The function of the cement-concrete screed is the smoothing of a brick, stone, concrete base. To perform work, a solution is required, for the preparation of which it is necessary to use the sand and cement of the brand 300, with a ratio of 1: 3. In the finished dry mixture, the desired amount, it is necessary to pour the right amount of water, and bring to the state of dense dough. Today, split systems are very popular. If you want to buy reliable split systems, we advise you to visit the Ronax Group website .