Concrete Restoration
Description
Concrete Restoration
Concrete restoration based on cement and fine aggregates, composed of polypropylene fibers and copolymer resins is formulated and produced which can be easily used after mixing with water. This product has a high adhesion to a variety of concrete and cement surfaces and has long resistance and durability.
Features:
- Thermal expansion coefficient equal to cement and concrete surfaces
- Has good elasticity and elasticity
- Ability to achieve premature mechanical resistance
Applications:
- Ability to repair and repair the interior and exterior surfaces of the building
- Ability to leveling and repairing porous surfaces
- Possibility to implement a complete coating layer on the concrete surface to create a beautiful surface and exposis
Technical specification table :
| physical state | powder |
| Color | Gray |
| Special Weight | 1/5±%5 gr/cm3 |
| Standard | ASTM C1583 – BS EN 12636 |
| Chlorine ion | does not have |
| Ability to liquidate | in the water |
Package:
20kg bag
Product Description – Concrete Repair Powder
Damage and warping of the concrete surface is a constant problem in the construction of concrete and cement surfaces, which is caused by various factors such as part of the concrete peeling off due to adhesion to the mold surface during mold removal, part of the concrete surface being destroyed as a result of reinforcement corrosion, poor quality of the concrete or the concreting process resulting in damage or warping of the surface, impact on the surface, improper curing of the concrete, etc. For this purpose, a mortar is needed for surface repairs that, in addition to being made of concrete, also has favorable adhesion and granulation. The ready-made cement-based repair mortar is suitable for repairing and restoring many concrete surfaces and repairing the interior and exterior surfaces of buildings due to its special formulation and structure. The concrete repair mortar is modeled and produced based on cement and fine-grained aggregates, polypropylene fibers, and copolymer resins, which will be easily ready for use after mixing with water. This exposed concrete repair mortar has high adhesion to all types of concrete and cement surfaces due to its special formulation and is durable and long-lasting. The concrete repair mortar is non-shrinking and will not develop cracks due to shrinkage or shrinkage after application. Also, using this concrete repair mortar creates a uniform and high-quality surface with a soft and uniform texture.
In general, this cementitious surface repair mortar is able to help repair concrete defects, improve appearance, restore structural integrity, increase durability and extend the life of the structure. This cosmetic concrete repairer is suitable and used for a variety of structures including buildings, bridges, infrastructure and superstructures. This concrete repair mortar can be used to repair concrete surfaces both vertically and horizontally and plays an important role in maintaining and extending the life of concrete structures, ensuring their safety and longevity.
Powdered concrete repair packaging
20 kg bag
Concrete repair agent consumption rate
The amount of concrete repair agent used varies depending on the working environment conditions and the extent of surface damage, but typically, about 1.5 kilograms of repair agent is required to cover one square meter with a thickness of 1 mm.
Cement-based concrete repair maintenance
Duration: One year in original packaging.
Conditions: Away from cold and frost, heat and direct and prolonged sunlight.
Best storage temperature: +10 to +30 degrees
Important safety issues regarding cementitious repair powder
- In case of contact with skin or eyes, rinse immediately with water.
- This mortar is not a toxic or environmentally hazardous material.
- Wear gloves, goggles, and a mask when using.
- If swallowed, seek medical attention immediately.
How to use cement concrete repair agent
- If the rebars inside the concrete are visible, the back of the rebars must be cleared so that there is at least 1 cm of space around the rebars for rust removal and filling with concrete repair mortar.
- The surface to be treated with concrete repair agent must be free of any loose spots, grease, or contamination.
- To apply the repair, the underlying surface must be scratched and roughened.
- The surface to be treated should be saturated with clean water.
- If the rebars are corroded, remove the rust with a brush or sandblaster.
- The surface of the rebars should be covered with a layer of primer, and if there are severe aggressive environmental conditions, the surface of the reinforcements should be covered with a layer of zinc-rich epoxy primer.
- It is recommended to apply a layer of acrylic primer to the desired surface to increase the adhesion coefficient.
- For each 20 kg bag of concrete repair powder, 3.5 to 4.5 liters of water are required. Make sure that the powder is always added to the water. For this purpose, choose a suitable container and pour water into it, and gradually add the powder while the electric mixer (drill + blade) is on, and continue mixing until a uniform and homogeneous mortar is obtained.
- The repair mortar must be compacted and compacted behind the rebar.
- Apply the repair mortar to the surface with a trowel, spatula, or spray.
- Important note: Always mix a quantity of powder with mortar that can be used within 30 minutes at most.
- The maximum thickness of concrete repair mortar applied to high-rise surfaces is 40 mm.
- Avoid applying dried mortar.
- The maximum allowable thickness of concrete repair mortar on horizontal and vertical surfaces is 50 mm and the minimum is 10 mm.
- If the repair is done in two or more layers, the interval between the two layers should be done after the initial setting and about three hours after the previous layer is applied. It is also recommended to slightly roughen the bottom layer with a spatula before applying the next layer.
- During the initial hours of application, the applied mortar should be protected from direct sunlight, frost, wind, and any aggressive environmental factors, and allowed to cure for up to 48 hours. If possible, it should be protected with a wet, plastic bag in the event of unusual environmental conditions.
- To increase adhesion and improve properties, it is recommended to add 2 kg of concrete adhesive for each 20 kg bag of repair powder.
Properties and effects of cement-based concrete repair powder
- Excellent formability and flowability
- Ready-to-use mortar without the need to add cement or aggregate
- Has a thermal expansion coefficient equal to cement and concrete surfaces.
- High mechanical durability
- Creating a unified and high-quality surface, in terms of the soft and uniform texture of the product
- Reducing the costs of sealing concrete surfaces
- No risk of corrosion for steel
- No shrinkage or shrinkage of the mortar after setting.
- High resistance to thawing and freezing cycles
- Flexibility and proper elasticity
- Excellent adhesion to substrate surfaces
- Increasing the reliability of structural sealing
- Achieving early mechanical strengths
- Ability to bridge surface cracks
- High stability against destructive environmental factors
- Compatibility with hardened concrete
- Available in different colors
- Easy to apply and mix with water
- Can be applied by spraying and troweling.
Applications of cement-based concrete repair agents
- Suitable for repairing damage to substrate surfaces before applying surface sealants.
- Can be used for repairing and restoring interior and exterior surfaces of buildings.
- Suitable for repairing and restoring concrete floors.
- Repairing surface damage before installing decorative materials or painting
- Can be used to prepare surfaces before sealing and flooring
- Suitable for filling non-structural joints and cracks
- Leveling and repairing porous surfaces (Cermo)
- Reconstruction and repair of surface irregularities caused by errors in molding and demoulding
- Ability to fill holes left by the passage of the belt or between the belts in the concrete
- Suitable for performing muscle tensioning in water structures
- Suitable for application as a base for surfaces that require protective coatings.
- Possibility of applying a complete coating layer on the concrete surface to create a beautiful and exposed surface
- Repairing damages and cracks in prefabricated structures
- Suitable for filling gaps and joints between two concrete pieces.
- Repair and restoration of all types of concrete surfaces, including water and sewage tanks, concrete columns and beams, marine facilities, water transfer channels, etc.
Table of physical and chemical properties of concrete repair agent
| Title | Feature |
| Mode | Powder |
| Color | Gray |
| Specific gravity | 1.5±%5gr/cm3 |
| Standard | ASTM C1583 – BS EN12636 |
| Chlorine ion | No |
| Dissolvability | In the water |
Mechanism of concrete repair effect
The ready-made concrete repair mortar is very soft and fine-grained and is made of micronized silica, which is why it has good troweling and spreading properties, and due to the high percentage of cement and copolymer resin, it has high adhesion to the substrate surfaces. This concrete repair powder is resistant to the penetration of liquids and corrosive materials after application, and for this reason, the mortar is suitable for repairing damage to the surfaces intended for sealing. The presence of polypropylene fibers in the concrete repair structure will also increase the mechanical resistance of the repair mortar and also reinforce it. It should be noted that the use of epoxy repair mortars on cement and concrete surfaces is not suitable for repairing concrete or cement surfaces with a high depth of damage due to the difference in thermal expansion coefficient. Because if epoxy repair materials are used, we will witness cracking and separation in high thicknesses and volumes, and it is necessary to carry out the repair operation with a product that is very similar in structure to concrete.
Concrete repair standard
ASTM C1583 – BS EN 12636 standard
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