M300 concrete - technical data of the brand. component
Depending on the strength characteristics of the compositions are divided into certain categories that affect the scope of application. Widespread in the construction environment received concrete M300, which is a versatile material. The high popularity of products could provide not only an affordable price, but also technological quality, allowing you to create reliable products and designs.
About the application in detail
Having considered the possibility of using a building mixture of this brand, many developers will be able to save themselves from the problem of choice by removing other analogues from the list. It should be understood that the grade of concrete M300 corresponds to class B22,5.
It is manufactured in the factory mainly from cement M500.
- Most often, such a composition is used in the device of concrete foundations of almost any type for cottages and private houses.built from various materials.
- Quite an active solution is used to make a blind area around the perimeter of buildings., protecting the base from moisture, especially if they are subjected to severe stress.
- Another use case is the creation of platforms for cars and heavy equipment.. Also, using the presented composition can be poured floor screed.
- And finally, concrete B22 5 - М300 can be used in the construction of walls of residential, industrial and commercial buildings..
Addition! Also, the composition is actively used in the construction of roads. With its help, a special pillow is formed, which serves as the main one for the tracks with increased operational load.
Technical details
Thanks to the table below, you can study the technical characteristics of concrete M300. However, they will be relevant if the basic requirements and proportions were respected during the preparation. Detailed information is given in paragraphs of GOST 26633-91, which discusses the basic conditions for mixing heavy and fine-grained solutions.
| Characteristic | Description | Indicator |
| Closest class | The approximate ratio of the strength properties of concrete. | B22,5 |
| Frost resistance | A certain number of cycles of freezing and thawing. | F200 |
| Mobility | The ability to spread on a plane under its own weight (from P1 to P4). | P2 (mobile) |
| Water resistant | The ability to withstand hydrostatic pressure in kgf / cm2 (from W2 to W20). | W6 |
| Rigidity | Determined by the method of vibration effects on the composition. | W2-J4 |
| Strength | The ability to withstand a certain load in compression. | 295 kgf / cm2 |
Basics of cooking
In the process of hardening, hydration reactions take place in the composition; therefore, the binding agent interacts with the aqueous medium. Thus, completely new compounds are formed. If in the early stages to allow dehydration of the building mixture, then the hardening may cease altogether.
Component Requirements
Under normal operating conditions of the created structure, Portland M400 or M500 is used as a binder. If the structures will be subjected to heat treatment, it is recommended to purchase only cements belonging to the I and II efficiency groups when steaming.
The following materials can serve as large aggregates: crushed stone or gravel obtained from dense rocks, granular substances from ferroalloy and blast-furnace slags. The average density of the bulk component should be in the range of 2000-3000 kg / m3.
Natural sand or loose mix from screenings of crushing of some rocks with density from 2000 to 2800 g / cm3 can act as fine aggregate. The content of clay and dust particles is also taken into account.
With regard to water, then it has requirements that are described in the documentation GOST 23732-79. The used liquid should not have oily and greasy films. If aesthetic requirements are imposed on the composition, then there should be no presence of coloring impurities.
Ratio of parts
Before you prepare the solution with your own hands, you need to consider the proportions of concrete M300 per 1m3, since the volume of building structures is measured in cubic meters. For example, to calculate the number of components for the foundation, you must first determine the total content of the mixture.
For convenience, the proportions of concrete M300 in buckets are given below, since the bulk density of the components is not so different. In this regard, the error in the calculations will be insignificant. Further it is proposed to look at the table.
| Component name | Количество вечеров |
| Cement | 25 |
| Gravel | 90 |
| Sand | 43 |
| Water | 18 |
Attention! Determining the composition of concrete M300 on 1m3, you need to multiply the result by the total number of cubic meters. Then it will be possible to get the final consumption of each component in the buckets.
Care after pouring
Regardless of the brand of solution being made, it is necessary to maintain optimal conditions during the solidification period. To prevent the formation of cracks during freezing, it is desirable to cover open surfaces with a film or burlap, and then cover with sawdust or sand. The humidification process should be carried out no later than 10-12 hours after the completion of pouring.
Final part
Having prepared M300 concrete in accordance with GOST 26633-91, you can create a reliable foundation for your future home, arrange a quality blind area around the foundation, or form a reliable screed for the floor covering. Visual instruction on the topic is presented in the video in this article, so that beginners can master the material better. After all, the durability of the constructed structure will depend on its perception.