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I am currently making paving slabs (Krakowski clover). In this video I show the entire work process. The composition of the mixture for the tile, additives to improve the quality of the tile, plasticizer, hardening accelerator, etc. The process of molding and removing the tile from the molds. Experiments on the advice to the previous video. I tried to answer all your questions about the forms, about the density of concrete, about the cost of making tiles. The composition of the mixture: 1.5 buckets of cement, 2 buckets of sand, 4 buckets of crushed stone, 1.5 buckets of water. Plasticizer C3 is diluted in water, 1.5 kg per 200 liter barrel. Hardening accelerator, also in water 1.5 kg per 200 liter barrel.