What is the substance like concrete?Its main components are the gravel or crushed stone, which fills the voids formed.Concrete is used in many areas of construction.Accordingly, such a mixture can be used for different purposes, and thus varies the volume of its constituents, in particular cement, which is calculated at a rate of one cubic meter of concrete, which ultimately affects the price of the product.
Concrete has its own classification and different brands.Their symbols are an indication of its reliability.Accordingly, the more reliably the substance, so it is more expensive.However, the use of concrete, it of certain brands, primarily due to the strength of the material is not, and operational features of the object, which is used for the construction of the mixture.
itself concrete volume of 1 cubic consists of about 0.5 cubic meter of sand, gravel and crushed stone and cement.Consumption of cement in the concrete cube is caused by its brand name.The most popular of them will be further examined.
"M100" - weight of the cement must be 220 kg per 1 cu.It is used in monolithic concrete structures, curbs, floor concreted on the ground.
"M200" - the consumption of cement in the concrete cube - in the amount of 280 kg.It is characterized by high resistance to contraction.Suitable for use in foundations, based on different designs, to produce some small roads (for example, for pedestrians).
"M250" - the amount of cement should be 330 kg.This brand uses small demand, although it has the characteristics of a lot better than the previous ones.Mainly used in the foundations of monolithic structures, stairs, sidewalks.
in concrete brand "M300" laid 380 kg of cement.This type is used in important buildings, which should be very strong and steadfast, on which depends the safety of many people.In a sufficiently large scale in recent years used a concrete in the suburbs.Without this material can not do collector systems, building pavings, solid walls and tracks for vehicles.It withstands temperatures up to 180 degrees due to additional chemical additives.
Also, for any concrete foundation must be made in the ratio 1: 3: 5.In other words, 1 is added to the bucket cement 3 - sand, and 5 - rubble.Water may be added to the eye.The proportions must always remain so, the difference lies only in the type of cement.The strength of the foundation controls the flow of cement per cubic concrete.First you need to calculate the pressure of the planned construction, and then select the desired view.The minimum acceptable grade for the foundation - M300, if the figure is lower, then use the substance for the construction of the foundation is prohibited.
The main conclusion is that the reliability of the entire building structure (private house, high-rise building, a school, and so on) depends on what kind of cement consumption by cubic meter of concrete will be used.In fact, a lot of brands of concrete, herein presented only the most basic.View the cement is selected for a specific construction, according to prescribed standards.
