Concrete grades, proportions of concrete. Application of concrete
There are different grades of concrete.The proportion of concrete before preparing the mixture is definitely worth exploring. In order to obtain a quality solution, it is necessary to observe the technology of its quenching, and also to monitor the composition.
Comparison of concrete of different grades
The composition of the concrete will depend on whichThe design must have a future design. Thus, a smaller amount of cement is required for the M100 solution preparation than for the M450. This is due to the high cost of raw materials, if you compare it with sand and gravel. The M100 should not have the same amount of cement as in the M450 concrete. Due to the fact that these compounds are used for different purposes. For example, the M450 is capable of experiencing much more impressive loads compared to the M100.
Proportions for different brands of concrete
As a rule, the commercial solution is produced withusing cement M400 and M500. In addition, the mixture contains rubble, sand, and in some cases all kinds of additives, including anti-frost. 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 M400 cement in its composition, then it is necessary to use the ratio of cement, sand and crushed stone in the following proportions: 1: 4,6: 7. In this case, it will be possible to get concrete of the M100 grade.
In order to prepare a mixture of M150 withusing cement of the same grade, it is necessary to apply the 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 should be well studied before carrying out the work. So, in order to prepare a solution of the M250 brand, you will need to connect the components using the 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) is obtained at a ratio of 1: 1.9: 3.7. To prepare the M200 grade, you need to mix the ingredients in a proportion of 1: 2.8: 4.8. In order to obtain a mixture of the M250 brand, you will 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 - the third. The product of the M300 grade will be obtained using the ratio 1: 1.9: 3.7.
For the preparation of a certain brand of concreteThe proportions of concrete can be used by those presented in the article. In order to obtain a solution that will have the brand M400, you will need to connect the components in a ratio of 1: 1.2: 2. The product of grade M450 is formed if the main components are used in a ratio of 1: 1.1: 2.5.
Proportions for concrete using cement M500
It is possible to apply cement during cement mixingM500, then the same components are already connected in a different proportion. So, for the preparation of M100 it will be necessary to mix cement, filler in the form of sand, as well as specially prepared crushed stone in the proportion 1: 5,8: 8,1. To obtain in the process of the M150 solution, the ingredients should be added to the mixer in a ratio of 1: 4.5: 6.6. If you use a proportion of 1: 3.5: 5.6, you get M200. Concrete M250 will be obtained if you add all the components in the ratio, which looks like this: 1: 2.6: 4.5.
To receive during the constructionworks of a certain brand of concrete the proportion of concrete must be observed. This will produce a mixture with the desired quality characteristics. The grade of concrete M300 will be obtained if we use the ratio 1: 2.4: 4.3. M400 is obtained by applying a proportion of 1: 1.6: 3.2. The M450 solution can be shut down when circuit 1: 1.4: 2.9 is used.
Blend characteristics
Builders know what cement to use whenthe composition of a particular type of concrete. This is determined by the types of work to be done. The higher the quality of cement, the less it will be needed to produce a solution. Mark determines the strength of the material for compression, but this value can only be established after the design has become stable, and this usually occurs after 28 days. In construction, the most common mixture, which is determined by brands from 50 to 550.
Application area
Concrete grades and their characteristics presentedin the article, will allow you to make the right choice to get a quality design. The technology of solution preparation and its proportions are determined by the type of work, as well as the designation of the object. M100, for example, found its application when pouring a foundation of tape type and monolithic slabs. Such a mixture should be laid in thicknesses ranging from 5 to 10 cm. Quite often such a composition is used in road construction, in addition, it is indispensable in preparing the laying of the main coating. If we compare this mixture with M150, then we can say that the latter option is excellent for laying the floor, pouring the sidewalk, as well as making the tape base.
Table of concrete quite often helps beginnersmasters. The M200 solution can be used not only in private, but also in industrial construction. Most often it is used for the construction of low-rise buildings, pouring of reinforced concrete blocks, and road plates. Despite the fact that the M250 has more impressive strength, it is not so in demand in private construction. It is usually used for pouring stairwells, blind areas, foundations, solid fences, and also for monolithic foundation erection.
Concrete (grade 300) is the most commonroad construction, blind or overlapping, as well as pouring sidewalks. The same should be said about the brand 350. Such mixtures can be called universal. M400 can be used for arranging all types of structures of any purpose. Poured with the help of this concrete design assumes special operating conditions. It is worth mentioning the M500, it is indispensable in the construction of dams, dams and structures, which must be highly durable.
About the quality of cement
In the construction of foundationsThe most common concrete is M200-M500. It is worth remembering that not only the correct shutting and the use of the correct proportions are the key to obtaining a solution of sufficiently high quality. If you use cement that has been stored for a long time or incorrectly, with high humidity, then the quality of the mixture will not be the best, even if the cement grade is high. This indicates that the raw material must be stored in a dry place, and it is recommended to use it as soon as possible after the purchase.
Price of solution
If you decide to use in constructionconcrete, 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. Concrete brand M100 will cost 2100 rubles. While the price of the M150 slightly exceeds this figure - 2250 rubles. For concrete M300 it is necessary to pay 2800 rubles.
Finally
It should be noted that the brand of concrete is sufficientan important component in the process of construction or repair work. It is from this characteristic that the strength of the structure after hardening, the lifetime of the monolith, the water resistance and the quality that determine the resistance to low temperatures will depend. Mark determines the index, which characterizes the compressive strength. This characteristic is defined in kilograms.
If it is necessary to build a structure with morewith impressive quality characteristics, then it is necessary to use concrete with higher compressive strength. However, the same composition can be obtained if different grades of cement are used. Do not assume that using more expensive material will not work. On the contrary, if a higher quality cement is used, then it will take much less time to effect the mixing of the solution than that which is not of such a high quality and is not capable of providing the required viscosity. After you have studied the concrete grades and their characteristics, you can start work.
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