I am Professor of Concrete Structures (since 2000) and was Head of the Department of Civil and Environmental Engineering from 2011 to 2021 and Director of Research from 2001 to 2011.
My expertise concerns the durability and long-term performance of concrete and concrete structures. My research is aimed at better understanding deterioration processes, developing methods for assessing durability and monitoring deterioration, improving concrete specifications and repair methods and predicting the service life of concrete structures.
More information on my research interests, major grants, members of my research group and the facilities at my disposal can be found via the RESEARCH tab above.
I have supervised over 30 PhDs and 70 MSc research projects and have published around 240 papers (listed under the PUBLICATIONS tab).
My teaching of undergraduates and MSc students has included the philosophy of design, design and analysis of concrete structures, concrete technology, materials selection and materials science.
I am an elected Fellow of the Royal Academy of Engineering, the Institution of Civil Engineers and the Institution of Structural Engineers and an Honorary Fellow of the Institute of Concrete Technology
My professional work has included providing guidance to governments and to the designers and constructors of major infrastructure projects including the Riyadh Metro, the New Los Angeles Cathedral, the Southern Expressway in Sri Lanka, the Beirut Sea Front Project, the Channel Tunnel, the Great Man-Made River Project in Libya, Jubilee Line Extension, the new Tyne Tunnel, Tsing Ma and Tsing Lung Bridges in Hong Kong, Belgium's high level nuclear waste repository and the UK’s new nuclear power programme. More information can be found via the CONSULTING tab above.
et al., 2021, Effect of autogenous shrinkage on microcracking and mass transport properties of concrete containing supplementary cementitious materials, Cement and Concrete Research, Vol:150, ISSN:0008-8846
et al., 2021, Influence of supplementary cementitious materials on microstructure and transport properties of spacer-concrete interface, Cement and Concrete Research, Vol:149, ISSN:0008-8846, Pages:1-14
et al., 2021, Improving bond strength and mass transport properties of spacer-concrete interface with textured spacers, Materials and Structures, Vol:54, ISSN:1359-5997, Pages:1-16
et al., 2021, Analysis of autogenous shrinkage-induced microcracks in concrete from 3D images, Cement and Concrete Research, Vol:144, ISSN:0008-8846, Pages:1-15
et al., 2021, 3D imaging techniques for characterising microcracks in cement-based materials, Cement and Concrete Research, Vol:140, ISSN:0008-8846
et al., 2020, Combined effects of vertical spacers and segregation on mass transport properties of reinforced concrete, Materials and Structures, Vol:53, ISSN:1359-5997
et al., 2020, Microscopy techniques for determining water-cement (w/c) ratio in hardened concrete: A round-robin assessment, Materials and Structures, Vol:53, ISSN:1359-5997
Yio MHN, Wong H, Buenfeld N, 2019, 3D pore structure and mass transport properties of blended cementitious materials, Cement and Concrete Research, Vol:117, ISSN:0008-8846, Pages:23-37
et al., 2019, Anomalous water absorption in cement-based materials caused by drying shrinkage induced microcracks, Cement and Concrete Research, Vol:115, ISSN:0008-8846, Pages:90-104
Lee D, Wong HS, Buenfeld NR, 2018, Effect of alkalinity and calcium concentration of pore solution on the swelling and ionic exchange of superabsorbent polymers in cement paste, Cement & Concrete Composites, Vol:88, ISSN:0958-9465, Pages:150-164
Yio MHN, Wong HS, Buenfeld NR, 2017, Representative elementary volume (REV) of cementitious materials from three-dimensional pore structure analysis, Cement and Concrete Research, Vol:102, ISSN:0008-8846, Pages:187-202
Wu Z, Wong HS, Buenfeld NR, 2017, Transport properties of concrete after drying-wetting regimes to elucidate the effects of moisture content, hysteresis and microcracking, Cement and Concrete Research, Vol:98, ISSN:0008-8846, Pages:136-154
et al., 2017, The steel-concrete interface, Materials and Structures, Vol:50, ISSN:1871-6873
Yio MHN, Wong HS, Buenfeld NR, 2016, 3D Monte Carlo simulation of backscattered electron signal variation across pore-solid boundaries in cement-based materials, Cement and Concrete Research, Vol:89, ISSN:0008-8846, Pages:320-331
Alzyoud S, Wong HS, Buenfeld NR, 2016, Influence of reinforcement spacers on mass transport properties and durability of concrete structures, Cement and Concrete Research, Vol:87, ISSN:1873-3948, Pages:31-44
Abyaneh SD, Wong HS, Buenfeld NR, 2016, Simulating the effect of microcracks on the diffusivity and permeability of concrete using a three-dimensional model, Computational Materials Science, Vol:119, ISSN:0927-0256, Pages:130-143
Lee HXD, Wong HS, Buenfeld NR, 2016, Self-sealing of cracks in concrete using superabsorbent polymers, Cement and Concrete Research, Vol:79, ISSN:1873-3948, Pages:194-208
et al., 2015, 3D imaging of cement-based materials at submicron resolution by combining laser scanning confocal microscopy with serial sectioning, Journal of Microscopy, Vol:258, ISSN:0022-2720, Pages:151-169
Wu Z, Wong HS, Buenfeld NR, 2015, Influence of drying-induced microcracking and related size effects on mass transport properties of concrete, Cement and Concrete Research, Vol:68, ISSN:0008-8846, Pages:35-48
Wu Z, Wong HS, Buenfeld NR, 2014, Effect of confining pressure and microcracks on mass transport properties of concrete, Advances in Applied Ceramics, Vol:113, ISSN:1743-6753, Pages:485-495
Abyaneh SD, Wong HS, Buenfeld NR, 2014, Computational investigation of capillary absorption in concrete using a three-dimensional mesoscale approach, Computational Materials Science, Vol:87, ISSN:0927-0256, Pages:54-64
et al., 2014, Determining the slag fraction, water/binder ratio and degree of hydration in hardened cement pastes, Cement and Concrete Research, Vol:56, ISSN:0008-8846, Pages:171-181
Wong HS, Buenfeld NR, Matter K, 2013, Estimating the original cement content and water-cement ratio of Portland cement concrete and mortar using backscattered electron microscopy, Magazine of Concrete Research, Vol:65, ISSN:0024-9831, Pages:693-706
Wong HS, Zimmerman RW, Buenfeld NR, 2012, Estimating the permeability of cement pastes and mortars using image analysis and effective medium theory, Cem. Concr. Res., Vol:42, Pages:476-483
et al., 2011, Effect of entrained air voids on the microstructure and mass transport properties of concrete, Cem. Concr. Res., Vol:41, Pages:1067-1077
et al., 2010, On the penetration of rust from reinforcing steel into concrete due to chloride-induced corrosion, Corrosion Science, Vol:52, Pages:2469-2480
et al., 2009, Influence of the interfacial transition zone and microcracking on the diffusivity, permeability and sorptivity of cement-based materials after drying, Mag. Concr. Res., Vol:61, Pages:571-589