There are no trifles in construction. Your further calm depends on the quality of the solution used for brickwork. Only with high -quality solution made using technology, you will not get acquainted with old friends of negligent builders: bevel and shrinkage. The solution should be homogeneous in structure, and have sufficient plasticity for uniform distribution by brick.
A solution for brickwork begins to harden as soon as it is prepared. Accordingly, you should not pull with its use. The speed with which the solution turns into a stone depends on its components. But in any case, do not delay the process. The time frame, the maximum, is limited by several hours.
If we consider the standard three -component solution, then the ingredients are limited by sand, cement, water. Order sand delivery in the suburbs. Sand for such a solution is needed small, with a diameter of granules up to 2 mm. Cement is taken by brand 400 or 500. The strength of the resulting solution depends on the proportion of the sand in the mixture. Select, often used: 5 to 1 (m25), 4 to 1 (M50) and 3 to 1 (M75). Where the unit indicates a portion of cement for several portions of sand.
Of the known proportions, the required ingredients are calculated. The solution is usually kneaded in a concrete mixer. Pouring, first, a certain amount of water, then the mixture, then water again. As already mentioned, you need to use the solution within a few hours. But even during operation it should be mixed in order to maintain uniformity.
Another of the common ingredients added to the solution is lime. A solution with the addition of lime is two proportions of cement, hydrate lime, sand: 1: 1: 4 (m25) and 1: 0.5: 4.5 (M50). These solutions give an additional head start starting headset. Cement is taken by brand 400. When kneading in a concrete mixer, two -thirds of the water are first poured, then cement, and only after mixing these ingredients, the remaining water and sand are added.
Now various plasticizers of artificial origin are widely used. These additives are purchased in specialized stores. And add according to the supplied instructions. For the most lazy builders (or appreciating their time), you can buy a ready -made dry mixture for the solution.
