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Concrete Infrastructure Research Group (CIRG)

 
Torelli, G., & Lees, J. M. (2020). A Plasticity Theory Approach for the Stability Analysis of Vertical Layers of Concrete in the Fresh State. In V. Mechtcherine, K. Khayat, & E. Secrieru (Eds.), Rheology and Processing of Construction Materials. Rheocon2 & SCC9 (pp. 628–635). Dresden, Germany: Springer International Publishing. 

Mak, M.W.T. and Lees, J.M. (2019) Bond degradation and reduced cover in concrete with transverse reinforcement.  Proceedings of the 1st fib Italy YMG Symposium on Concrete and Concrete Structures http://https://doi.org/10.17863/CAM.44540

Mak, M.W.T. and Lees, J.M. (2019) Development of a novel bond test set-up for concrete with transverse reinforcement. 2019 fib Symposium: Concrete - Innovations in Materials, Design and Structures. 27-29 May 2019, Kraków, Poland [Accepted Feb 2019]
Torelli G, Lees JM. (2019) Functionally graded concrete elements composed of vertical layers of different mixes. Proceedings of IABSE Symp., Guimaraes (Portugal).
Toumpanaki, E, Lees JM, Terrasi GP (2019) Effect of bond in the development length of CFRP pretensioned beams, IABSE Symposium 2019 Guimarães, Towards a Resilient Built Environment - Risk and Asset Management, March 27-29, 2019, Guimarães, Portugal, IABSE, Swizerland, pp. 635-642
Desnerck,P., Valerio, P., Lees, J.M. and Loudon, N.  (2018) "Suggestions for improved reinforced concrete half-joint bridge inspection in England" 5th International Conference on Concrete Repair, Rehabilitation and Retrofitting, ICCRRR 2018, Cape Town, South Africa 
Mak, M., Desnerck, P. and Lees, J.M. (2018) "Correlation between surface crack width and steel corrosion in reinforced concrete" 5th International Conference on Concrete Repair, Rehabilitation and Retrofitting, ICCRRR 2018, Cape Town, South Africa 
Foster, R.M, Morley, C.T. and Lees, J.M. (2017) "An upper-bound plastic approach to the capacity of reinforced concrete slab-on-beam structures strengthened in shear with externally bonded CFRP" Proceedings of the 8th Biennial Conference on Advanced Composites In Construction, ACIC 2017 Sheffield, UK, Sept 2017 
Gibbons, N., Lees, J. M. and Al-Tabbaa, A. (2017) "Next generation doctoral training for future infrastructure and built environment" Proceedings of the International Symposium for Next Generation Infrastructure, ISNGI 2017 London, UK, Sept 2017 
Jin, F. and Lees, J.M. (2017) "Experimental investigation of time-dependent shear deformation in RC beams strengthened with CFRP straps" SMAR 2017 Switzerland, Sept 13-15, 2017 
Desnerck, P., Lees, J.M. and Morley, C.T. (2016) "Reinforcement lay-out implications for reinforced concrete half-joint structures" fib Symposium 2016 South Africa, Nov 21-23, 2016 
Sivanendran, S. and Lees, J.M. (2016) "The effects of moisture and stress on CFRP-concrete interactions in CFRP pre-stressed concrete " fib 11th International PhD Symposium in Civil Engineering, Tokyo, Japan, Aug 29-31, 2016
Sivanendran,S., Lees, J.M. (2015) " Durability of CFRP pre-stressed concrete subjected to stress and moisture exposure" Proceedings of the 12th International Symposium on Fiber Reinforced Polymers for Reinforced Concrete Structures (FRPRCS-12) & The 5th Asia-Pacific Conference on Fiber Reinforced Polymers in Structures (APFIS-2015) Joint Conference, Dec 14-16 2015. 
Fayyad, T.M. and Lees J.M. (2015) "Evaluation of a minimum flexural reinforcement ratio using fracture-based modelling" Proceedings of the IABSE2015 Conference: Providing solutions to global challenges, Geneva, Switzerland pp. 735-742
Fayyad, T.M. and Lees J.M. (2015) "Integrated fracture-based model for the analysis of cracked reinforced concrete beams" Proceedings of the Concrete2015 conference, 27th Biennial National Conference of the Concrete Institute of Australia in cojunction with the 69th RILEM Week conference, Melbourne, Australia, pp. 1233-1242
Foster, R.M., Lees J.M. and Morley, C.T. (2015) "An Experimental Investigation into the Effect of Externally Bonded CFRP Fabrics on the Shear Behaviour of Reinforced Concrete T-beams" Proceedings of the 7th Biennial Conference on Advanced Composites In Construction, Cambridge, Sept 9-11 2015. Eds J. Lees and S. Keighley
Jin, F., Lees, J.M. (2015) "Time-Dependent Load-Sharing in RC Beams Strengthened with CFRP Straps" Proceedings of the 7th Biennial Conference on Advanced Composites In Construction, Cambridge, Sept 9-11 2015. Eds J. Lees and S. Keighley
Brault, A., Hoult, N.A. & Lees, J.M. (2015)"Development of a Relationship between External Measurements and Reinforcement Stress"Proc SPIE 9435, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2015, 943519 (March 27, 2015); doi:10.1117/12.2175830 (published copy) (doi)
Sivanendran, S. & Lees, J.M. (2015) "Interaction between CFRP tendons and concrete when subjected to long-term moisture exposure" fib symposium 2015, Copenhagen
Desnerck, P., Lees, J.M. and Morley, C. (2015) "Impact of Material Deterioration on the Strength of Reinforced Concrete Half Joint Structures," Proceedings of the 2015 IABSE Workshop on Safety, Robustness and Condition Assessments of Structures, Helsinki, Finland,p. 8 (postprint)
Desnerck, P., Lees, J.M. and Morley, C.T. (2014) "Assessment of Reinforced Concrete Half-joint Structures: Dealing with Deterioration"Proceedings of the 2014 PCI Convention and National Bridge Conference, Washington DC, United States [CD-ROM]
Foster, R.M., Morley, C.T. and Lees, J.M.(2014) "Relating Shear Transfer Experiments to FRP Strengthened Beam Behaviour in Shear." 7th international Conference on Fiber Reinforced Polymer (FRP) Composites in Civil Engineering (CICE 2014).
Jin, F. and Lees, J.M.(2014) "Time - Dependent Shear Transfer in Reinforced Concrete Beams Strengthened with CFRP Straps" 7th international Conference on Fiber Reinforced Polymer (FRP) Composites in Civil Engineering (CICE 2014).
Toumpanaki, E., Lees, J.M. and Terrasi, G.P. (2014)."Measurement of the Sand Coating Layer in CFRP Tendons through Image Processing"7th international Conference on Fiber Reinforced Polymer (FRP) Composites in Civil Engineering (CICE 2014).
Fayyad, T.M. and Lees, J.M. (2014) "Application of Digital Image Correlation to Reinforced Concrete Fracture" Procedia Materials Science - 20th European Conference on Fracture, Eds Z. Zhang, B. Skallerud, C. Thaulow, E. Østby and J. He, Elsevier v. 3 , pp. 1585–1590 (published copy)(doi)
Foster, R.M., Morley, C.T. and Lees, J.M. (2013) "Shear Transfer Across a Diagonal Crack in Reinforced Concrete Strengthened with Externally Bonded FRP Fabric"Advanced Composites in Construction (ACIC) 2013 Conference Proceedings, September 10-12, pp. 181-192.
Toumpanaki, E., Lees, J.M. and Terrasi, G.P. (2013) "Effect of Moisture Uptake on the Shear Stiffness of CFRP Tendons and the Role of the Manufacturing Route" FRPRCS-11 -11th International Symposium on Fibre Reinforced Polymer Reinforcement for Concrete Structures
Hoult, N. A. and Lees, J.M. (2012) "Long-Term Tests on CFRP Shear Retrofitted Beams: Ultimate Capacity" 6th International Conference on Advanced Composite Materials in Bridges and Structures (ACMBS-VI), Eds A. Fam, M. Green and G. Wight, The Canadian Society for Civil Engineering. ISBN 978-1-894662-19-2
Augusthus Nelson, L. and Lees, J.M. (2010) "Size Effects in Reinforced Concrete Beams Strengthened with CFRP Straps" CICE 2010 - The 5th International Conference on FRP Composites in Civil Engineering September 27-29, 2010 Beijing, China Editors: Ye LP, Feng P, Yue QR. Advances in FRP composites in Civil Engineering. pp. 789-793.
Yapa, H. D. and Lees, J.M. (2009) "Optimum shear strengthening of reinforced concrete beams with prestressed carbon fibre reinforced polymer (CFRP) straps" 4th International Conference on Advanced Composites in Construction (ACIC 09), Edinburgh, UK, pp. 214-226.
Lees, J.M. (2009) "Sensitivity of NSM Reinforcement Forces to Bond-Slip Effects"4th International Conference on Advanced Composites in Construction (ACIC 09), Edinburgh, UK, pp. 227-238.
Roberts, E., Hoult, N.A. and Lees, J.M. (2009) "Fatigue Performance of CFRP Prestressed Concrete Lighting Poles" FRPRCS-9 Fibre Reinforced Polymer Reinforcement for Concrete Structures, Sydney, Australia
Scott, P. and Lees, J.M. (2009) "Chemical Durability of Silicon Dioxide Coatings for FRP tendons" FRPRCS-9 Fibre Reinforced Polymer Reinforcement for Concrete Structures, Sydney, Australia
Lees, J.M. (2008) "Prestressed FRP/Concrete Systems – Local material and global system challenges" Fourth International Conference on FRP Composites in Civil Engineering (CICE2008), Zurich, Switzerland, KN3, ISBN:978-3-905594-50-8
Hoult, N.A. and Lees, J.M. (2008) "Comparison of finite element approaches for modeling unbonded FRP shear reinforcement " Advanced Composite Materials in Bridges and Structures, Winnipeg, Canada, Sept 2008Paper No. 97, ISBN: 978-0-9736430-7-7
Hassan Dirar, S. M. O., Morley, C. T., and Lees, J.M. (2007) "Effect of Effective Depth and Longitudinal Steel Ratio on the Behaviour of Precracked RC T-beams Strengthened in Shear with CFRP Fabrics" FRPRCS-8 Fibre Reinforced Polymer Reinforcement for Concrete Structures Patras, Greece, paper 5-8 ISBN 978-960-89691-0-0
Hoult, N.A. and Lees, J.M. (2007) "Approaches to Modeling an Unbonded CFRP Strap Shear Strengthening System for RC Beams" FRPRCS-8 Fibre Reinforced Polymer Reinforcement for Concrete Structures paper 5-3 ISBN 978-960-89691-0-0
Mertol, H.C., Rizkalla, S., Scott, P., Lees, J.M. and El-Hacha, R. (2007) "Durability and Fatigue Behavior of Concrete Beams Prestressed with CFRP", The 3rd International Conference on Durability & Field Applications of FRP Composites for Construction, Quebec City, Canada.
Scott, P. and Lees, J.M. and Sutcliffe, M.P.F. (2007) "Novel modelling of solution uptake in CFRP tendons" FRPRCS-8 Fibre Reinforced Polymer Reinforcement for Concrete Structures paper 5-3 ISBN 978-960-89691-0-0
Yang, X.S., Lees, J.M. and Morley, C.T. (2007) "Comparison of CFRP Strengthening Methods: Straps vs Fabrics" FRPRCS-8 Fibre Reinforced Polymer Reinforcement for Concrete Structures paper 5-4 ISBN 978-960-89691-0-0
Hassan Dirar, S. M. O., Morley, C. T., and Lees, J.M. (2007) "Effect of Load History on the Behaviour of Reinforced Concrete Beams Retrofitted in Shear with CFRP Systems", Proc. of the 3rd International Conference on Advanced Composites in Construction (ACIC 07), Bath, United Kingdom, pp 292-300. ISBN 086197 138 8
Yang, X.S., Lees, J.M. and Morley, C.T. (2007), "Nonlinear Finite Element 3-D Simulations of CFRP Shear Strengthening", Proc. of the 3rd International Conference on Advanced Composites in Construction (ACIC 07), Bath, United Kingdom, pp 205-212. ISBN 086197 138 8
Hassan Dirar, S.M.O., Hoult, N.A.,Morley, C.T. and Lees, J.M. (2006) "Shear Strengthening of Pre-cracked Reinforced Concrete Beams Using CFRP Straps", Proceedings of the 2nd fib Congress fib, Italy, 158-159, Vol. 2 (Paper 10-70 ISBM 978-88-89972-06-9 with two CDs).
Scott, P. and Lees, J.M. (2006) "CFRP Prestressing Tendons: Solution Uptake and Swelling Effects" Third International Conference on Composites in Civil Engineering (CICE2006) 13-15 December 2006, Miami, Florida. Editors, Mirmiran, A. and Nanni, A., ISBN 0615135862 pp 467-470.
Yang, X.S., Lees, J.M. and Morley, C.T. (2006) "Application of virtual ant algorithms in the optimization of CFRP shear strengthened precracked structures". In: Proceedings of the 6th International conference on computational science (ICCS 2006). Lecture Notes in Computer Science , 3991. Springer, Berlin, Germany, pp. 834-837. ISBN 3540343792
Yang, X.S., Lees, J.M. and Morley, C.T. (2006) "Optimization of CFRP strengthening of precracked structures using genetic algorithms",Computational Modelling of Concrete Structures: Proceedings of the EURO-C 2006 Eds G Mescheke, R. de Borst, H. Mang, N. Bicanic, March, Austria, Published by Taylor & Francis ISBN 0415397499 pp 915-920.
Yang, X.S., Lees, J.M. Morley, C.T. (2006) "Nonlinear analysis of the fracture of reinforced concrete beams under time-dependent loading", Proceedings of the 2nd fib Congress fib , Italy, 246-247, Vol. 1 (Paper 3-43 ISBN 978-88-89972-05-2 with two CDs).
Burgoyne, C.J., Lees, J.M., Middleton, C.R. and Morley, C.T. (2005) "Concrete materials, composites and structures". Concrete 39 (8). pp. 22-23. ISSN 0010-5317
Lees, J.M., Morley, C.T., Yang, X.S. and Hasan Dirar, S.M.O. (2005) "Fibre-reinforced polymer strengthening of pre-cracked concrete structures". Concrete39 (9). pp. 36-37. ISSN 0010-5317
Hoult, N.A. and Lees, J.M. (2004) "Shear Retrofitting of Reinforced Concrete Beams Using CFRP Straps" Advanced Composite Materials in Bridges and Structures, Calgary, Alberta, July 2004 Editors, M. El-Badry and L. Dunaszegi, The Canadian Society of Civil Engineering.ISBN 1-894662-06-7
Terrasi, G.P. and Lees, J.M. (2004) "Static and Dynamic Behaviour of CFRP Pre-stressed Concrete Lighting Columns.", Advanced Polymer Composites for Structural Applications in Construction ACIC 2004 Editors, L.C. Hollaway, M.K. Chryssanthopoulos and S.S.J. Moy, Woodhead Publishing Ltd,Cambridge,pp 420-427. ISBN 1855737361
Lees, J.M. (2004) "Combined pressure/tension behaviour of adhesive-bonded GFRP pipe joints", Advanced Polymer Composites for Structural Applications in Construction ACIC 2004 Editors, L.C. Hollaway, M.K. Chryssanthopoulos and S.S.J. Moy, Woodhead Publishing Ltd,Cambridge,pp 377-383. ISBN 1855737361
Agyei, B.B., Lees, J.M.and Terrasi, G.P. (2003) "Fatigue of High Strength Concrete Beams Pretensioned with CFRP Tendons", FRPRCS-6 Fibre Reinforced Polymer Reinforcement for Concrete Structures Editor, K.H. Tan, National University of Singapore, Volume 1, pp .935-944. ISBN 9812384014
Kesse, G.and Lees, J.M. (2003) "Shear Critical RC Beams Strengthened with CFRP Straps", FRPRCS-6 Fibre Reinforced Polymer Reinforcement for Concrete Structures Editor, K.H. Tan, National University of Singapore, Volume 1, pp .447-456. ISBN 9812384014
Lees, J.M.and Makarov, G. (2002) "GFRP Pipe Joints Reinforced Using Composite Pins";, Advanced Polymer Composites for Structural Applications in Construction Editors, R.A. Shenoi, S.S.J. Moy and L.C. Hollaway, Thomas Telford Limited, London, pp 291-299. ISBN 072773122X
Kesse, G., Chan, C. and Lees, J.M. (2001) "Non-linear Finite Element Analysis of RC Beams Prestressed with CFRP Straps", FRPRCS-5 Fibre Reinforced Plastics for Reinforced Concrete Structures Editor, C.J. Burgoyne, Thomas Telford Limited, Volume 1, pp 281-290. ISBN 0727730290
Winistoerfer, A.U., Meier, U. and Lees, J.M. (2001) "CARBOSTRAP - Advanced Composite Tendons", ACUN-3, Technology Convergence in Composites Applications Editors: S. Bandyopadhyay, N. Gowripalan and N. Drayton, pp 24-30. ISBN 0733407919
Lees, J.M., Winistoerfer, A.U. and Meier, U. (2000) "Behavior of Concrete Beams confined with Prestressed CFRP Straps", Advanced Composite Materials in Bridges and Structures (ACMBS-III) Editors: J. Humar and A.G. Razaqpur, The Canadian Society for Civil Engineering, pp 185-192. ISBN 0770904475
Lees, J.M. and Burgoyne, C.J. (1997). "Rigid Body Analysis of Concrete Beams Pre-tensioned with Partially Bonded AFRP Tendons", Procs Third International Symposium on Non-Metallic (FRP) Reinforcement for Concrete Structures, Volume 2, October 1997, pp. 759-766. ISBN 4931451004
Lees, J.M. and Burgoyne, C.J. (1996b). "The Use of Aramid Fibre Reinforced Plastics as Prestressing Tendons for Concrete", Procs FIP Symposium on Post-Tensioned Concrete Structures, London, pp. 607-614. ISBN 0946691576
Lees, J.M. and Burgoyne, C.J. (1996a). "Influence of Bond on Rotation Capacity of Concrete Pre-tensioned with AFRP", Advanced Composite Materials in Bridges and Structures (ACMBS-II), Editor: M. El-Badry, Montreal, Canada, pp. 901-908. ISBN 0921303645