Micropore size analysis in hydrated cement paste by NMR

We present a time evolution of 1H spin-lattice relaxation rates in the laboratory (1/T1) and in the rotating frame (1/T1ρ) of a synthetic cement paste. The typical results found for both rates allows us to follow the main hydration stages of the cement paste and the refinement of its microporosity. In particular the texturation of the porosity and the structuration of the surface of the material is evidenced.