And as it was before?

Modern foreign and domestic manufacturers («Sebryakov -cement», «Euro -cement» and others.) offer many brands and cement classes with the addition of plasticizers that improve the operational characteristics of the mixture. And as it was before? The word «cement» itself has Latin origin and means «broken stone». The first of the first the unique properties of natural minerals were noticed by the Romans. They noticed that if the volcanic ash is added to the lime, after kneading with water and hardening the mixture, an extremely solid substance resembles a stone. They began to use it in the construction of residential and household structures, roads, all known water pipelines.