There are different brands of concrete. The proportions of concrete before preparing the mixture should definitely be studied. In order to get a quality solution, you need to follow the technology of its mixing, as well as monitor the composition.
Comparison of different brands of concrete
The composition of concrete will depend on what purpose the future design should have. So, for the preparation of M100 solution, a smaller amount of cement is required than in the manufacture of M450. This is due to the high cost of raw materials, when compared with sand and gravel. M100 should not contain the same amount of cement as in M450 concrete. This is due to the fact that these compounds are used for different purposes. For example, the M450 is able to undergo much more impressive loads compared to the M100.
Proportions for different grades of concrete
As a rule, salable mortar is produced using cement M400 and M500. In addition, the mixture contains crushed stone, sand, and in some cases all kinds of additives, including antifreeze. In order to prepare concrete of different grades, it is necessary to take different ratios of ingredients. If the work requires the use of concrete with the presence of cement grade M400 in its composition, then the ratio of cement, sand and crushed stone in the following proportions will be used: 1: 4.6: 7. At the same time, it will be possible to obtain concrete of the M100 brand.
In order to prepare a mixture of M150 using cement of the same brand, it is necessary to use materials in the same sequence with the following proportions: 1: 3.5: 5.7. To prepare the M200 solution, you need to take the ingredients in a ratio of 1: 2.8: 4.8. To obtain a specific brand of concrete, the proportions of concrete must be well studied before work. So, in order to prepare a solution of the M250 brand, it will be necessary to combine the components using a proportion in which the first ingredient should be used in the amount of one part, the second in the amount of 2.1, and the third - 3.9. Concrete (grade 300) will be obtained with a ratio of 1: 1.9: 3.7. To prepare the composition of the brand M200, you need to mix the ingredients in a ratio of 1: 2.8: 4.8. In order to get a mixture of brand M250, you need to connect the components using the proportion in which there should be one part of the first component, 2.1 parts of the second and 3.9 - of the third. A product of the M300 brand will be obtained using a ratio of 1: 1.9: 3.7.
To prepare a specific brand of concrete, the proportions of concrete can be used those that are presented in the article. In order to get a solution that will have the M400 brand, you need to connect the components in a ratio of 1: 1.2: 2. Product brand M450 is formed if you use the main components in a ratio of 1: 1.1: 2.5.
Proportions for concrete using cement M500
Cement M500 can be used for mixing mortar , then the same components are combined in a different proportion. So, for the preparation of M100 it will be necessary to mix cement, aggregate in the form of sand, as well as specially prepared crushed stone in a ratio of 1: 5.8: 8.1. To obtain the M150 solution during the work, you need to add the ingredients in a ratio of 1: 4.5: 6.6 to the mixer. If you use a ratio of 1: 3.5: 5.6 when mixing, you get M200. Concrete M250 can be obtained if you add all the components in a ratio that looks like this - 1: 2.6: 4.5.
To obtain a proportion of concrete during construction work, a concrete grade must be observed. This will allow you to get a mixture with the desired quality characteristics. The concrete grade M300 will turn out if you use a ratio of 1: 2.4: 4.3. M400 is obtained if you apply the ratio of 1: 1.6: 3.2. The M450 solution will be able to be shut when the 1: 1.4: 2.9 scheme is used.
Mixture characteristics
Builders know which cement to use when making this or that kind of concrete. This is determined by the types of work that is supposed to be done. The higher the quality of cement, the smaller its amount will be necessary to obtain a solution. The brand determines the compressive strength of the material, but this value can only be established after the design has gained stability, and this usually happens after 28 days. In construction, the most common mixture, which is determined by brands from 50 to 550.
Application area
Concrete brands and their characteristics presented in the article will allow you to make the right choice for a high-quality design. The technology for preparing the solution and its proportions are determined by the type of work, as well as the purpose of the object. M100, for example, found its application in pouring the foundation of the strip type and monolithic plates. Such a mixture should be laid in a thickness ranging from 5 to 10 cm. Quite often, such a composition is used in road construction, in addition, it is indispensable in the preparation of laying the main coating. If we compare this mixture with the M150, then we can say that the latter option is great for screeding, pouring the sidewalk, as well as making a tape base.
Concrete table quite often helps beginners. M200 solution can be used not only in private, but also in industrial construction. Most often it is used in the construction of low-rise buildings, pouring reinforced concrete blocks, as well as road slabs. Despite the fact that the M250 has more impressive strength, it is not so in demand in private construction. It is usually used when pouring flights of stairs, blind areas, foundations, strong fences, as well as in monolithic foundation construction.
Concrete (grade 300) is most common in the construction of roads, pavement or floors, as well as the filling of sidewalks. The same should be said about brand 350. Such mixtures can be called universal. M400 can be used to equip all types of structures for any purpose. Structures cast using this concrete imply special operating conditions. It is worth mentioning the M500, it is indispensable in the construction of dams, dams and structures, which should be of high strength.
About cement quality
In construction, the construction of foundations most often uses concrete M200-M500. It is worth remembering that not only the correct mixing and application of the correct proportions are the key to obtaining a solution of a sufficiently high quality. If you use cement that has been stored for a long time or incorrectly, with high humidity, the quality of the mixture will not be the best, even if the grade of cement is high. This indicates that the raw materials must be stored in a dry place, and it is recommended to use them in work as soon as possible after acquisition.
Solution price
If you decide to use concrete in construction, the brand, the price and quality of which will be different, be sure to study the main characteristics of this building material. Let's talk a little about the financial part of the issue. M100 brand concrete will cost 2100 rubles. Whereas the price of M150 slightly exceeds this figure - 2250 rubles. For concrete M300 will have to pay 2800 rubles.
Finally
It is worth noting that the brand of concrete is a rather important component in the process of carrying out construction or repair work. It is on this characteristic that the strength of the structure after hardening, the life of the monolith, the water resistance and qualities that determine resistance to low temperatures will depend. The brand defines an indicator that characterizes the compressive strength. This characteristic is determined in kilograms.
If you want to build a structure with more impressive quality characteristics, you need to use concrete with higher compressive strength. However, the same composition can be obtained by using different grades of cement. Do not assume that using more expensive material will not work. On the contrary, if higher-quality cement is used, then when mixing the mortar, it will be required much less than that which has not so high quality and is not able to provide the desired viscosity. After you have studied the brands of concrete and their characteristics, you can begin to work.