Each master has his own secrets to make his work better or get a higher quality product. One of these options is the addition of sugar to the cement when preparing the concrete mixture. This is done with one purpose - to provide concrete after it dries, increased strength and wear resistance in compression and bending.
The mechanism of action is simple. The mixture containing sugar does not freeze as quickly as usual. The term increases significantly. This option is suitable for preparing a solution in absolutely all cases. Even when making paving slabs at home. Today this is a fairly common phenomenon, as the special molds used for pouring are sold almost everywhere and are inexpensive.
As for the proportions, fifty kilograms of cement requires only 250 grams of sugar. The tile is obtained not only of good quality, but also has excellent external characteristics.
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Professionals sometimes use not only granulated sugar, but also ordinary kitchen salt. This component is added if the concrete solution is made in winter at a low air temperature. The salt prevents the finished solution from freezing before it is needed. During frost, two to four percent of salt by volume is added to the solution.
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However, there is one drawback here. Salt should not be added if the fittings are made of metal, as they will rust. Provided that the reinforcing material is made of fiberglass, this approach can be called ideal.
Continuing the topic, read,
Why do some people put salt in coffee: a gourmet life hack.
A source: https://novate.ru/blogs/180920/56072/