Concrete surfaces and structures have the qualities of durability and high strength, however, with prolonged use or significant loads, damage and cracks appear on them. In this case, repair mixture for concrete will help. However, before purchasing it, it is important to consider the features and quality characteristics of each brand.
Characteristics of repair mixtures
A mixture designed to restore concrete structures and surfaces must be resistant to frost and temperature extremes. Among other things, it must have a high level of adhesion, and also demonstrate durability. The composition should have antiseptic properties and vapor tightness. After application to the surface, the mixture should cope well with the effects of water.
Indications for the use of repair mixture
Repair mortar for concrete is applied when there are a large number of potholes and defects on the base. Such compositions are used when cracks are opened 0.3 mm or more. Quite often, concrete is characterized by increased dust formation, while the use of a repair mixture is also shown. The design can be covered with voids, corroded, it can be all kinds of defects. In all these cases, it is recommended to use a repair mixture.
Repair mix manufacturers
Repair mixture for Emaco concrete is made in Russia. It is used to restore concrete structures that have serious or minor damage. This composition is able to eliminate five different degrees of damage.
The first degree involves the presence of shells, shrinkage cracks, as well as contamination. The maximum damage depth is 5 millimeters. To eliminate such errors, use a mixture of the brand Emaco N 5100.
The second degree of damage involves peeling the surface and the presence of minor chips. In order to get rid of such shortcomings, you should use compositions of the brands Emaco N 900 and Emaco N 5200.
The third degree involves the occurrence of cracks within 1-2 millimeters and rust. The maximum damage depth is 40 millimeters. If you choose repair mixtures for concrete restoration with such errors, it is best to purchase compounds of the Emaco S 488 PG, Emaco S 5400 and Emaco S 488 brands.
The fourth degree is cracks that are more than 0.2 millimeters. In this case, bare reinforcement may appear and carbonization may occur. The maximum damage depth is 10 cm. It is best to purchase Emaco T1100 TIX, Emaco S560FR or Emaco S 466 mixtures to repair such damage.
The most recent destruction is of the fifth degree. In this case, the reinforcement may be exposed, there may be deep cracks on the surface. At the same time, the damage depth exceeds 20 cm. Emaco Nanocrete AP will help protect against the effects of corrosion on valves. If you decide to use repair compounds of the above brands, then you will have to pay from 13 to 26 dollars for 25 kg.
Repair mixes of the Birss brand
Repair mixtures for concrete restoration are produced by Birss, which is located in Russia. These compounds are intended for the restoration of structures and concrete substrates. If there is a need to deal with damage of the first degree, then you can use the mixture "Birss 28", "Birss 29". While the second degree will allow to cope the composition of “Birss 30 C1” and “Birss 58 C1”.
This manufacturer has repair mixtures for all degrees of damage. The main advantages include salt resistance, high adhesion, water resistance, frost resistance, density and elasticity, as well as wear resistance and resistance to shrinkage. The price of such mixtures is much lower and equal to 6 dollars per 50 kg.
Features of repair mixes "Bars"
The repair mix for Bars concrete is convenient during application and can be used to repair horizontal and vertical surfaces. These formulations can even be applied to old concrete coatings. Mixtures of bulk and thixotropic type are on sale. The composition of the Bars 102 B45 brand belongs to the latter variety. It should be applied to the surface with a layer whose thickness varies from 2 to 4 cm. The composition contains non-shrink components, as well as reinforcing fibers. The price compared to other mixtures is considered average and equal to 13 dollars per 30 kg. If there is a need to eliminate water leaks in the concrete structure, then the Bars 113 console should be used, this mixture has additional strength properties and the ability to expand.
Features of repair mixtures "Ceresit"
Repair mixture for concrete “Ceresit” is common in the market of building materials, perhaps the most. It has excellent restoration properties for all kinds of concrete surfaces and substrates. After application, the composition forms a non-shrink plug, which is resistant to frost and water. It will securely seal all cracks and leaks. You can buy such a composition for a higher price compared to other mixtures, the price varies in the range of 41 dollars per 25 kg. However, this mixture will be offset by superior quality.
Features of repair mixtures ICBMs
In the assortment you can find other varieties of compositions. For example, concrete repair mortar MBR 500 is intended for the repair of structures that have defects. Such a composition can be stored for six months at a fairly wide temperature range, from -50 to +50 degrees. Considering the technical characteristics of this composition, it can be noted that it has different brands within the ICBM 300 - ICBM 700. Each of these mixtures can be stacked with a maximum thickness in one approach. For example, ICBM 320 is applied with a thickness of 40 millimeters, while ICBM 700 is applied with a thickness of 20 millimeters. As an alternative solution in the latter case, a form can be used. After solidification, the ICBM 700 acquires a density of 2350 kilograms per cubic meter. Whereas an ICBM 300 exhibits a density within 2100 grams per cubic meter.
Concrete Repair Tips
Repair mortar for concrete should be selected depending on the type of defect, the expected load during operation, as well as the size of the damage. If there is a need to strengthen the base, then the most suitable option is the use of a deeply penetrating primer mixture. If you choose a repair mixture for concrete, which should help strengthen the vertical surface or concrete structure, thixotropic compounds should be preferred. Such mixtures have a thick consistency and excellent adhesive properties. This leads to the fact that they hold well enough on the surface of the walls.
Conclusion
When leveling surfaces, compositions that have good adhesion properties should be used. If there is a need to eliminate cracks, it is recommended to choose fiber reinforced compounds. Before buying, you need to pay attention to some characteristics of the composition, among them - the solidification period, material consumption, as well as the size of shrinkage.