Relaxation processes during activation of cement mixing water

The analysis of relaxation processes in water activated thermally or ultraviolet irradiation is carried out. Activation of mixing water leads to earlier hardening of the cement. In this case, activated water loses its properties with a relaxation time that is equal to the activity time of melt water, which is explained by the general reasons for the origin of the increased reaction properties of activated water and melt water. These properties are due to the fact that upon activation, the content of free water molecules increases. In the usual state, part of the water molecules enters the voids of fractal-clathrate structures. During thermal or radiation activation processes characterized by certain relaxation times, these structures are destroyed and free water molecules are released. But after the cessation of activation, relaxation processes take place to restore thermodynamically equilibrium fractal-clathrate structures, and part of the free water is again captured by these structures. Therefore, the reactivity of water after the cessation of activation decreases.