On the other hand, the viscous contribution is described by the loss modulus (G ′′ ), and this factor is determined by the energy dissipated during the measurements . In all experiments, G ′′ was found to be more than one order of magnitude smaller than G ′ over the entire duration of the measurements, resulting in a loss factor that was below 1 (Supporting Information Figures ). The evolution of the storage modulus was used as an indicator of the structural build-up of the pastes due to hydrate precipitation during the hydration process.