Department of Engineering / Profiles / Dr Renjie Mi,

Department of Engineering

Dr Renjie Mi, PhD, AFHEA

rm2175

Renjie Mi,

Marie Sklodowska-Curie Actions (MSCA) Fellow

Academic Division: Civil Engineering

Research group: Geotechnical and Environmental

Email: rm2175@cam.ac.uk

Personal website

Publications

Research interests

Dr Mi’s research interest is the net-zero design of concrete structures by carbonation modelling, developing carbon sequestration technology and carbon calculation. He has published nearly 50 peer-reviewed papers with over 1,200 citations and received four relevant research grants as a PI, totalling ~£225,000. His current Europe Horizon Marie Skłodowska-Curie Actions proposal received a total score of 97.2%. He was an editor of the sixth FRP-SSC Workshop proceedings and a guest editor of a journal special issue.

Some representative journal papers are as follows (Corresponding author is marked as ‘*’).

  1. Renjie Mi*, Sripriya Rengaraju, Abir AI-Tabbaa, 2025. Towards net-zero reinforced concrete: A critical review, Cement and Concrete Composites, 163, 106187. DOI: https://doi.org/10.1016/j.cemconcomp.2025.106187. (Q1)
  2. Renjie Mi*, Ganghua Pan, Feifei Zhou, 2025. Does carbonation affect the microstructural inhomogeneity of recycled aggregate concrete? Journal of Building Engineering, 99, 111650. DOI: https://doi.org/10.1016/j.jobe.2024.111650. (Q1)
  3. Yongshan Tan, Shichang Liu, Mithila Achintha, Renjie Mi*, 2024. Is it possible to make magnesia-based cement environmentally friendly? ACS Sustainable Chemistry & Engineering, 12, 16869−16883. DOI: https://pubs.acs.org/doi/10.1021/acssuschemeng.4c05985. (Q1)
  4. Yongshan Tan, Dingyi Yang, Gen Li, Renjie Mi*, 2024. Chromium immobilization in basic magnesium sulfate cement: Experimental and density functional theory studies, Construction and Building Materials, 428, 136322. DOI: https://doi.org/10.1016/j.conbuildmat.2024.136322. (Q1)
  5. Renjie Mi*, Yifei Wang, Tao Yu, Wengui Li, 2023. Effects of carbon-sequestering coral aggregate on pore structures and compressive strength of concrete, Low-carbon Materials and Green Construction 1(1), 21. DOI: https://doi.org/10.1007/s44242-023-00024-4.
  6. Renjie Mi, Tao Yu, Chi Sun Poon, 2023. Feasibility of utilising porous aggregates for carbon sequestration in concrete, Environmental Research, 228, 115924. DOI: https://doi.org/10.1016/j.envres.2023.115924. (Q1)
  7. Renjie Mi, Zhibin Zhang, Weiming Ji, Shichang Liu, Minfeng Kai, Kui Lin, Yongshan Tan, 2023. Solidification/stabilisation behaviours of Zn2+ in magnesium potassium phosphate cement: Experiments and density functional theory study, Environmental Research, 231, 116247. DOI: https://doi.org/10.1016/j.envres.2023.116247. (Q1)
  8. Renjie Mi, Kim Meow Liew, Ganghua Pan, 2022. New insights into diffusion and reaction of CO2 gas in recycled aggregate concrete, Cement and Concrete Composites, 129, 104486. DOI: https://doi.org/10.1016/j.cemconcomp.2022.104486. (Q1)
  9. Renjie Mi, Ganghua Pan, 2022. Inhomogeneities of carbonation depth distributions in recycled aggregate concretes: a visualisation and quantification study, Construction and Building Materials, 330, 127300. DOI: https://doi.org/10.1016/j.conbuildmat.2022.127300. (Q1)
  10. Renjie Mi, Ganghua Pan, 2022. Slowing down CO2 effective diffusion speeds in recycled aggregate concrete by using carbon capture technology and high-quality recycled aggregate, Journal of Building Engineering, 45, 103628. DOI: https://doi.org/10.1016/j.jobe.2021.103628. (Q1)
  11. Renjie Mi, Kim Meow Liew, Ganghua Pan, Tong Kuang, 2021. Carbonation resistance study and inhomogeneity evolution of recycled aggregate concretes under loading effects, Cement and Concrete Composites, 118, 103916. DOI: https://doi.org/10.1016/j.cemconcomp.2020.103916. (Q1)
  12. Renjie Mi, Ganghua Pan, Yang Li, Tong Kuang, 2021. Carbonation degree evaluation of recycled aggregate concrete using carbonation zone widths, Journal of CO2 Utilization, 43, 101366. DOI: https://doi.org/10.1016/j.jcou.2020.101366. (Q1)
  13. Renjie Mi, Ganghua Pan, Tong Kuang, 2021. Reducing carbonation zone and steel corrosion zone widths of recycled aggregate concrete through optimizing its mixing process, ASCE Journal of Materials in Civil Engineering, 33(5), 04021061. DOI: https://doi.org/10.1061/(ASCE)MT.1943-5533.0003672. (Q2)
  14. Renjie Mi, Ganghua Pan, Kim Meow Liew, 2021. Predicting carbonation service life of reinforced concrete beams reflecting distribution of carbonation zones, Construction and Building Materials, 255, 119367. DOI: https://doi.org/10.1016/j.conbuildmat.2020.119367. (Q1)
  15. Renjie Mi, Ganghua Pan, Kim Meow Liew, Tong Kuang, 2020. Utilizing recycled aggregate concrete in sustainable construction for a required compressive strength ratio, Journal of Cleaner Production, 276, 124249. DOI: https://doi.org/10.1016/j.jclepro.2020.124249. (Q1)
  16. Renjie Mi, Ganghua Pan, Yang Li, Tong Kuang, Xiaojun Lu, 2019. Distinguishing between new and old mortars in recycled aggregate concrete under carbonation using iron oxide red, Construction and Building Materials, 222, 601-609. DOI: https://doi.org/10.1016/j.conbuildmat.2019.06.171. (Q1)
  17. Renjie Mi, Ganghua Pan, Qizhen Shen, 2019. Carbonation modelling for cement-based materials considering influences of aggregate and interfacial transition zone, Construction and Building Materials, 229, 116925. DOI: https://doi.org/10.1016/j.conbuildmat.2019.116925. (Q1)

Teaching activity

Dr Mi is an Associate Fellow of the Higher Education Academy in the UK. He has multiple teaching experiences in higher education as a workshop lecturer, teaching assistant, summer school teacher, and supervisor, transferring his knowledge to undergraduates and postgraduates. His current teaching roles at the University of Cambridge are as follows. 

1. Teaching Assistant at the Department of Engineering

  • IA Elastic Beams
  • IA Dimensional Analysis 
  • IA Statics
  • IB Integrated Coursework A2

2. Undergraduate Supervisor 

  • 3D3 Structural materials and design

Other positions

Dr Mi also actively serves as a member of RILEM technical committees (e.g., 281-CCC) and ACF technical committee (e.g., DCS), and is an invited reviewer for journals (e.g., CCC and JCC). He was an organising committee member of the Sixth FRP-SSC Workshop and a session chair of the Seventh International Young Scholars Forum. 

Biography

Renjie Mi is an MSCA Individual Fellow at the University of Cambridge. He obtained his PhD at the City University of Hong Kong in 2021. Before joining the University of Cambridge in 2023, he was a Postdoctoral Fellow at the Hong Kong Polytechnic University.

Department role and responsibilities