Dr Olalekan Ojedokun
Researcher
Summary
Olalekan is a Post-doctoral Researcher in the Centre for Infrastructure Management (CIM) at the Materials and Engineering Research Institute (MERI), Sheffield Hallam University. He holds a PhD in Construction Materials from Sheffield Hallam University. Olalekan joined Sheffield Hallam University in 2017. He specializes on geopolymer concrete and other construction materials.
About
Olalekan is working on an EPSRC (EP/P026206/1) funded project on the Enhanced rice milling and maximised valorisation of rice milling by-products
- Durability properties of geopolymer concrete
- Pore properties of alkali aluminosilicate gels
- Rheology control
- Waste valorisation by alkali-activation
- Durability testing methodologies for novel cements
- Validation of tests and performance prediction
- Performance-based standardisation
Research
Current research is on Enhanced rice milling and maximised valorisation of rice milling by-products EPSRC (EP/P026206/1) funded by Innovate UK-India Governments. Collaborators on this project are Koolmill Systems Ltd., East End Foods Plc., Process Technologies Ltd., Marlow Foods Ltd., New Food Innovation Ltd.
Publications
Journal articles
Ojedokun, O., & Mangat, P. (2025). Bound chloride and free Cl/OH thresholds for corrosion initiation in alkali-activated concrete. Proceedings of Institution of Civil Engineers: Construction Materials. http://doi.org/10.1680/jcoma.24.00096
Ojedokun, O., & Mangat, P. (2023). Chemical composition and physico-mechanical properties of carbonated alkali activated concrete and mortar. Journal of Building Engineering, 71. http://doi.org/10.1016/j.jobe.2023.106480
Mangat, P., Ojedokun, O., & Lambert, P. (2021). Chloride-initiated corrosion in alkali activated reinforced concrete. Cement and Concrete Composites, 115, 103823. http://doi.org/10.1016/j.cemconcomp.2020.103823
Mangat, P., & Ojedokun, O.O. (2020). Free and bound chloride relationships affecting reinforcement cover in alkali activated concrete. Cement and Concrete Composites, 103692. http://doi.org/10.1016/j.cemconcomp.2020.103692
Mangat, P., & Ojedokun, O. (2019). Bound chloride ingress in alkali activated concrete. Construction and Building Materials, 212, 375-387. http://doi.org/10.1016/j.conbuildmat.2019.03.302
Mangat, P., & Ojedokun, O. (2018). Influence of curing on pore properties and strength of alkali activated mortars. Construction and Building Materials, 188, 337-348. http://doi.org/10.1016/j.conbuildmat.2018.07.180
Ojedokun, O., Adeniran, A.A., Raheem, S.B., & Aderinto, S.J. (2014). Cow Dung Ash (CDA) as Partial Replacement of Cementing Material in the Production of Concrete. British Journal of Applied Science & Technology, 4 (24), 3445-3454. http://doi.org/10.9734/bjast/2014/6447
Ojedokun, O., Odewumi, T.O., & Babalola, A.O. (2012). Cost Control Variables in Building Construction (A case study of Ibadan North Local Government, Oyo State, Nigeria). IOSR Journal of Mechanical and Civil Engineering, 4 (1), 32-37. http://doi.org/10.9790/1684-0413237
Ojedokun, O., & Olutoge, F.A. (2012). Application of Bousinesq’s and Westergaard’s formulae in analysing foundation stress distribution for a failed telecommunication mast. African Journal of Mathematics and Computer Science Research, 5 (4), 71-77. http://doi.org/10.5897/ajmcsr11.155
Ojedokun, O. (n.d.). Maintenance Model of Hostel Buildings for Effective Performance and Aesthetics. International Journal of Modern Engineering.
Conference papers
Mangat, P., & Ojedokun, O. (2024). Alkalinity and Cl-/Oh- affecting reinforcement corrosion in alkali activated concrete. In Ghafoori, N., Ganjian, E., Morel, J.-.C., Fabbri, A., & Khorami, M. (Eds.) SCMT6 Conference: Sustainable Construction Materials and Technologies Conference, Lyon, France, 9 June 2024 - 14 June 2024 (pp. 588-600). Coventry: Coventry University: https://docs.google.com/document/d/1TcZoRPoXL23JiLkZjBE6gif7UTfpUvxE/edit
Ojedokun, O., & Mangat, P. (2019). Suitability of phenolphthalein indicator method for alkali activated concrete. In Caprai, V., & Brouwers, H.J.H. (Eds.) 2nd International Conference on Sustainable Building Materials, Eindhoven, The Netherlands, 12 August 2019 - 15 September 2019 (pp. 363-372). Eindhoven University of Technology: https://research.tue.nl/en/publications/proceedings-icsbm-2019-2nd-international-conference-of-sustainabl
Ojedokun, O., & Mangat, P. (2018). Characterization and pore structure of rice husk ash cementitious material. ACI SP-326: Durability and Sustainability of Concrete Structures (DSCS-2018), 326 (326), 97-106. https://www.concrete.org/publications/internationalconcreteabstractsportal.aspx?m=details&ID=51710978
Mangat, P., & Ojedokun, O. (2018). Pore size distribution of an alkali activated cementitious (AACM) mortar. International Journal of Global Advanced Materials & Nanotechnology, 1 (3), 68. http://www.gratisoa.org/journals/index.php/GAMN/article/view/814
Ojedokun, O., & Mangat, P. (2016). Chloride diffusion in alkali activated concrete. In Galvez, J.C., Aguado de Cea, A., Fernandez-.Ordonez, D., Sakai, K., Reyes, E., J.Casati, M., ... de le Fuente, A. (Eds.) II International Conference on Concrete Sustainability - ICCS16, (pp. 521-531). Barcelona, Spain: International Center for Numerical Methods in Engineering (CIMNE): http://www.buildup.eu/en/events/iccs16-second-international-conference-concrete-sustainability-0
Theses / Dissertations
Elbuaishi, E.E. (2020). Properties of biomass fly ash concrete. (Doctoral thesis). Supervised by Mangat, P., & O'Flaherty, F. http://doi.org/10.7190/shu-thesis-00344
Ojedokun, O. (2018). Durability Properties of an Alkali ActivatedCementitious Material. (Doctoral thesis). Supervised by Mangat, P.