstanding Teaching Performance, 2015

Outstanding Teaching Performance, 2015

Outstanding Teaching Performance, 2014

CSCE Casimir Gzowski Medal, 2014

Erasmus Mundus International Fellowship, 2014

Erasmus Mundus International Fellowship, 2013

Teaching Excellence Award, 2013

Service Excellence Award, 2012

CSCE Excellence in Innovation in Civil Engineering Award, 2011

Teaching Excellence Award, 2010

Professor Excellence Award for Civil Engineering, 2010

Schulich School of Engineering’s Early Research Excellence Award, 2008

Teaching Excellence Award, 2006