A new paper has been published in Cement and Concrete Composites.
This study investigates how carbonation progresses and how internal pore structures evolve under different carbonation conditions. Using XRD, TG, selective dissolution for silica-gel quantification, water vapor sorption isotherms, and ¹H NMR relaxometry, we evaluated both chemical and physical changes in detail.

Understanding nanopore evolution and controlling water are essential for promoting carbonation. This paper provides fundamental data that support these discussions. We also report a relationship between the polymorph of calcium carbonate and the microstructure of C–S–H — a small but meaningful step toward understanding carbonation behavior in hardened cement paste.

N.K. Bui, R. Kurihara, T. Noguchi, I. Maruyama, Microstructural evolution of cement pastes under long-term carbonation: new insights in nanopores from water vapor sorption and 1H-NMR relaxometry, Cem. Concr. Compos. 166 (2025) 106392. https://doi.org/10.1016/j.cemconcomp.2025.106392.