Concrete M300. Main characteristics

Since the Soviet era, the M300 concrete is the mostuniversal and in demand from all existing brands. Depending on the purpose, the composition of the mixture also changes, only the quantity of cement in a cubic meter remains unchanged, and it is equal to three hundred units, which is indicated by the name of this category of goods. The remaining components change all characteristics of concrete: density, water resistance, frost resistance. In addition to cement, gravel, limestone or granite may be selected as a filler. Granite provides the product with the highest strength, durability and, consequently, the highest cost.

Concrete M300 is used in almost everysphere. It is used in private and large-scale construction, in the construction of technical and industrial structures, the laying of roads and protective structures. This brand is at an average level by its characteristics, so the demand for it is very high. This is the most suitable option for the construction of foundations, pouring monolithic structures, laying pavements, footpaths.

Concrete M300 in accordance with GOST has the following indicators:

1) The coefficient of strength is B22.5.

2) The level of mobility is P2-P4.

3) Moisture resistance level - W6.

4) The coefficient of frost resistance is F150.

These indicators are sufficient for the construction of complexstructures of both bearing and non-carrying components. The recipe for the same class of concrete may differ, depending on the additives included in the formulation. In general, use of lignopane B4 or sodium nitrite in the winter, as well as accelerators and plasticizers. Therefore, the price for M300 concrete varies greatly, the more components in the mixture, the higher it is. Also the cost is significantly affected by seasonality. For example, in the spring-summer period, prices for concrete products increase by 20-25%. Therefore, it is recommended to buy all the building materials in advance in order to save a significant amount of money. On average, the price for one cubic meter of the finished mixture is 3500 rubles. One bag weighing 25 kg can be bought for 200-250 rubles.

The well-known sandstone M300 is used fordevice rings in sewer wells, which are in such conditions as high humidity, temperature changes and other unfavorable factors. The optimum ratio of elasticity and strength makes it possible to use it in the manufacture of monolithic ceilings and interfloor plates.

All the constructed concrete structures and structures fromThis mixture is characterized by high wear resistance and durability. But this can be achieved only by fulfilling all the required conditions for laying the solution. For example, to prevent the formation of voids in concrete pouring, you need to use a special vibrating equipment. It is also necessary to withstand the standards of solidification of the mixture: to ensure that there are no temperature changes, to prevent evaporation of moisture, sprinkle the surface with water. If all technical details are observed, you can be sure that the M300 concrete structures will serve for a long time in the harshest conditions.

</ p>>