Calcium hydroxide or slaked lime and the specific products derived from it are of great benefit, it is reliable and especially effective for applications such as accelerating the kinetics of reactions, increasing the efficiency of absorption and guaranteeing a high degree of capture of gaseous pollutants. Moreover, a correct combination of the above-mentioned parameters of calcium hydroxide means that highly reactive products can be offered. Therefore, among the beneficial effects that the use of calcium hydroxide brings is that of pH regulation, as well as in encapsulating metals and disinfecting, without forgetting that it also reacts with silica, creating pozzolana structures.