How to choose repair mixtures for concrete

Concrete bases are durable and durable, but with prolonged operation or large loads, cracks and concrete damage are formed. If necessary, urgent repair of concrete and cement structures, the use of repair mixtures for concrete will be an excellent option. In order not to be confused in the choice of concrete mixtures, I propose to consider the varieties and main manufacturers of these mixtures.

Table of contents:

1. Features of repair mixtures for concrete
2. Varieties of mixtures for concrete repair
3. Tips for choosing mixtures to restore concrete
4. Review of repair mixtures for concrete

Features of repair mixtures for concrete

The composition of the repair mixtures for concrete is selected in such a way as to ensure reliable adhesion of the mixture and concrete base.

Mixtures for concrete restoration have:

• callousness,
• resistance to temperature changes,

• vapor permeability,
• durability,
• high strength,
• high level of clutch,
• antiseptic characteristics,
• water -repellent properties.

With prolonged use of concrete structures or the operation of concrete bases at high loads, various defects are possible. The repair mixture for concrete must be bought if there is:

• a large number of potholes on a concrete base;
• cracks with a discovery of 0.3 mm;
• increased dust formation;
• the formation of voids in the concrete structure;
• deep or surface corrosion of concrete;
• Concrete chips with the exposure of reinforcement;
• Defects are more than 0.2 mm.

Varieties of mixtures for concrete repair

In accordance with the scope of application, the mixture for concrete restoration is divided into:

• mixtures are designed to restore concrete structures: columns, beams, plates;
• mixtures that repair the floors and roads;
• Protective anti -corrosion concrete mixtures.

The first option is used to align or shallow cracks in supporting concrete structures.

Mixtures for the repair of floors are characterized by additional frost resistance, protective properties, water -repellent and good adhesion.

Protective mixtures prevent the formation on concrete bases of mold, fungus and corrosion.

Repair mixtures are divided into:

• mixtures for work on vertical surfaces;
• mixtures for the repair of horizontal surfaces.

The mixtures for aligning horizontal surfaces are characterized by increased reliability and strength, since the influence of large loads is assumed on the horizontal surface. Mixtures for vertical surfaces have an increased level of adhesion, for reliable fastening to the wall.

Among the repair mixtures for concrete, they highlight:

• shrinkage;
• Unnocedous.

If the repair mixture gives a shrinkage, it is difficult to calculate the thickness of the layer, and after a certain time, after the mixture is hardened, the solution is necessary.

Foreths are more expensive, but have a number of advantages:

• increase in the speed of repair work;
• high level of performance;
• convenience in work;
• Great strength and durability.

Tips for choosing mixtures to restore concrete

Consider the main recommendations for the choice of repair mixtures:

1. Carefully inspect the concrete surface and determine:

• type of defect;
• damage size;
• loads during operation.

2. Decide on the functional load of the mixture and select the manufacturer. Consider several options, compare prices, features and compositions.

3. Considering the thickness of the layer and area of \u200b\u200brepair work, determine the amount of the mixture necessary for restoration work. The thickness of the layer depends on the type of damage and is from 0.5 to 10 cm.

4. If there is a need to strengthen a concrete base, the best option would be to use a deep -permanent primer solution.

5. To strengthen the vertical surfaces of the walls or concrete structures, choose ticstotropic mixtures to restore concrete. Such mixtures have a thick consistency and excellent clutch, so stay on the walls well.

6. To perform work to align the surface, mixtures with good adhesive characteristics are used.

7. For the location of cracks, special mixtures reinforced with fiber -fiber are used.

8. Pay attention to the characteristics of the mixture as:

• solidification time - the less, the better;
• Diliators - it is better to buy a finished solution or a water -soluble mixture;
• material consumption, according to the area;
• protection from the sun, frost or chemical influences;
• The size of the shrinkage, it is better to choose non -cocked repair mixtures.

Review of repair mixtures for concrete

1. The repair mixture for concrete Emaco (Russia) is used to restore concrete structures, which have as small, so serious damage.

Emaco repair mixtures are used for five different degrees of concrete damage:

• The first degree is the presence of pollution, shrinkage cracks and shells. The maximum depth of damage is five millimeters.

For such work, it is suitable: Emaco N 5100.

• The second degree of damage involves crushing or peeling the surface, the presence of small slopes.

For such work, it is suitable: Emaco N 900, Emaco N 5200.

• The third degree of destruction is the appearance of rust and cracks up to 0.2 mm. The maximum depth of damage is 40 mm.

For such work, it is suitable: Emaco S 488 PG, EMACO S 488, EMACO S 5400.

• The fourth degree is cracks of more than 0.2 mm, the appearance of reinforcement, strong carbonization. The maximum depth of damage is 10 cm.

For such work, it is suitable: EMACO T1100 TIX, EMACO S 466, EMACO S560FR.

• The fifth degree is the strongest destruction: the exposures of aggregates and reinforcement, the presence of deep chips. The depth of damage is more than 20 cm.

Corrosion reinforcement protection - Emaco Nanocrete Ap,

The non -shaped mixture is Emaco a 640.

Emaco repair mixtures for concrete Price: from 13 to 26 $ per 25 kg.

2. The repair mixture for concrete Birsss (Russia) is designed to restore concrete bases and structures.

Repair mixtures Birsss 28, Birsss 29, Birsss 30, Birsss Zones - are great for repairing concrete damage to the first degree.

The restorative mixtures Birsss 30 C1, Birsss 58 C1, Birsss 59 C2 will cope with the second degree of damage.

For the third degree of damage, Birsss 59C3, Birsss 59 c.

BIRSS 600 WRC, Birsss Concrete, Birss RBM - will cope with the fourth degree of damage.

Birsss RSM of various series will help restore concrete surfaces of the fifth degree of damage.

The main advantages of using Birsss repair mixtures:

• high level of adhesion;
• water resistance;
• vapor permeability;
• Saltness;
• frost resistance;
• adhesion strength;
• elasticity and density;
• resistance before shrinkage;
• wear resistance.

Price: from $ 6 per 50 kg.

3. The repair mixture for concrete Bars Consolit (Russia) is characterized by the lack of shrinkage, reliability and quick hardening.

Advantages of using Bars Consolit:

• convenience and ease of work;
• Suitable for the restoration of both vertical and horizontal surfaces;
• High level of adhesion to the old concrete coating.

Concrete mixtures console Bars are divided into bulk and tixotropic.

The first group includes:

Consolit Bars 102 B45 - applied to the surface with a layer of 2 to 4 cm. It is designed to restore horizontal concrete surfaces. Contains unsaturation components and reinforcing fibers.

Price: $ 13 per 30 kg.

Consolit Bars 112 B30 - layer thickness 1.5-4 cm. Quickly hardens and is applied only to horizontal surfaces.

Price: $ 12 per 30 kg.

Consolit Bars 114 B60 - applied to horizontal surfaces, the slope angle of which does not exceed four percent. The thickness of the application is 1.5-4 cm.

Price: $ 15 per 30 kg.

The second group belongs to:

Consolit Bars 111 B30 - used to repair walls. It is characterized by the presence in the composition of non -shaped cement.

Price: $ 15 per 30 kg.

Consolit Bars 113 B60 - contains reinforcing fibers. Provides the strength and durability of concrete structures.

Price: $ 14 per 30 kg.

Consolit Bars 115 V50 is a finishing repair mixture that will perfectly cope with cracks and damage on the walls, ceiling or other sloppy surfaces.

Price: $ 18 per 30 kg.

To eliminate water leaks in concrete, use the console Bars 100. This mixture has additional strength and expansion functions.

Price: $ 21 per 30 kg.

4. The Italian repair mixture for concrete Mapegrout Thixotropic has good reviews among buyers.

Appointment:

• repair and restoration of both horizontal and vertical concrete surfaces;
• repair of railway and roads;
• The restoration of water channels and surfaces, which are in constant contact with water.

Advantages:

• application without installation of formwork;
• high level of adhesion;
• vapor permeability;
• water resistance;
• strength;
• lack of formation of cracks.

Price: $ 21 per 25 kg.

5. The repair concrete mixture Ceresit CX5 - has high properties in the restoration of various concrete bases. After applying, an unsaturated, water and frost-resistant cork is formed, which reliably seals all leaks or cracks.

Price: $ 41 per 25 kg.

6. Thomsit RS 88 - the repair mixture is applied to the surface with a layer of 1 to 10 cm, and is used only indoors.

Advantages:

• hardens within one hour;
• has high adhesion;
• convenient to use;
• vapor permeable
• Strong.

Field of use:

• repair of vertical and horizontal surfaces indoors;
• restoration of monolithic stairs;
• Alignment of the sexes, including warm ones.

Price: $ 20 per 25 kg.

7. Geolite 40 - provides a homogeneous restoration of concrete bases.

One layer of this mixture provides a passivation of reinforcement, restoration of concrete, alignment of the surface and protection from chemical and biological influences.

Advantages:

• hardening for 40 minutes;
• Within one day, a complete restoration of the structure is performed;
• full restoration of concrete;
• strength and complete adhesion with concrete.

Price: $ 58 per 25 kg.