Masonry mixes: what are there, how to choose according to brands and quality? Today, masonry mixes for bricks are widespread - this is one of the types of building material that is often used for masonry, as well as for finishing work on the walls of the house when using different elements.
To obtain durable and high-quality masonry, one should take into account the characteristics and features of the compositions of various types of mixtures and follow the tips for use and preparation technology.
Today we will talk about what exactly the masonry mixture should be for facing bricks.
High quality masonry mixes are specific complexes that, when mixed with water, form a ready-to-use mix. It is a durable, flexible mortar that can be used for construction and finishing work.
Most often, the composition and components of dry masonry mixes differ little, and are presented in the form:
Attention! If you want to achieve a brick masonry mixture that will perfectly match the shades of the masonry, you can use pigments or natural dyes to obtain the desired color.
In order to obtain the required amount of solution, which is enough and there will be no excess, the calculation should be applied flow rate of a step-by-step sample. To do this, we need data on the area of masonry (taking into account that the area of window and door openings should not be entered here), and then calculate the amount of solution using the formula 1/3 m 3 mixture for 1 m 3 area .
For example, you need to build a structure with a height of one floor, where the length of the walls is 15 m and the height of the ceiling is 3.4 m. Let's take into account the presence of windows, the dimensions of which are 1.
8 * 1.2 m and two openings for doors 2.1 * 1.3m. In this case, when calculating masonry with a thickness of 25 cm inside and 64 outside, it will look like this:
4m * 15 - 7 windows * 1.2m * 1.8m - 2 doors * 1.3m * 2.1m) * 0.
Most often, the solution is kneaded in the following proportions:
1 measure of cement: 3 measures of sifted sand: 1/2 water.
In order to prepare solutions from the most popular brands, it is recommended to use the following proportions of sieved sand to cement:
For example, to create a solution of grade M25 you need to mix 2 tons of sifted sand, 250 liters of water and 260 kg of M400 grade cement. It should be borne in mind that the ratio may be slightly changed depending on a number of external factors, which include the place of work, as well as climatic and soil conditions.
Important: For finishing the walls with facing clinker bricks, compounds with a high viscosity should be used, and if necessary, this parameter can be increased by adding ground slag.
The table below shows the standard rates of material consumption, which differ from each other due to the thickness of the brickwork:
|Masonry thickness, m||Brick consumption (single), kg||Brick consumption (one and a half), kg||Brick consumption (double), kg|
|0 , 38||127||106||91|
The main components that are part of any mortar for masonry are dry mix and water. But the whole secret in creating a truly durable mixture lies in strict observance of all proportions of materials and the sequence of addition.
Dry masonry mixes are different in scope, therefore the compositions are different, despite the same basis. They can be roughly divided into two main categories:
Used for laying stoves, chimneys, swimming pools.
Typically white mixes for masonry used for facing or restoration of seams of structures that have been used for many years in a row. These mixtures include not only standard high-quality cement, sand and water, but also plasticizers, as well as milk of lime.
In addition to aesthetic properties, which are one of the main differences, the mortar has excellent elasticity, strength and practicality.
In addition, it is the white solutions that have the ability to retain water (97%), which is very important for facing - the brick finish will last much longer and will not lose its properties, characteristics and qualities.
This type of masonry mortar is the most popular in all types of construction and finishing works and is often used when working with silicate or ceramic bricks.
Due to their high strength and stiffness, cement mortars are in great demand in the construction of private houses and the construction of high-rise buildings.
The quality of these mixtures largely depends on thorough grinding and purification of clay from impurities, which is added to this solution. Such compositions are used for the construction of private houses and low structures.
Due to their high plasticity and adhesion, these types of mortars are often used for laying silicate and ceramic bricks.
This type of solution is rarely used, since it has a low level of strength, increased fragility and a low level of thermal conductivity. It is used only for the construction of low-rise buildings and low structures.
Often, wall decoration with bricks for facing involves the use of colored masonry mixtures. These compositions have some advantages over their analogues, since the composition of such mixtures includes organic components of fine grain in the form of lime or cement, as well as pigmented fillers and water.
A properly prepared mixture is filled with a dye of mineral origin, based on iron oxide.
Usually, the total volume of dyes in such mixtures does not exceed 8% of the total volume of the entire solution.
At the same time, the mixture, made with high quality, contains such elements as:
Note that the use of pigmented mixes gives the masonry an excellent combination of joint shade and brick color. When making such a solution on your own, it should be borne in mind that for light shades, only white pigment should be added to the finished mixture, and to obtain a darker shade, gray shades should be added.
Today the following masonry mixtures are considered the most famous compositions with pigments on the builders' market:
The main task of any mortar for masonry is the connecting function between the elements, of which the structure is being erected, therefore, the mixture should be chosen taking into account the following principles:
Important: You can determine the hardening of the solution by the type of binder , which is part of the mixture (it can be hydraulic and air). If there is only one such component in the composition, then this is a simple mixture, which can be cement or lime.
But when there are several binders in the mixture, this means that the masonry mixture is complex, has good plasticity and is able to withstand the negative influences of the environment, due to which cracking often occurs.
The opinion of specialists in the field of construction business when erecting strong walls and performing cladding that will meet all the parameters, it is very important to take care of purchasing a complete set of tools in advance, such as:
Please note, that when erecting or finishing works of tall buildings, you should prepare in advance and find scaffolding or other elements that will make it possible to quickly and efficiently complete all work on height.
After you prepare all the necessary arsenal with the tool, you should start to dilute the masonry mortar .
.. To do this, read the manufacturer's instructions and dilute the mixture in the indicated proportions, and then mix thoroughly.
Everything presented is consistently correct, try to stick to it to get good results :
Such methods of applying masonry mortar for bricks are very effective, we will describe TOP-3:
We apply the masonry mixture to the end of the element, after which it is laid and pressed, moving the hand back and forth.
Important! It should be noted that the laying of each 3-4 rows in a row should be completed by filling the space of the seams - this will give beautiful seams, and also make them more stable in temperature changes. In addition, this maneuver is a kind of prevention of destruction due to moisture. This procedure can be neglected if you will definitely be finishing the walls with plaster.
The quality of the paving should be constantly checked, and every m 2 surface should be checked for position.
It is impossible to shift the laid elements after hardening!
To buy a masonry mortar for bricks, you first need to decide on a variety of indicators , namely the manufacturer, composition, purpose, region of sale and other quality. At the moment, a 50 kg bag has an average price of 200 to 400 rubles.
( 1 grade, average 5 of 5 )
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