Project Overview
This project focuses on the “Research and Development on Standardization of CO₂ Fixation Assessment in Concrete,” aiming to establish methods for measuring and evaluating CO₂ fixation in concrete by 2030. The goal is to develop quality control techniques for concrete that maximize CO₂ emission reduction and fixation, and to achieve international standardization of these methods.。
Duration
The project is scheduled to run from fiscal year 2021 through fiscal year 2025.
Collaborating Institutions
The University of Tokyo (Lead Institution)
Pacific Consultants Co., Ltd.
Rigaku Corporation
Chiba University
University of the Ryukyus
Hiroshima University
Hokkaido University
Nagoya University
Research topics
Topic 1：Development of Methods for Evaluating CO₂ Fixation in Concrete Materials and Concrete
Total Organic Carbon (TOC) Measurement Techniques for Organic Material Inclusion: Developing methods to measure TOC when organic materials are incorporated into concrete.
Application of Powder X-Ray Diffraction (XRD)/Rietveld Analysis/External Standard Methods: Utilizing these techniques to assess CO₂ fixation in concrete.
Development of Analytical Equipment for Large Concrete Structures: Creating tools to analyze CO₂ fixation in sizable concrete constructions.
Topic 2：Development of a Framework to Guarantee CO₂ Fixation in Materials During Structural Service Life
New Accelerated Testing Methods and Frameworks for Future Carbonation Fixation Guarantees: Investigating accelerated carbonation procedures to ensure long-term CO₂ fixation.
Evaluation of Temperature and Humidity Effects on CO₂ Fixation: Studying how environmental factors influence CO₂ fixation in concrete.
Impact of Finishing and Cracks on CO₂ Fixation: Assessing how surface treatments and structural cracks affect CO₂ fixation
Research on Establishing Monitoring Techniques: Developing methods to monitor CO₂ fixation over time
Topic 3: Technological Development Related to Quality Evaluation and Management Methods for CO₂ Fixation
Related Research (DOI)
Saeki, N., Kurihara, R., Ohkubo, T., Teramoto, A., Suda, Y., Kitagaki, R., & Maruyama, I. (2025). Semi-dry natural carbonation at different relative humidities: Degree of carbonation and reaction kinetics of calcium hydrates in cement paste. Cement and Concrete Research, 189(December 2024), 107777. https://doi.org/10.1016/j.cemconres.2024.107777
Cheng, L., Kurihara, R., Ohkubo, T., Kitagaki, R., Teramoto, A., Suda, Y., & Maruyama, I. (2024). Plugging effect of fine pore water in OPC and LC3 paste during accelerated carbonation monitored via single-sided nuclear magnetic resonance spectroscopy. Cement and Concrete Research, 186(September), 107688. https://doi.org/10.1016/j.cemconres.2024.107688
L. Cheng, H. Takahashi, I. Maruyama, Application of total carbon analysis for carbon dioxide fixation in cementitious materials, Case Stud. Constr. Mater. 21 (2024) e03880. https://doi.org/10.1016/j.cscm.2024.e03880.
N. Saeki, R. Kurihara, I. Maruyama, Applicability of XRD/Rietveld analysis with an external standard method for the quantification of mineral components in carbonated hardened cement paste, J. Adv. Concr. Technol. 22 (2024) 602–619. https://doi.org/10.3151/jact.22.602.
Saeki, N., Cheng, L., Kurihara, R., Ohkubo, T., Teramoto, A., Suda, Y., Kitagaki, R., & Maruyama, I. (2024). Natural carbonation process in cement paste particles in different relative humidities. Cement and Concrete Composites, 146(December 2023), 105400. https://doi.org/10.1016/j.cemconcomp.2023.105400
H. Takahashi, I. Maruyama, T. Ohkubo, R. Kitagaki, Y. Suda, A. Teramoto, K. Haga, T. Nagase, Error factors in quantifying Inorganic carbonate CO2 in concrete materials, J. Adv. Concr. Technol. 21 (2023) 789–802. https://doi.org/10.3151/jact.21.789.
H. Takahashi, I. Maruyama, Quantification of CO2 in cement pastes with different degrees of carbonation, Journal of Advanced Concrete Technology 22 (2024) 706–715. https://doi.org/10.3151/jact.22.706.
H. Takahashi, I. Maruyama, Quantification of CO2 in cement pastes with different degrees of carbonation, Journal of Advanced Concrete Technology 22 (2024) 706–715. https://doi.org/10.3151/jact.22.706.
Uno, T., Saeki, N., Maruyama, I., Suda, Y., Teramoto, A., Kitagaki, R., & Ohkubo, T. (2024). Understanding Carbonation Phenomenon of C-S-H through Layer Structure Changes and Water Exchange. https://doi.org/10.1021/acs.jpcc.4c01714
Related Homepage Links
https://green-innovation.nedo.go.jp/project/development-manufacturing-concrete-using-co2/scheme/
https://www.meti.go.jp/shingikai/sankoshin/green_innovation/energy_structure/pdf/011_09_00.pdf
https://www.t.u-tokyo.ac.jp/press/pr2024-06-25-001
