The proportions of the preparation of concrete brands m100,

When performing various construction works, it is often necessary to make concrete mortar directly on the construction site. If you need equipment, it is easy to do this, however, you need to take into account that its quality depends on compliance with the proportions of the components, as well as a number of other factors. Therefore, we will further consider this process in detail, and also give proportions for the preparation of concrete of various kinds.

Brand

The main parameter of concrete is strength, which is displayed in its mark. The brand number indicates the ultimate load in kilograms per square centimeter of area that a material can withstand. For example, concrete M200 can withstand a load of 200 kg per square centimeter.

Thus, before proceeding to the preparation of the solution, it is necessary to determine its brand. To do this, calculate the load on the concrete structure. True, builders rarely exactly calculate the required mark, since it is possible to use a material with a margin of safety.

The only thing is that this stock should be reasonable, since the higher the grade, the higher the price of the material. Therefore, excessive strength leads to an unreasonable increase in the cost of construction.

Proportions

M100

This brand is widely used in the performance of repair, construction and restoration work.

In particular, the material is used for the following purposes:

• To perform the substrate base;
• In the manufacture of rough floors, if you plan to concreting on the ground;
• At arrangement of parking and various platforms;
• In the manufacture of reinforced concrete structures that will not be subjected to excessive loads.

Table of proportions for the preparation of concrete M100 per 1m3:

For fine concrete, i.e. without rubble, the proportions are as follows:

M200

For the preparation of concrete solution brand M200 on 1 m3 mix the components in the following proportions:

This brand is the most popular, since its scope is very extensive.

Most often the material is used for the following purposes:

• When building foundations;
• For the construction of stairs;
• When performing floor screed and other designs.

Note! Due to its excellent technical characteristics, this brand is the most profitable in terms of price / quality ratio.

M300

Proportions при приготовлении бетона M300 следующие:

Mark M300 is even more durable, so it is used in the construction of load-bearing structures, which are expected to a large load. In particular, they often fill the foundation of heavy buildings, make floors, etc.

Note! To prepare the solution, it is necessary to use fresh cement, as its quality deteriorates over time. So for the year he can lose up to 40 percent of its strength.

Proportions керамзитобетона

Separately, it should be said about such material as expanded clay. It differs from ordinary concrete in that expanded clay is added to it as a large filler. These are lightweight and porous granules, which at the same time have good strength.

The use of expanded clay in the composition of the solution allows you to make the material lighter and "warm." Due to the strength of expanded clay, expanded clay can be used in the construction of walls and even when building the foundations of small light buildings, for example, garages or outbuildings. In addition, it has found wide application in warming flat roofs.

The proportions of the preparation of expanded clay are as follows:

These proportions will allow you to create keramzit concrete M200.

Concrete preparation

For the preparation of concrete solution, you will definitely need a concrete mixer, as it is very difficult to mix the concrete by hand, especially if the composition contains crushed stone or gravel. Therefore, to obtain high-quality homogeneous mixture is unlikely to succeed.

It should also be noted that the execution of the solution requires compliance with a specific sequence:

• First of all, it is necessary to pour dry components - sand and cement into the concrete mixer with your own hands.
• After the components are mixed into a homogeneous mixture, it should be gradually poured into water, moreover, it is necessary to pay attention that it is clean.. Experts recommend preparing a solution based on drinking water.
• After obtaining a homogeneous mass, a filler, cleared of clay or other impurities, is poured into the concrete mixer..

Note! To improve the quality of the material, a plasticizer can be added, as well as other additives. They should be introduced into the composition at the stage of water filling, in accordance with the instructions from the manufacturer.

At this process the preparation of the solution is completed. It must be said that expanded clay concrete is prepared in the same sequence.

Conclusion

If you comply with the above proportions and concrete preparation technology, you can get high-quality material at home. The only thing you need to pay attention to the quality of the components, as even dirty water or sand with an admixture can significantly reduce the strength and other properties of the composition.

From the video in this article, you can get more information on this topic.