What determines the consumption of cement per 1 cube of the solution

Without cement, no construction is possible. Properly composed cement-sand mixture is a guarantee that the object will be strong and last for a long time. There are no trifles in the preparation and preparation of cement mortar, even minor details are important here.

Special features

In modern construction most often used cement mixture, which is composed in certain proportions with sand.

There are several options for cement mixtures that are in demand, namely:

  • to make the screed takes the mixture in the ratio of cement to water 1: 3, additives and fiber are also often added;
  • For masonry, a solution of 1: 4 is used, the cement of the grade is not lower than M200;
  • for plaster, a mixture of 1: 1: 5.5: 0.4 is usually used (cement, slaked lime, sand, clay) is a solution of M50.

The concentration of cement in different mixtures per 1 cube of solution can vary considerably. This fact depends on the types of work and the intensity of mechanical loads experienced by different fragments of the structure. Novice builders often do not give due importance to the proportions of materials in cement mixtures, thinking that this question is insignificant. This is a profound mistake, because correctly composed fractions per m³ is the main guarantee that the object will be strong and durable. It is recommended to seriously consider the issues of the composition of cement mortar.

Consumption rate

To correctly calculate the concentration of the cement mixture, you need to use the norms and standards prescribed in special tables. They can be found in any reference book on construction topics.

To work with cement mortar will need the following tools:

  • concrete mixer;
  • device for weighing bulk substance;
  • buckets in which the mixture is hung;
  • calculator;
  • a table in which the density coefficients of sand, gravel, cement, and lime are indicated for 1m².

Typically, the composition of the solution include a single binder. Such a solution is called simple.But there are also mixed solutions to which several plasticizers can be added. If the solution comes only with the addition of sand, then it turns out to be quite dense and heavy in weight. It ranges from 1680 to 2100 kg per cubic meter of volume, in lighter solutions, a similar indicator is noticeably less - up to 1650 kg per cubic meter.

What does it depend on?

The mechanical strength of cement mortar can be such gradations as 2, 4, 10 and 25. Guided by the tables and standards, you can reduce the consumption of such a valuable material as cement without compromising the strength of the structure. Typically, cement 400 is used for construction work, for example, for screeding. The most common mortars are M25 and M50. To prepare M25, a ratio of sand to cement 5: 1 is required. To make substance M50, a proportion of 4: 1 is required. This composition dries for three days at a layer thickness of 1 cm. Sometimes arbolite or PVA glue is added, then the coating is obtained stronger.

Attention should be paid to the consumption of cement, when you need to prepare one cube of concrete.

The important indicators that determine the quality of the solution include:

  • density;
  • viscosity;
  • setting time.

In order for the mixture to be of high quality, it must be well stirred. It is necessary to respect the proportions of the flow of sand and cement. In the M600 solution, the presence of cement in the ratio of 1: 3 is necessary. If M400 cement is present in the work, the ratio is 1: 2.

It should be borne in mind that when calculating the amount of cement to obtain the required volume should be multiplied by a factor of 1.35, because there is an addition of water and various additives. For one cubic meter of solution will need about 68 bags of cement weighing 50 kg. The most popular brands of cement for the construction of the foundation - is M200, M250 and M300. The foundation requires a solution in which the optimum compression ratio will be present.

If the cement grade is M100, then the following density will be present per cube:

  • М100 –175 kg / m³;
  • М150 - 205 kg / m³;
  • M200 - 245 kg / m³;
  • M250 - 310 kg / m³.

For plastering work per square meter with a layer thickness of 1 cm will require about 2 mm of cement. With such a layer thickness, the material hardens well, without deforming or cracking.

To put cinder blocks you need the following relationships:

  • М150 - 220 kg / m³;
  • M200 - 180 kg / m³;
  • M300 - 125 kg / m³;
  • M400 - 95 kg / m³.

When finishing the facade, special pigments and semi-sketches are often used, as well as salt, a solution of soap, which improve the quality of materials. When preparing the mixture, the dry substance is thoroughly stirred first, only then the liquid is added. The mixture is usually prepared in small quantities, because it has the ability to quickly grab. To make the mark M150 and M200, the proportions of cement and sand 1: 4 are needed. If you need a solution of the mark M400, then this composition has a ratio of 1: 3.

Concrete is most in demand in construction. Its main components are crushed stone, water, sand, cement. It is important to initially represent for what purposes the concrete will be used. Its consumption is on average about 245–325 kg. It all depends on the brand of cement, in what proportion and proportions the mixture is prepared.

How to calculate?

Cement of higher grades is used, as a rule, in industry to create durable structures. In household and civil construction, their use is rare.

Cement grade 500 is often used to create load-bearing structures such as piles, floors, and fixing beams. Such cement shows itself well at low temperatures, has high anti-corrosion performance. It is also often used in the construction of various ceilings, beams and slabs. The characteristics of this cement can also be attributed to good frost resistance and water resistance, as well as it has excellent anti-corrosion ability and therefore is often used in emergency operations.

It is recommended to follow the recommendations regarding proportions. The presence of cement directly affects the plasticity of concrete and its other indicators. The following ratios are most commonly used: cement (1 kg), sand (3 kg) and crushed stone (5 kg). Sometimes they also add some glass to the composition, which makes it even stronger. With this ratio, the concrete mix will be very durable. Any deviations from the prescribed proportions lead to poor composition. The grade used to obtain this material should be on average twice the grade of the concrete produced.

For convenience, bags of cement 50 kg each are usually used. As an example, four bags of cement should be used to make M200 concrete.For masonry, a lime based mortar is often used, which is distinguished by good plasticity.

If it is required to do facade plastering, then such mixtures are optimal for such work. For bearing walls, higher grade cement is used, this will provide additional strength for the object. Binder material M500 is used in a ratio of 1: 4, if the brand of cement is M400, then the ratio is 1: 3. When the mixture is made by hand, cement is usually used, whose brand is twice the size of the product. For example, if you want to get a mixture of brand M100, then the cement must have brand M200.

Calculation of the area of ​​the walls

In one cubic meter, there are 482 bricks 242x120x64 mm in size. Brick consumption for masonry depends on the thickness of the walls. For Russian realities, external walls composed of two bricks are optimally suited. The single brick has dimensions of 252x120x65 mm, one-and-a-half - 252x120x87 mm, double - 252x120x138 mm. Based on these indicators, it is easy to calculate how much brick per 1 m² will be required.

If we talk about the consumption of cement for laying, then this indicator depends largely on the thickness of the seam.This parameter is usually 15 mm. It should also be borne in mind that much more mortar is needed for silicate bricks than for facing bricks. Most of the solution goes to the hollow brick, in this case, the cement-sand mixture is made in a dry form of 1: 4. A little water is added to a small container and poured in a cement-sand substance, stirring it to a semi-liquid state.

On the laying of hollow brick consumes the most solution. Such a laying will require a seam of at least 0.2 cubic meters of mortar, if we take into account that the brick is 12 cm wide. If the brick is laid in one brick, then the mortar will require 0.23 m³, 0.16 m³ is required for a single stone. The amount of liquid solution to be consumed should also be considered.

Tips and tricks

In the construction of private houses, the so-called heavy concrete of grade 400 is most often used. When calculating the material consumption, it is recommended to take this fact into account.

Sand plays a very important role in the preparation of the cement mixture. This component gives the substance plasticity. For plastering work, choose artificial sand with a low clay content.If the layers of plaster are too thick, you should definitely install the metal mesh on the wall, this will guarantee that the plaster will not crack when dry.

      Sometimes clay sand is added to the sand-cement mixture. This component is needed in cases where the need for spilling in the interfloor ceilings. Sometimes the clay is just poured into the grooves between the lags and shed cement milk. Such a composition dries in time in 2-3 days and is a good heat insulator.

      About what depends on the consumption of cement per 1 cu. solution, see the next video.

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      Information provided for reference purposes. For construction issues, always consult a specialist.

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