To answer the initial question: Is there a future for Ca NMR in cement research? Yes, the above stated clearly shows that Ca NMR could be used in further elucidating the atomic-level structure of C-S-H as well as contribute to the understanding of its nucleation and growth and the general understanding of cement hydration. However, it is no easy task and it would require a combination of multiple characterization methods coupled with atomistic simulations that enable an effective interpretation and validation of experimental results. Due to the Ca nucleus characteristics, it is expected that promising results can only be expected from Ca enriched samples and high magnetic fields.