How is the cement-sand mixture prepared?

Nobody will argue with the fact that the modern construction industry can not do without cement. Without it, it will not be possible to build a single building, it will not work to build a single road. Factories for the production of this remarkable material produce more and more products every year, which immediately diverges.

Every builder knows that to build a house we need a cement-sand mixture, which we are going to talk about today. Of course, this topic is not very simple, since before starting work it is necessary to acquire at least a basic knowledge of existing cement brands and the features of each of them.

Given that the GOST for each of them provides for different strength indicators, serial numbers are assigned to all types of cement. Most often used brands 200, 300, as well as all types of 400-600. The larger the number, the more suitable the concrete version for obtaining foundation concrete. Naturally, the cement-sand mixture can be obtained from "junior" brands.

The most common and widely used portland cement. Unfortunately, there are often situations where he can not meet all your requirements. That is why, in some cases, a sulfate-resistant, hydrophobic or fast-curing type is chosen. However, there are many more specialized varieties, which are often of interest only to professionals.

Types of solutions

1. It is rare to use a greasy cement-sand mixture, In which there is a lot of a binder component. It quickly freezes, but is not too durable because of the tendency to cracking.
2. The most commonly used is a conventional cement slurry, in which the proportions of all components are ideal. It is rather slow to freeze, but its service life is beyond praise.
3. Due to non-compliance with the manufacturing technology, beginners often get a so-called skinny solution, which has almost no binding components. Such a mixture does not solidify in principle.

Having dealt with the basic concepts, we will consider some special types of cement mortars and learn about the ways of their preparation.

Mixing methods

How is the cement-sand mixture prepared? If you are going to build something more serious than a hut, you should know the answer to this question. In many ways the preparation process is similar to the technology of obtaining a lime solution. It is necessary to observe a certain proportion: take cement and sand in a ratio of 1: 3, add water, after which the mixture is thoroughly mixed. Constantly control the consistency: if the mass is watery, then add cement, if "dry", then add water and filler.

However, for grouting cracks and seams by builders, a cement-sand mixture is practically not used. GOST for construction requires the use of cement-lime mortar.

Cement-lime mixture

The technology of its production is not anything special, but instead of water, a "thin" solution of lime is used. Such a composition is not only ideal as a grout for seams, but also can be successfully used as a plaster mix for walls and even a ceiling.

In conclusion, we can say that there is no construction site, no matter where the cement-sand mixture is used. Its price varies greatly depending on the components used and the cement company, so everything is strictly individual.