Concrete M100.

Composition of concrete M100. The recipe for it.

To get one cubic meter of finished concrete you will need:

Cement M400-500 - 200kg - average value depending on the brand of cement

Water - 150 liters - from the required consistency of the solution

Sand + crushed stone - 780 kg + 1120 kg

In accordance with GOST 747394 “Concrete mixes. Specifications»

concrete M100 (grade 100) has the following characteristics:

- strength class B7.5, which means that it can carry a load of no more than 98 kg / cm2;

- frost resistance F50. This type of concrete can only withstand 50 full freeze and thaw cycles;

- water resistance W2. On a scale from 2 to 20, it has the lowest rating for water permeability;

Appointment and scope of concrete M100.

Despite the low strength characteristics, concrete m100 is widely used in construction. Basically, of course, it is used in the construction or laying of lightly loaded structures and foundations. Due to the lowest price among all concretes, grade 100 is used for the following types of work:

- for preparatory work on the first layer before pouring the main structures, foundations (slabs);

- on the underlying layers of lightly loaded, not intensive roads;

- for the installation of curbs, fence posts, etc., in which the hardened concrete will not bear the load.

Concrete M150

Composition of concrete M150. The recipe for it.

To get one cubic meter of finished concrete you will need:

Cement M400-500 - 240kg - average value depending on the brand of cement

Water = 150 liters - from the required consistency of the solution

Sand + crushed stone - 780 kg + 1120 kg

In accordance with GOST 747394 “Concrete mixes. Specifications»

concrete M150 (grade 150) has the following characteristics:

- strength class B12.5, which means that it can carry a load of no more than 164 kg / cm2;

- frost resistance F50. This type of concrete can only withstand 50 full freeze and thaw cycles;

- water resistance W2. On a scale from 2 to 20, it has the lowest rating for water permeability;

Scopes of concrete M150.

It is used for the following types of work:

- pouring pillars and foundations of fences and other various fences;

– construction of foundations with a small load for various types of outbuildings (arbors, bathhouses, garages, utility blocks, etc.);

- concrete pad for car parks and car parks;

— concreting of pedestrian, bicycle, country paths;

- for carrying out internal construction affairs (rough floor screed, etc.).

Concrete M200.

Composition (proportions) of concrete M200. The recipe for it.

To get one cubic meter of finished concrete you will need:

Cement M400-500 - 300kg - average value depending on the brand of cement

Water - 160 liters - from the required consistency of the solution

Sand + crushed stone - 760 kg + 1100 kg

In accordance with GOST 747394 “Concrete mixes. Specifications»

Concrete M200 (grade 200) has the following characteristics:

- strength class B15, which means that it can carry a load of no more than 196 kg / cm2;

- frost resistance F75. This type of concrete can only withstand 75 full freeze and thaw cycles;

- water resistance W4. Water resistance scale from W2 to W20. The higher the coefficient, the more the concrete is resistant to moisture.

Areas of application for concrete grade 200.

It is used for the following types of work:

– stairways, landings, concrete paths, sites for various purposes, Preparation of screeds from a monolith in buildings for industrial and civil purposes;

— concreting of the foundation, namely tapes and piles for individual housing construction;

– formation of a monolithic cushion for the canvas during the construction of roads;

- the basis for the installation of curbs, monolithic stairs, a concrete cushion for car sites and parking lots;

- in the production of reinforced concrete products, namely wall blocks and foundation blocks (FBS), road slabs.

Concrete M250.

Composition (proportions) of concrete M250. The recipe for it.

To get one cubic meter of finished concrete you will need:

Cement M400-500 - 330kg - average value depending on the brand of cement

Water - 140 liters - from the required consistency of the solution

Sand + crushed stone - 740 kg + 1100 kg

In accordance with GOST 747394 “Concrete mixes. Specifications»

Concrete M250 (grade 250) has the following characteristics:

- strength class B20, which means that it can carry a load of no more than 262 kg / cm2;

- frost resistance F100. This kind of concrete can only endure 100 cycles of total freeze and thaw;

- water resistance W4. Water resistance scale from W2 to W20. The higher the coefficient, the more the concrete is resistant to moisture.

Areas of application for concrete grade 250.

Ready-mixed concrete grade 250 has an intermediate value between such grades as m200 (universal for all types of low-rise and summer cottage construction) and M300.

It is used for the following types of work:

- like concrete grade 200, it is used for concreting the foundation, namely, tapes and piles for individual housing construction, as well as various blind areas and paths to houses, baths, sheds, garages;

- together with the iron frame for pouring floor slabs, stairs and their platforms;

- concrete base (slab) of car sites and parking lots;

- for products at the factories of reinforced concrete products.

Concrete M300.

Composition (proportions) of concrete M300. The recipe for it.

To get one cubic meter of finished concrete you will need:

M400-500 cement - 366kg - average value depending on the brand of cement

Water - 140 liters - from the required consistency of the solution

Sand + crushed stone - 740 kg + 1100 kg

In accordance with GOST 747394 “Concrete mixes. Specifications»

Concrete M300 (grade 300) has the following characteristics:

- strength class B22.5, which means that it can carry a load of no more than 295 kg / cm2;

- frost resistance F100. This kind of concrete can only endure 100 cycles of total freeze and thaw;

- water resistance W6. Water resistance scale from W2 to W20. The higher the coefficient, the more the concrete is resistant to moisture.

Areas of application for concrete grade 300.

It is used for the following types of work:

- foundation, namely tape, pile, slab for individual housing construction, as well as various blind areas and paths to houses, baths, sheds, garages under adverse weather conditions and soils;

- monolithic stairs, platforms for them, wall panels, foundation blocks;

- concrete base (slab) of car sites and parking lots;

- poles of power lines, some types of beams of columns in the construction of bridges and many other structures. where a constant heavy load is assumed.

Concrete M350.

Composition (proportions) of concrete M350. The recipe for it.

To get one cubic meter of finished concrete you will need:

Cement M400-500 - 440kg - average value depending on the brand of cement

Water - 140 liters - from the required consistency of the solution

Sand + crushed stone - 700 kg + 1100 kg

Characteristics of Concrete M350.

In accordance with GOST 747394 “Concrete mixes. Specifications» concrete

M350 (brand 350) has the following characteristics:

- strength class B25, which means that it can carry a load of no more than 327 kg / cm2;

- frost resistance F150. This type of concrete can only withstand 150 full freeze and thaw cycles;

- water resistance W8. Water resistance scale from W2 to W20. The higher the coefficient, the more the concrete is resistant to moisture.

Areas of application for concrete grade 350.

It is used for the following types of work:

- in case of monolithic housing construction, tiled foundations of multi-storey buildings;

– landing and take-off plates, road plates, which are able to withstand even the load of dump trucks carrying ore;

- the base of the pool bowl, supporting columns of sports facilities, stadiums, and other special-purpose products that can withstand the most extreme loads.

Concrete M400.

Composition (proportions) of concrete M400. The recipe for it.

To get one cubic meter of finished concrete you will need:

Cement M400-500 - 480kg - average value depending on the brand of cement

Water - 150 liters - from the required consistency of the solution

In accordance with GOST 747394 “Concrete mixes. Specifications» concrete

M400 (grade 400) has the following characteristics:

- strength class B30, which means that it can carry a load of no more than 393 kg / cm2;

- frost resistance F200. This type of concrete can only withstand 200 full freeze and thaw cycles;

- water resistance W10. Water resistance scale from W2 to W20. The higher the coefficient, the more the concrete is resistant to moisture.

Areas of application for concrete grade 400.

Despite the fact that M400 concrete is one of the heaviest and most expensive concretes that is not used in private construction, it is used quite well in Ufa and the Republic of Bashkortostan. It is used for the following types of work:

- all kinds of constructions of automobile and railway bridges;

— manufacturing of hydrotechnical and reclamation structures (dams, locks, state district power stations, dams);

– pouring the most technically complex columns of shopping centers, water parks, stadiums;

- creation of slab foundations for huge structures;

- airfield plates, bank vaults, military and other special facilities. destination.

Concrete pump - construction equipment for receiving freshly prepared concrete mix into the bunker from specialized concrete vehicles (concrete mixer trucks, ABS) and supplying it through the concrete pipeline in horizontal and / or vertical directions to the place of installation. Concrete pumps are used for laying concrete mixture into large massifs - formwork for the construction of all kinds of concrete, more often reinforced concrete structures and other modern infrastructure facilities. It is a more effective tool for working with concrete mixtures than, for example, a "shoe" when working on high-rise structures. construction speed increases approximately three times.

Truck-mounted concrete pumps are used in the construction of residential and commercial buildings, tunnels, bridges, roads, high-rise buildings (for example, when laying the foundation, building underground parking lots and building ground floors), full-fledged construction of low-rise buildings and other structures

Stationary concrete pumps are involved in the construction of high-rise buildings, tunnels and other structures in conditions where the use of automobile concrete pumps is impossible due to the technical parameters of the project or working conditions. For example, the mixture must be applied to the ceiling at a height of more than 70 meters and an area of ​​​​more than 30 square meters. meters. In most cases, the concrete pump is used in conjunction with systems of concrete pipelines and distribution b