Sand concrete of the company "Rusean"

During construction, it is very important to select the appropriate materials with which to increase the efficiency of the work. These include sand concrete, which is becoming increasingly popular in our country. In addition to the positive qualities, the low price, which is due to domestic production, is also very important. One of these companies is Rusean, whose products will be discussed today.

When people first hear about sand concrete, they immediately wonder what it is and why it is necessary. To begin with, it is worth noting that this material is a building mixture for preparing a solution. It should be said that this material has a large number of advantages that distinguish it or make it better than other construction analogues.

• Strength. Due to its structure and structure, "Rusean" sand concrete can withstand heavy loads that may be placed on it during operation. It is composed of quartz sand, plasticizers and Portland cement, which is why the material is durable, reliable and non-shrinking.
• Chemical resistance. Modern technologies make it possible to create very convenient and reliable dry mixes, adapted to the effects of moisture, which prevents the occurrence of corrosion.
• Thermal stability. The manufacturer has provided that sand concrete can be used in rooms with different internal temperatures. Therefore, this mixture can be used in both cold and warm regions.

For those who are not familiar with this material, it is important to indicate the scope of application. It is wide enough due to the properties of sand concrete. The mixture is mainly used to create monolithic floors, which can subsequently withstand serious stress. Also used for sealing joints, leveling surfaces of cement-sand compositions.

Rusean products are also useful in the repair of various concrete surfaces, reconstruction of foundations, during installation work. Due to its properties, the material can serve as a basis for laying a leveling floor screed, as well as for facade and cladding work. Based on the scope of application, we can conclude how versatile sand concrete is.

Sand concrete has a classification and designation, which makes it possible to distinguish between different grades of dry mix. It is the letter "M" that means the word "marking", which is present in each name, and the number indicates the characteristic of tensile strength.

The most inexpensive sand concrete, which mainly consists of river sand and high quality Portland cement. Besides, during the manufacture, special additives are used that make this material the most resistant to the effects of the external environment. The pot life of the solution is 90 minutes, during which the sand concrete retains all its basic properties. Compressive strength is 15.2 MPa, packing in the form of 40 kg bags.

The compressive strength of the sample is 150 kg / cu. cm. Small grains included in the composition make up a fraction of the material with a size of 1.25 mm. For successful use of the solution, you will need 0.17-0.18 liters of water per 1 kg of dry mix.Another important technical indicator is frost resistance, which reflects the ability of a material to withstand freezing and defrosting, followed by the release of water and its absorption by the mixture.

For M 150, this parameter is 35 cycles, while the layer thickness recommended by the manufacturer should be in the range of 10-30 mm, depending on the specifics of the construction project. The ability of adhesion to other surfaces, or adhesion, is equal to 0.5 MPa. The shelf life of dry mix in unopened original packaging is 6 months. This mixture is used by consumers for simple jobs such as repairing various surfaces. The objects of application are floors, walls and foundations.

The next model of sand concrete, which has been improved and has characteristics different from the 150th mixture. M 200 is distinguished by its viability, and in this variant the basic properties of the solution are retained for 120 minutes. Frost resistance - 35 cycles, recommended layer thickness - from 10 to 30 mm. The hardening time is 2-3 days, during this period the mixture begins to actively set, thereby creating a dense base. It is very important to comply with all the conditions for adding water and making sand concrete for the most effective result. After 28 days, the M 200 will finally set, thereby reaching its maximum strength.

The water consumption is 0.12-0.14 liters per 1 kg, in total 4.8-5.6 liters will be needed per bag. Shelf life in original packaging is six months. As for the scope of application, it has been expanded in comparison with the M 150 model. This is plastering, masonry work, wall construction, as well as various operations for concreting surfaces and pouring floor screed. Combined with a low price, this sand concrete is quite popular and is excellent for performing works of medium complexity in both domestic and professional construction.

The next type of sand concrete, which is more expensive and more reliable than previous analogues. The main area of ​​application is various rough leveling of concrete structures, floor pouring and much more that needs to be strengthened using the properties of this material. The maximum fraction is large enough and is 5 mm, while the consumption of the mixture per 1 m2 is 20-22 kg, provided that the layer thickness is 10 mm.

Bulk surface density - 1500-1550 kg / m3 m, the temperature range during work is from +5 to +25 degrees. The key feature of the technology is the layer thickness, which has been increased and is equal to 50-150 mm. With this change, you will be able to provide even greater strength and reliability after the material is completely cured. Adhesion to concrete is 0.4 MPa, the pot life of the solution is 120 minutes.

Walking ability - 48 hours, while frost resistance is at the F50 level, so you can work with the mixture even at zero temperature. M 300 is also distinguished by its high strength, for example, in order for the material to begin to deform, a pressure of 30 MPa must be applied to it. The packaging option is 40 kg bags with a shelf life of 6 months. After proper preparation of the mixture, its application and hardening, sand concrete can be operated in a temperature range from -35 to +45 degrees.

M 300 is used in small construction, where the price-quality ratio is very important. Optimal characteristics, ease of use and relatively low cost make this sand concrete one of the most popular among buyers.

The latest and most technologically advanced dry mix produced by Rusean. It contains high-quality cement, various fillers and additives that allow the material to firmly set and be resistant to environmental conditions. The main objects of application are floor and foundation, as well as finishing works on the facade. The viability of the solution while maintaining the basic properties is 120 minutes, the water consumption per 1 kg of dry mix is ​​0.08-0.11 liters. M 400 is distinguished by a very coarse filler fraction of 20 mm, while the hardening time is 48 hours. The layer thickness recommended by the manufacturer should be in the range from 50 to 150 mm, adhesion - 0.5 MPa.

Another distinguishing feature of this sand concrete is its increased resistance to moisture, which is expressed in high frost resistance for 100 cycles. The consumption of the mixture per 1 m2 is 1.8-2 kg with a layer thickness of 1 mm. It is worth saying that M 400 is often used in professional construction, when it is necessary to equip a high-strength and wear-resistant floor screed.

A very important part of the job is the correct preparation of the mixture. It is from this process, as well as from the application of the material, that the entire result of the work depends. Mixing is a responsible business that must be taken seriously.

• First, you need to clean up the place of future styling. To do this, treat the surfaces to which you will apply the mixture. As a result, they should be free of dirt, dust and remnants of past coatings in order to maximize grip. Some builders even use degreasing agents to get the most out of their jobs.
• Then it is important to prime the surface to get rid of joints, grooves, cracks and other irregularities.
• After that, you need to start the process of making the mixture itself. In accordance with the characteristics of your sand concrete, prepare the amount of water that will be enough for the prepared material. It should be added that the liquid should be of medium temperature.
• After combining the ingredients, start mixing the contents. This can be done either manually or with a construction mixer, depending on the scale of the work. The most important thing is that the created mixture does not have lumps and is homogeneous.
• After its preparation, the composition must stand for 7-10 minutes, then mix again and only then can it be applied to the surface. It is worth noting that for pouring the floor, you need to have a construction trowel, with which you can apply the mortar in an even layer.
• After applying the mixture, it must be tamped so that the layer becomes as dense as possible when it hardens. For this, you can also use various construction tools. Sand concrete sets in 5-6 hours, and takes the main hardness in 2-3 days, which must be taken into account when operating a building or other premises where work is carried out.

Finally, consider the valuable recommendations of builders who have been engaged in such activities for a long time.

• Floor repair requires much less mix than a full fill. For laying bricks, you can adhere to the fact that for 1 m2 you need 2.3-2.6 kg of material.
• It is also important to note that if you are going to perform work on a large area, then the mixture must be reinforced with reinforcement so that the reinforcing layer makes the sand concrete stronger in the most vulnerable places.
• Working air humidity should be no more than 80%.
• All experts recommend paying attention to the amount of water used in the mixture. A lack of it will lead to the formation of lumps, which will cause irregularities, and an excess will make the sand concrete less durable and prone to cracking.
• During the preparation of the mixture, you must have the necessary equipment in the form of glasses, clothing and gloves, and also avoid inhaling sand concrete. It is important to rinse the working tool periodically, as the material remaining on it can dry out.
• Professionals advise to draw the attention of consumers to the fact that it is very important to purchase all material in advance.