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Concrete Infrastructure Research Group (CIRG)

 

Journal Publications 

Blackshaw, G.A., Forsdyke, J.C. & Lees, J.M. (2024) Effects of exposure sequence and GGBS cement replacement on performance of concrete subjected to carbonation and chloride ingress. Mater Struct 57, 178. https://doi.org/10.1617/s11527-024-02438-3
White, C., Lees, J. M., & MacAskill, K. (2024). Bridging the information gap using targeted digital transformation: process mapping large-scale concrete activity. Building Research & Information, 1–20. https://doi.org/10.1080/09613218.2024.2380331
White, C., Forsdyke, J., Harrison, M., Desnerck, P. & Lees, J.M. (2024) Digital threads for sustainable concrete: A prototype traceability system, Structural Concrete, https://doi.org/10.1002/suco.202400398
Giménez Fernández, M. & Lees, J. M. (2024). Symmetric prism characterisation test to infer heat generation and heat conduction properties of concrete, Construction and Building Materials, v. 425, 135731, https://doi.org/10.1016/j.conbuildmat.2024.135731.
White, C., & Lees, J. M. (2023). Yield stress prediction from 3D reconstruction of fresh concrete slump. Cement and Concrete Research, 174, 107331. https://doi.org/10.1016/J.CEMCONRES.2023.107331
Forsdyke, J, Zviazhynski, B, Lees, J, & Conduit, G (2023). Probabilistic selection and design of concrete using machine learning. Data-Centric Engineering, 4, E9. https://doi.org/10.1017/dce.2023.5
Preinstorfer, P, Yanik, S, Kirnbauer, J, Lees, JM and Robisson, A (2023) Cracking behaviour of textile-reinforced concrete with varying concrete cover and textile surface finish, Composite Structureshttps://doi.org/10.1016/j.compstruct.2023.116859
Forsdyke, JC, Lees, JM. (2023) Model fitting to concrete carbonation data with non-zero initial carbonation depth. Mater Struct 56, 22. https://doi.org/10.1617/s11527-023-02104-0
Maier, M, Kechavarzi, C, Xu, X and Lees, JM. (2023) Temperature and humidity stability of fibre optic sensor cables for high resolution measurements.  Sensors 23, no. 3: 1296. https://doi.org/10.3390/s23031296
Mak, MWT and Lees, JM. (2023) Carbon reduction and strength enhancement in functionally graded reinforced concrete beams. Engineering Structures, v. 277, https://doi.org/10.1016/j.engstruct.2022.115358
Mak, MWT and Lees, JM. (2023) Arch action in reinforced concrete subjected to shear. Engineering Structures, v. 274, https://doi.org/10.1016/j.engstruct.2022.115096
Scott, P, Toumpanaki, E and Lees, JM. (2022) Solution Uptake in Cylindrical Carbon-Fibre-Reinforced Polymer (CFRP) Tendons, Advances in Polymer Technology, v. 2022, Article ID 1981256, 16 pages, 2022. https://doi.org/10.1155/2022/1981256
Mak, MWT and Lees, JM. (2022) Bond strength and confinement in reinforced concrete. Construction and Building Materials, 355. https://doi.org/10.1016/j.conbuildmat.2022.129012
Maier, M and Lees JM. (2022) Interlayer fracture behaviour of functionally layered concrete, Engineering Fracture Mechanics, 271, 108672. https://doi.org/10.1016/j.engfracmech.2022.108672
Preinstorfer P, Huber, T, Reichenbach, S, Lees JM and Kromoser, B. (2022) Parametric Design Studies of Mass-Related Global Warming Potential and Construction Costs of FRP-Reinforced Concrete Infrastructure, Polymers, 14 (12), 2383. https://doi.org/10.3390/polym14122383
Augusthus-Nelson L, Lees JM and Weekes L. (2021) Size effects in unreinforced and lightly reinforced concrete beams failing in flexure, Engineering Fracture Mechanics. https://doi.org/10.1016/j.engfracmech.2021.107987
Foster, RM and Morley, CT and Lees, JM. (2020) Shear Capacity of Reinforced Concrete T-Beams Retrofit with Externally Bonded CFRP Fabric: A New Perspective. Journal of Structural Engineering, 146. 04020253-04020253. ISSN 0733-9445 https://doi.org/10.1061/(ASCE)ST.1943-541X.0002826
Toumpanaki E, Lees JM and Terrasi GP. (2020) Analytical predictive model for the long-term bond performance of CFRP tendons in concrete, Composite Structures, 250, 112614 https://doi.org/10.1016/j.compstruct.2020.112614
Brault A, Lees JM. (2020) Wet casting of multiple mix horizontally layered concrete elements. Construction and Building Materials, 247, 118514.https://doi.org/10.1016/j.conbuildmat.2020.118514

Torelli G, Giménez Fernández M, Lees JM. (2020) Functionally graded concrete: Design objectives, production techniques and analysis methods for layered and continuously graded elements. Construction and Building Materials, 242, 118040. https://doi.org/10.1016/j.conbuildmat.2020.118040

Torelli G, Lees JM. (2020) Interface bond strength of lightweight low-cement functionally layered elements. Construction and Building Materials, 249, 118614. https://doi.org/10.1016/j.conbuildmat.2020.118614

Torelli G, Lees JM. (2019) Fresh state stability of vertical layers of concrete. Cement and Concrete Research, 120, 227-243. https://doi.org/10.1016/j.cemconres.2019.03.006

Toumpanaki E, Lees JM, Barbezat, M and Terrasi, G. (2019) Effect of internal moisture content and dynamic mechanical analysis testing conditions on the Tg values of CFRP tendons. Construction and Building Materials, 227, 116771. https://doi.org/10.1016/j.conbuildmat.2019.116771
Mak, M.W.T., Desnerck, P. and Lees, J.M. (2019) Corrosion-induced cracking and bond strength in reinforced concrete. Construction and Building Materials, 208, 228-241. https://doi.org/10.1016/j.conbuildmat.2019.02.151
Jin, F. and Lees, J.M. (2019) "Experimental Behaviour of CFRP Strap Strengthened RC Beams Subjected to Sustained Loads". ASCE Journal of Composites for Construction (accepted version) (doi)
Desnerck, P.R.H, Lees, J.M. and Morley, C.T. (2018) "Strut-and-tie models for deteriorated reinforced concrete half-joints". Engineering Structures161 41-54. (published copy) (doi)
Desnerck P., Lees J.M., Valerio P., Loudon N., Morley C.T. (2018) "Inspection of RC half-joint bridges in England: Analysis of current practice". Proceedings of the Institution of Civil Engineers - Bridge Engineering, 1-30 (accepted version) (doi)
Fayyad, T.M. and Lees, J.M. (2018) "Integrated fracture-based model formulation for RC crack analysis". ASCE Journal of Structural Engineering, 144(7). (accepted version) (doi) 
Toumpanaki E., Lees, J.M. and Terrasi G.P. (2018) "Bond durability of carbon fiber-reinforced polymer tendons embedded in high-strength concrete". ASCE Journal of Composites for Construction, 22 (5). (accepted version) (doi)
Tzokova, P.S. and Seffen, K.A. and Lees, J.M. (2018) Ashby chart inspired design of tall modular buildings. Technical Report. Cambridge University Engineering Department, Cambridge
Desnerck, P.R.H, Lees, J.M. and Morley, C.T. (2017) "The effect of local reinforcing bar reductions and anchorage zone cracking on the load capacity of RC half-joints". Engineering Structures152 865-877. (published copy) (doi)
Fayyad, T.M. and Lees, J.M. (2017) "Experimental investigation of crack propagation and crack branching in lightly reinforced concrete beams using digital image correlation". Engineering Fracture Mechanics182:487-505 (accepted version) (doi)  
Foster, R.M., Brindley, M., Lees, J.M., Ibell, T.J., Morley C.T., Darby, A.P. and Evernden, M.C. (2017) "Experimental investigation of reinforced concrete T-beams strengthened in shear with externally bonded CFRP sheets " ASCE Journal of Composites for Construction 21(2) 10.1061/(ASCE)CC.1943-5614.0000743 (accepted version) (doi)
Foster, R.M., Haria, S., Morley, C.T. and Lees, J.M. (2017) "Shear capacity of reinforced concrete subjected to tension: Experimental results and analysis " J. Struct. Eng., 143 (9),04017085, (accepted version) (doi)   
Lees, J.M., Toumpanaki, E., Barbezat, M., & Terrasi, G. (2017) " Mechanical and durability screening test methods for cylindrical CFRP prestressing tendons " ASCE Journal of Composites for Construction 0.1061/(ASCE)CC.1943-5614.0000727, 04016080. (accepted version) (doi)
Desnerck, P., Lees, J.M. and Morley, C.T. (2016) "Impact of the reinforcement layout on the load capacity of reinforced concrete half-joints " Engineering Structures v. 27 Nov., pp. 227-239 (published copy) (doi)
Foster, R.M., Morley, C.T. and Lees, J.M. (2016) "Modified Push-off Testing of an Inclined Shear Plane in Reinforced Concrete Strengthened with CFRP Fabric" ASCE Journal of Composites for Construction, 20(3) (postprint), (doi)
Michels, J., Barros, J., Costa, I., Sena-Cruz, J., Czaderski, C., Giacomin, G., Kotynia, R., Lees, J., Pellegrino, C. and Zile, E. (2016) Prestressed FRP Systems. In: Pellegrino C., Sena-Cruz J. (eds) Design Procedures for the Use of Composites in Strengthening of Reinforced Concrete Structures. RILEM State-of-the-Art Reports, vol 19. Springer, Dordrecht
Desnerck, P., Lees, J.M. and Morley, C.T. (2015) "Bond Behaviour of Reinforcing Bars in Cracked Concrete" Construction and Building Materials v. 94, Sept., pp. 126-136 (open access) (doi)
Toumpanaki, E., Lees, J.M. and Terrasi, G.P. (2015) "Shear Modulus of Cylindrical CFRP Tendons Exposed to Moisture" ASCE Journal of Composites for Constructionv. 19 (3) 10.1061/(ASCE)CC.1943-5614.0000521, 04014059 (postprint) (doi)
Yapa, H.D. and Lees, J.M. (2015) "Optimisation of Shear Strengthened Reinforced Concrete Beams" Proceedings of the ICE - Engineering and Computational Mechanicsv. 167 (2) pp. 82–96 (published copy) (doi)
Yapa, H.D. and Lees, J.M. (2014) "Rectangular Reinforced Concrete Beams Strengthened with CFRP Straps"ASCE Journal of Composites for Construction v. 18 (1), 04013032 (postprint) (doi)
Dirar, S., Lees, J.M. and Morley, C.T. (2013) "Precracked RC T-beams Repaired in Shear with Externally Bonded CFRP Straps" ACI Structural Journal v. 110 (5) pp. 855-866 (postprint) (journal)
Dirar, S., Lees, J.M. and Morley, C.T. (2013) "Phased Nonlinear Finite Element Analysis of Precracked RC T-Beams Repaired in Shear with CFRP Sheets" ASCE Journal of Composites for Construction v. 17 (4) pp. 476–487 (postprint) (doi)
Scott, P. and Lees, J.M. (2013) "Water, salt water and alkaline solution uptake in epoxy thin films" Journal of Applied Polymer Science v. 130 (3) pp. 1898-1908 (postprint) (doi)
Dirar, S., Lees, J.M. and Morley, C.T. (2012) "Precracked RC T-beams Repaired in Shear with Externally Bonded CFRP Sheets" ACI Structural Journal v. 109 (2) pp. 215-223 March-April 2012 (postprint) (journal)
Roberts, E.E., Lees J.M. and Hoult, N.A. (2012) "Flexural Fatigue Performance of CFRP Prestressed Concrete" Advances in Structural Engineering v.15, (4) pp. 619–631 (postprint) (doi)
Scott, P. and Lees, J.M. (2012) "Effects of solution exposure on the combined axial-shear behaviour of unidirectional CFRP rods"Composites Part A: applied science and manufacturing v. 43A (1) pp. 1599–1611 (postprint) (doi)
Hoult, N.A. and Lees, J.M. (2011) "Time-dependent Behaviour of RC beams Retrofitted with CFRP Straps" ASCE Journal of Composites for Construction v. 15 (1) pp. 75-84 Jan 2011 (postprint) (doi)
Lees, J.M. and Winistoerfer, A.U. (2011) "Non-laminated FRP Strap Elements for Reinforced Concrete, Timber and Masonry Applications"ASCE Journal of Composites for Construction v. 15 (2) pp. 146-155 Mar 2011 (postprint) (doi)
Yapa, H. D. and Lees, J.M. (2011) "Analysis of CFRP strap-strengthened reinforced concrete beams using the modified compression field theory (MCFT)" American Concrete Institute, ACI Special Publication (SP-275) pp. 541-560
Hoult, N.A. and Lees, J.M. (2009) "Modelling of an Unbonded CFRP Strap Shear Retrofitting System for RC Beams" ASCE Journal of Composites for Constructionv. 13 (4) pp. 292-301 (postprint) (doi)
Hoult, N.A. and Lees, J.M. (2009) "Efficient CFRP Strap Configurations for the Shear Strengthening of RC T-beams" ASCE Journal of Composites for Construction v. 13 (1) pp. 45-52 (postprint) (doi)
Scott, P. and Lees, J.M. (2009) "Uptake induced swelling and thermal expansion of CFRP tendons" Structures and Buildings, Proceedings of the Institution of Civil Engineers v. 162 (4) pp. 263-273 (published copy) (doi)
Yang, X.S., Lees, J.M. and Morley, C.T. (2008) "Fracture simulations of structures: which methods? " Communications in Numerical Methods in Engineering, v. 24 pp. 1373-1392 doi: 10.1002/cnm.1038 ISSN 1069-8299
Burgoyne, C.J, Lees, J.M. and Middleton, C.R., eds. (2007) Morley Symposium on Concrete Plasticity and its Application, Cambridge, UK, 23 July 2007 CUED Technical Report CUED/D-STRUCT/TR.222 . Cambridge University, Department of Engineering, Cambridge, UK. ISBN 9780903428293
Kesse, G.K. and Lees, J.M. (2007) "Experimental Behaviour of Reinforced Concrete Beams Strengthened with Prestressed CFRP Shear Straps", ASCE Journal of Composites for Construction v. 11 (4) pp. 375-383 (postprint) (doi)
Kesse, G.K. and Lees, J.M. (2007) "Nonlinear FE Analysis of Cracks in Tension and Shear", Magazine of Concrete Research v. 59 (4) pp. 233-244 (published copy) (doi)
Lees, J.M. (2006) "Behaviour of GFRP Adhesive Pipe Joints Subjected to Pressure and Axial Loadings", Composites, Part A: applied science and manufacturing v.37 , pp. 1171-1179 (postprint) (doi)
Mertol, H.C., Rizkalla, S., Scott, P., Lees, J.M. and El-Hacha, R. (2006) "Durability of concrete beams prestressed with CFRP". Case Histories and Use of FRP for Prestressing Applications, ACI Special Publication SP245-1, Eds R. El-Hacha and S.H. Rizkalla,
Hoult, N.A. and Lees, J.M. (2005) "Long-term Performance of a CFRP Strap Shear Retrofitting System" Seventh International Symposium on Fiber Reinforced Polymer for Reinforced Concrete Structures (FRPRCS-7). SP-230, Editors: C.K. Shield, J.P. Busel, S.L. Walkup and D.D. Gremel, American Concrete Institute International SP-230-40, pp.685-704.
Lees, J.M.and Makarov, G. (2004) "Mechanical/bonded Joints for Advanced Composite Structures", Structures and Buildings, Proceedings of the Institution of Civil Engineersv.157 SB1 pp. 91-98. ISSN 0965-0911
Terrasi, G.P. and Lees, J.M. (2003) "CFRP Prestressed Concrete Lighting Columns", Field Applications of FRP Reinforcement: Case Studies,Editors: S.H. Rizkalla and A. Nanni, American Concrete Institute International, SP-215, pp. 55-74. (postprint) (journal)
Lees, J.M., Winistoerfer, A.U. and Meier, U. (2002) "External Prestressed CFRP Straps for the Shear Enhancement of Concrete", ASCE Journal of Composites for Construction, v. 6(4) pp. 249-256. (postprint) (doi)
Lees J.M.(2001) "Fibre-reinforced Polymers in Reinforced and Prestressed Concrete Applications: Moving Forward", Progress in Structural Engineering and Materials v. 3 (2) pp. 122-131 (postprint) (doi)
Lees, J.M. and Burgoyne C.J. (2000) "Analysis of Concrete Beams with Partially-Bonded Composite Reinforcement", ACI Structural Journal,v. 97, No. 2, March-April, pp. 252-258. ISSN 0889-3241 (postprint)(journal)
Lees, J.M. and Burgoyne C.J. (1999c) "Transfer Bond Stresses Generated between FRP Tendons and Concrete", Magazine of Concrete Researchv. 51, no. 4, Aug., pp. 229-239. ISSN 0024-9831 (published copy)(doi)
Lees, J.M. and Burgoyne C.J. (1999b). "Experimental Study of the Influence of Bond on the Flexural Behaviour of Concrete Beams Pre-tensioned with AFRPs", ACI Structural Journalv. 96, no. 3., May-June, pp. 377-385. ISSN 0889-3241(postprint)(doi)
Lees, J.M.and Burgoyne, C.J. (1999a) "Design Guidelines for Concrete Beams Prestressed with Partially-Bonded FRP Tendons", Fourth International Symposium on Fiber Reinforced Polymer for Reinforced Concrete Structures (FRPRCS-4). SP-188, Editors: C.W. Dolan, S.H. Rizkalla and A. Nanni, American Concrete Institute International, SP-188-69, pp.807-816.
Lees, J.M., Winistoerfer, A.U. and Meier, U. (1999) "Non-Laminated Pin-Loaded CFRP Straps for the Shear Enhancement of Concrete", Fourth International Symposium on Fiber Reinforced Polymer for Reinforced Concrete Structures (FRPRCS-4), SP-188, Editors: C.W. Dolan, S.H. Rizkalla and A. Nanni, American Concrete Institute International, SP-188-83, pp 985-994.
Lees, J.M., Gruffyd-Jones, B. and Burgoyne, C.J. (1995). "Expansive Cement Couplers - A Means of Pre-tensioning Fibre-Reinforced Plastic Tendons", Construction and Building Materialsv. 9, no. 6, pp. 413-423. ISSN 0950-0618 (postprint)(doi)

Conference/Technical Publications

Cocking, S., Giménez Fernández, M., Tziavos, N. and Lees, J.M. (2023) Acoustic Emission Attenuation In Single-Mix And Functionally Layered Concrete Slabs, 11th International Conference on Fracture Mechanics of Concrete and Concrete Structures. https://doi.org/10.21012/FC11.092349
Preinstorfer, P., Mak, M.W.T & Lees, JM. (2023) Tailored structures with textile-reinforced concrete. CICE 2023 11th International Conference on FRP Composites in Civil Engineering (CICE 2023), Rio de Janeiro, Brazil. https://doi.org/10.5281/zenodo.8109698
Mak, M.W.T., Lees, J.M. (2023). Enhancing the Shear Performance of Reinforced Concrete Beams with Functional Grading. In: Ilki, A., Çavunt, D., Çavunt, Y.S. (eds) Building for the Future: Durable, Sustainable, Resilient. fib Symposium 2023. Lecture Notes in Civil Engineering, vol 349. Springer,  https://doi.org/10.1007/978-3-031-32519-9_151
Preinstorfer, P., Lees, J.M. (2023). Enhancing Bond Performance by Functional Grading of Concrete. In: Ilki, A., Çavunt, D., Çavunt, Y.S. (eds) Building for the Future: Durable, Sustainable, Resilient. fib Symposium 2023. Lecture Notes in Civil Engineering, vol 350. Springer https://doi.org/10.1007/978-3-031-32511-3_59
Preinstorfer, P., & Lees, J. (2022) Modelling of the splitting failure mode in textile-reinforced concrete. Fibre Polymer Composites in Construction 2022. 7-8 Sept 2022, Bradford, UK  https://doi.org/10.17863/CAM.88415

Weerasinghe, H.C., Mak, M.W.T. and Lees, J.M. (2022) Shear Behaviour in Slender Reinforced Concrete Beams without Stirrups, fib International Congress 2022 Oslo: Concrete Innovation for sustainability, 12-16 June 2022, Oslo, Norway https://doi.org/10.17863/CAM.84897

Forsdyke, J., & Lees, J. (2022) An analysis of the potential for improving cement efficiency through functionally graded concrete elements with durability-driven concrete specification. IABSE Symposium Prague 2022 Challenges for Existing and Oncoming Structures, 25-27 May 2022, Prague, Czech Republic https://doi.org/10.17863/CAM.84002

Mak, M.W.T., & Lees, J. (2022) Shear design in concrete beams without transverse reinforcement - A comparative study. IABSE Symposium Prague 2022 – Challenges for Existing and Oncoming Structures, 25-27 May 2022, Prague, Czech Republic https://doi.org/10.17863/CAM.80900

Mak, M.W.T., & Lees, J. (2021) Effectiveness of arch behaviour in reinforced concrete beams subjected to shear. Second fib Italy YMG Symposium on Concrete and Concrete Structures - Proceedings, 18-19 November 2021, Rome, Italy https://doi.org/10.17863/CAM.77462

Forsdyke, J., & Lees, J. (2021) Carbonation depth measurement of concretes exposed to different curing and preconditioning conditions, using image-processing tools. Second fib Italy YMG Symposium on Concrete and Concrete Structures - Proceedings, 18-19 November 2021, Rome, Italy https://doi.org/10.17863/CAM.78987

Forsdyke, J., & Lees, J. (2021)An analysis of existing models for carbonation coefficient applied to tests under natural conditions. fib Symposium 2021: Concrete Structures: New Trends for Eco-Efficiency and Performance, 14-16 June 2021, Lisbon, Portugal https://doi.org/10.17863/CAM.75504

Weerasinghe, H.C. and Lees, J.M. (2021), The Effect of Shear Crack Geometry on Aggregate Interlock Action in Reinforced Concrete, fib Symposium 2021: Concrete Structures: New Trends for Eco-Efficiency and Performance, 14-16 June 2021, Lisbon, Portugal https://doi.org/10.17863/CAM.72281

Mak, M.W.T. and Lees, J.M. (2020) Assessment of corrosion-induced bond deterioration in reinforced concrete: Towards a splitting crack-based approach. 2020 IABSE Congress – Resilient technologies for sustainable infrastructure. 3-5 February 2021, Christchurch, New Zealand

Mak, M.W.T. and Lees, J.M. (2020) Behaviour of reinforced concrete half-joint beams with improper anchorage. 2020 fib Symposium: Concrete Structures for Resilient Society. 22-24 November 2020, Shanghai, China

Mak, M.W.T., Sheasby, M.P. and Lees, J.M. (2020). Effects of anchorage deterioration on the shear behaviour of reinforced concrete half-joint beams, fib Symposium 2020 on Concrete Structures for Resilient Society. https://doi.org/10.17863/CAM.58832
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

 

The Concrete Infrastructure Research Group develops sustainable infrastructure, through an improved understanding of existing infrastructure assets, the use of new materials, and the creation of innovative structural solutions.

 

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