For a small independent production with no belt and the drying chamber, it is inappropriate to use expensive and high-quality cement. They, of course, produce finished products faster and the tiles will be stronger. But if there is no time limit, the normal period of exposure in the form of concrete - two days, although it is possible and more, especially at low temperatures. As a filler for concrete, we recommend the use of fine gravel, granite screenings, clayless river sand, marble dust, waste rock production (diameter of 2-3 cm) - in general, any solid inert material that does not contain the free form of acid, lime, dyes. Without additives Concrete - plasticizers - too difficult to manage.
First, they increase the mobility of the concrete mix. With a minimum of equipment is very important - you can be sure that the concrete will take all the necessary volume to fill the forms. Second, modern additives accelerate the process of concrete hardening. Third, some additives can work with concrete, even at a temperature of -5 degrees. The plasticizer is introduced into the mixture in a small amount - from 0.5 to 1% to cement, so it increases the cost of production slightly, although the facilities in gaining enough. If you want to make a colored tile, then in addition to all the above ingredients in the concrete to add pigments. Better to buy a special pigments to the concrete (although pigments for water-based paints will also work, although they are somewhat more expensive). Pigments are added in amounts of from 0.5 to 10% of the cement in the preparation of concrete. Increasing percentage of pigment, you increase the color saturation, although the proportion of pigment from 3-5% of finished products will be dirty. Keep in mind that concrete is not without compromising its properties to paint in bright and light colors. Undesirable, especially beginner paint the concrete in the red, white and green. Directly on the process of casting will be discussed in the next issue. Want to know everything about the production of tiles is faster? Please contact "LIT", where you can enjoy a full range of forms and expert advice.

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