NMR and nuclear spin relaxation of cement and concrete materials

Recent highlights of NMR works are reviewed for various cement-based materials. The emphasis is on nuclear magnetic relaxation methods at variable magnetic fields for continuous characterization of the evolving microstructure of various cementitious materials. Also, the recent applications of 2-dimensional T₁–T₂ and T₂–store–T₂ correlation experiments for characterization of water exchange in connected micropores of cement pastes are reported.