Concrete is the main component of any repair and construction. Possessing high strength characteristics a priori, it was only slightly improved by the use of additives in concrete to obtain the required properties of hardness, durability, refractoriness, etc.
Concrete of various weights
The most common is heavy concrete. It is produced with crushed stone or gravel as filler. Almost all reinforced concrete structures made of it - floor slabs, monolithic columns, pillars, well rings, lintels and much more.
Lightweight concrete - pumice concrete, slag concrete, expanded clay concrete - is used in the construction of walls. Such concrete mixes are used to make blocks, panels and other structures for partitions of industrial and residential buildings. The concrete elements are lightweight, which makes the whole building lighter.
Foam concrete and aerated concrete are particularly lightweight, their cellular structure allows us to speak of good thermal insulation properties. Possibility of application: when installing a heat-insulating layer, for example, for insulating a facade.
Our company is engaged in the production and sale of heavy concrete. Thanks to innovative equipment, we can produce concrete mixtures of different grades (M 100 - M 500), with different component ratios
Our company offers cooperation to interested construction firms, manufacturing and industrial enterprises, private customers. In addition to guaranteed quality, we have an individual approach to customers.
We carry out delivery of products without delays, at the appointed time. The concrete truck fleet makes it possible not to depend on third-party carriers. We are in complete control of the situation.
Our prices for a cube of concrete are lower than in most companies of a similar profile operating in the Moscow region. This is due to a well-thought-out pricing policy and competent management.
We are pleased to offer you the best at affordable prices.
It is no exaggeration to call this product one of the most used in different types work, be it restoration, major or "spot" repairs, not to mention construction. Any kind of activity starts with planning events. This provides for and, and not only in terms of their number, but also in terms of characteristics.
It should be immediately noted that the concept “ specific gravity»In practice, no one uses... The fact is that all concretes differ in their components. Various materials are used as a filler - crushed stone, pebbles, expanded clay and some others. Even the use of the same substance does not guarantee the identity of the final product, since it is the same. Naturally, the larger they are, the more voids are formed in the structure of the material.
The builder is primarily interested in how much concrete weighs. It is this indicator that determines the specificity of its application, since on the basis of such data types of structures are calculated depending on local conditions. For instance, when determining the type of foundation for different soils, the mass of concrete is taken into account... The same applies to various load-bearing elements, floors and the like.
In practice, experts operate with such an indicator as "volumetric weight", while you need to understand that this characteristic is not a constant. The weight of the concrete depends on the ingredients from which the mixture was prepared. In addition, the volume of water consumed when mixing the solution is also taken into account. Depending on this, the following types of products are distinguished.
- Heavy concrete
Hard rocks are used as a filler -. It is with such solutions that the foundations of structures are poured, the erection of bearing parts of structures. There is an approximate proportion of the components, but it is not unchanged, since, depending on the brand of the used binder (cement), the proportion may change in one direction or another. Therefore, the mass of heavy concrete can vary within certain limits (1 800 - 2 500 kg / m3). By the way, this applies to all such materials.
Specific gravity table of concrete cube
- Especially heavy concrete
They are used quite rarely and, as a rule, only on an industrial scale, during the construction of special facilities. In the "private sector" such materials are not used. The mass of coarse aggregate (hematite, barite and others) basically determines how much concrete weighs. The composition may also include iron ore and cast iron "shot". The production technology implies the use of only high grade cements. The volumetric weight of such concretes is in the range of 2,500 - 3,000 kg / m3.
- Light concrete
When solidified, these products form a more porous structure, therefore, concrete of this class weighs less - from 500 to 1800 kg / m3. The fillers are "light" materials - pumice, tuff, expanded clay and the like.
- Particularly lightweight concrete
It is clear that these are products, the weight of 1 m3 of which does not exceed 500 kg. The fillers in them, as a rule, are vermiculite, perlite and some other substances. In construction, taking into account the mass of concrete of this class, they are mainly used as "heat insulators", when sealing joints, seams, sealing cracks.
SNiP for specific weight of concrete
To find out how much concrete weighs, it is advisable to look in a document such as SNiP No. II-3 from 1979. This Standard specifies the specific gravity for various concretes. Here are the data for certain types of products (depending on the filler used), most often used in individual construction (in "kg / m3"):
- 2 500 - reinforced concrete products;
- 2 400 - gravel or crushed stone;
- 1 200 - 1 600 - tuff;
- 800 - 1 600 - pumice (volcanic rock fractions);
- 500 - 1 800 - expanded clay. Here, what kind of sand is included in the mixture plays a role. Data are indicated for expanded clay. For quartz, the range is already from 800 to 1200. If the sand is perlite, then the specific gravity of 1 m3 lies in the range 800 - 1000;
- 300 - 1000 - for foam and aerated concrete.
These data are approximate, but they should be guided by them when determining the mass of concrete in the future "pouring". The fact is that none of the calculations involves calculations with an accuracy of several kilograms.
Sometimes private developers focus on the brand of the finished product. How much concrete weighs, you can find out if you take into account the following average data for "heavy" types of products (kg / m3):
- 2495 - for М100;
- 2430 - for М200;
- 2 350 - for М250;
- 2 390 - for М300;
- 2,500 - for М350;
- 2,375 - for М400;
- 2 300 - for М500.
In practice, knowledge about how much concrete weighs is needed not only when installing or repairing any structures. This is also calculated when organizing dismantling or demolition of various structures. Operating with such reference data, it is possible to determine the required number of vehicles for the removal of construction waste, their carrying capacity. For example, ordering transport when carrying out repairs in a private house (apartment) related to the redevelopment of premises.
The question often arises, which is easier - to take out in large lumps or cut them (break up). Therefore, the expediency of using lifting mechanisms is determined or special equipment, their required characteristics. Such calculations allow you to optimize your workflow.
It is important to know
You should not assume that it is enough to calculate the specific gravity of all components separately using the tables, and then sum it up, and as a result, this indicator will be obtained for the entire product. The mass of concrete largely depends on the quality of the batch produced (manually or mechanically), on the presence or absence of various voids, the size of the granules (and they cannot be exactly the same), as well as the amount of water.
Many "amateur" builders believe that the specific gravity is an indicator of the reliability and strength of concrete, therefore they are trying to clarify this issue. This opinion is erroneous. The ability to carry an increased load is determined, first of all, by the brand of the binder (cement).
One of the main indicators concrete mortar Is its density. And when the question is raised how much a cube of concrete weighs, it is necessary to understand that we are talking about density, the unit of which is kg / m³.
And the higher the density, the greater the weight of the solution itself. It should be remembered that these two indicators will depend on the type of filler. Hence the main classification of artificial stone.
Separation by specific gravity
There are four groups in the classification, weight ranges of 1 m 3 of the mixture:
- Heavy 1800-2500 kg.
- Light 500-1800 kg.
- Particularly heavy 2500-3000 kg.
- Especially lightweight up to 500 kg.
Heavy
This solution contains large and heavy fillers (crushed stone, gravel, coarse sand). A cubic meter of material weighs 1800-2500 kg. Even according to the recipe, it becomes clear that the bulk of the mixture is occupied by fillers.
For example, a standard recipe includes: 1200-1300 kilograms of gravel or crushed stone, 600-700 kilograms of sand, and only 250-450 kg of cement. The volume of water is 150-200 liters.
These are traditional (classic) types of concrete that are used for a wide range of applications. Of them are poured bearing structures, screeds, fences and more.
Lungs
As fillers for this type, porous materials are used, such as expanded clay, vermiculite, foamed perlite, waste from various industries. The porosity of the material reduces the weight of concrete, which is why it is called lightweight.
It is much easier to do this in the factory, laboratories do it there. Therefore, experts recommend using classic formulations, using the required components in them, especially for the brand of cement.
Ready-made cement mixtures
Manufacturers of dry mixes based on cement, realizing the complexity of creating a solution in precise proportions, today offer ready-made mixes in which all components are adjusted to a certain strength. This simplifies the process of making concrete mortar itself, plus guarantees its quality characteristics.
Feature of the majority building materials, including concrete, is the presence of pores in them different sizes and origin. These pores make it difficult to measure the specific gravity of the material, because an absolutely dense sample must be weighed to obtain accurate data.
This means that in order to determine the specific gravity of concrete, a considerable sample would have to be crushed into fine dust. Agree that it is quite difficult to perform technically and is required only in the case of serious research and engineering calculations.
Specific and volumetric weight of concrete m200 and m300, weight of a cubic meter of concrete
It is for this reason that no one is trying to find out the specific gravity of concrete m200 , m300 or other common brands. Usually they use another characteristic - volumetric weight of concrete.
This indicator is calculated by measuring the weight of ready-made concrete in a certain volume, while its value can vary greatly, depending on the filler, the presence of pores, air or gas bubbles.
Weight of a cubic meter of concrete can range from 500 to 2500 and more kilograms per cubic meter. According to this indicator, concrete is divided into light, medium and heavy.
Volume weight of concrete grades m200 and m300 usually fluctuate between 2300-2500 kilograms per cubic meter, and they are classified as heavy concrete. This group includes all concretes with crushed stone filler.
Medium concretes are filled with expanded clay, tuff, perlite, aramzite, so the weight of a cubic meter of such concrete is much less - 1200-1800 kilograms.
And the lightest concrete is foam and aerated concrete, produced in the form of ready-made blocks. Such concrete is prepared without filler, moreover, pores are artificially created in it to reduce the thermal conductivity and weight of the finished blocks.
How much does a cube of concrete weigh, weight of 1m3 of concrete
It should be understood that pores are formed in other types of concrete after evaporation of the water that is part of its composition. It is for this reason, if you want to know, how much does a cube of concrete weigh, then you should not drive a query like "specific gravity of concrete m300" and the like into the search line. And use the indicator of volumetric weight, as well as for sand, crushed stone, brick and many other materials.
Many people mistakenly believe that the stronger the concrete, the greater its weight, that is, the strength can be judged by the fact how much does a cube of concrete weigh, but it is not so.
The strength of construction grades of concrete mostly depends on the grade of cement used in the solution, and the weight depends on the nature, quantity and fraction of the filler.
For example, concrete with a filler in the form of granite chips or sandstone will be classified as heavy, and expanded clay concrete with the same content of sand and cement will be medium, or even light.
If you really need to know the specific gravity of any concrete, then it can be roughly calculated by adding the specific gravity of each of the components in proportion to the content: sand, cement, filler, water. In this case, chemically bound water must also be taken into account.
Concrete is the most popular type of material used in the construction of a wide variety of buildings and structures. Possesses unique possibilities for shaping and can be endowed with practically any consumer properties by introducing various additives.
One of the main characteristics is density (specific gravity). This indicator is determined by the ratio of the mass of a substance to its volume. In general, the weight is assumed to be 1 m3. There are four types of concrete mixes:
- Particularly heavy - the density is more than 2500 kg / m3, this group includes limonite, barite and magnesite compositions.
- Heavy - 1799-2499 kg / m3. Examples of concretes in this category: granite, limestone, crushed stone, basalt and granite.
- Lightweight - from 501 to 1799 kg / m3 (expanded clay, arbolite, foam concrete, perlite, vermiculite, aerated concrete).
- Less than 500 kg / m3 - especially light (eg aerated concrete).
What determines the specific gravity
There are three main ingredients in the mix: cement, aggregate and water. The ratio of the components sets the required properties of the final product, such as water resistance, chemical resistance, density. Each of the ingredients requires special attention, otherwise it is impossible to obtain high-quality and durable concrete. Even relatively small inaccuracies in the dosage and production technology of the mixture can subsequently lead to the destruction of the structure.
To obtain high strength concrete, the main condition is the complete filling of the voids between the filler grains with cement paste. A homogeneous fraction of sand has up to 40% of voids in its mass. When using fillers of different dispersion, they become much less. To obtain a dense sandy mass, it is scattered into its constituent fractions, and then mixed according to a certain technology and in a certain ratio. This allows to obtain a minimum (up to 10%) voids for cement paste filling.
Made on a similar mixture, concrete will receive maximum density and strength.
- Water.
The water used must not be contaminated. Any impurities in it will negatively affect the quality of the product, be it sulfates, fats or organic acids. The presence of such contaminants can lead to premature structural failure.
- Cement.
The quality of the cement used for the mix is \u200b\u200bof decisive importance for the quality of the concrete and its grade strength. The manifestation of the adhesive properties of cement depends on the quality of the grinding of clinker. The use of ultrafine cement will provide such an indicator as the activity directly related to the brand strength.
Share of various brands
The mass of concrete of individual grades is given in the table
| Brand | Weight 1 m3, kg | Brand | Weight 1 m3, kg |
| M-100 | 2494 | M-350 | 2502 |
| M-200 | 2432 | M-400 | 2376 |
| M-250 | 2348 | M-500 | 2298 |
| M-300 | 2389 |
| Concrete types | Weight 1 m3, kg | ||
| Shungizite | 100 — 400 | ||
| Vermiculite | 300 – 800 | ||
| Foam silicates and gas silicates | 300 – 1000 | ||
| On expanded clay sand | 500 – 1800 | ||
| Perlite | 600 – 1200 | ||
| On perlite sand | 800 – 1000 | ||
| On quartz sand | 800 – 1200 | ||
| Gazozol-foam ash | 800 – 1200 | ||
| Pumice concrete | 800 – 1600 | ||
| On volcanic slag | 800 – 1600 | ||
| On ash gravel | 1000 – 1400 | ||
| Agloporibeton on fuel slags (boiler houses) | M-150 | 3480 | 3520 |
| B-15 F100 W4 | M-200 | 3720 | 3750 |
| B-20 F150 W4 | M-250 | 3850 | 3890 |
| B-22.5 F150 W6 | M-300 | 3910 | 3960 |
| B-25 F200 W8 | M-350 | 4020 | 4070 |
| B-30 F200 W10 | M-400 | 4170 | 4220 |
| B-40 F200 W12 | M-400 | 4500 | 4550 |
| On crushed gravel | |||
| B7.5 W2 | M-100 | 3300 | 3320 |
| B-12.5 F50 W2 | M-150 | 3400 | 3440 |
| B-15 F100 W4 | M-200 | 3610 | 3650 |
| B-20 F150 W4 | M-250 | 3750 | 3780 |
| B-22.5 F150 W6 | M-300 | 3820 | 3850 |
| B-25 F200 W8 | M-350 | 3910 | 3950 |
| B-30 F200 W10 | M-400 | 4020 | 4060 |
| Sand concretes | Building | Masonry | |
| M-200 | 3420 | 3250 | |
| M-300 | 3700 | 3720 | |
| M-350 | 3820 | 3840 | |
| Skinny concrete | |||
| M-100 | 2990 | ||
| M-150 | 3080 | ||
| M200 | 3140 | ||
| Expanded clay concrete | |||
| M-100 | 3400 | ||
| M-150 | 3550 | ||
| M-200 | 3650 | ||
| M-350 | 4120 | ||
