Epoxy Adhesive For Concrete Bonding

The CBA™ (Concrete bonding adhesive) is a specialized two-component product designed to establish a solid and lasting bond between new and old concrete, enabling the reconstruction of structures within indoor and outdoor building areas. This innovative solution exhibits a certain moisture tolerance level during the initial and hardening stages yet becomes completely insoluble in water once fully hardened. The product comes conveniently pre-mixed and is available in specific weights for ease of use. Notably, its adhesion strength surpasses the tensile strength of concrete, ensuring a reliable connection. This unique resin does not shrink and exerts no additional stress on the existing concrete.


PRODUCT DESCRIPTION

CBA™, short for Concrete Bonding Adhesive, is a high-quality binder formulated explicitly for effectively bonding fresh cementitious materials to various surfaces. This versatile adhesive is suitable for creating strong connections between new concrete and a wide range of materials, including concrete, stone, wood, steel, ceramic, and brick.
When using CBA™, it is essential to apply it to clean, durable surfaces free from contaminants. This adhesive is particularly useful for bonding new concrete to existing surfaces such as epoxy-based concrete, steel, brick, glazed tile, ceramic, mosaic, and concrete floors.
With its exceptional adhesion properties, CBA™ enables reliable and long-lasting bonds, making it ideal for reinforcing structures, repairing damaged concrete surfaces, and seamlessly integrating different flooring materials. Its compatibility with various substrates makes it a preferred choice among construction professionals seeking reliable and efficient bonding solutions.
By utilizing CBA™, you can achieve strong and durable connections between different materials, significantly enhancing your construction projects’ longevity and structural integrity.

Features of the Product:

  • Excellent adhesion to concrete and most building materials
  •  Achieves excellent initial and final resistances
  •  Demonstrates good tensile strength
  •  Offers stability against impact and wear
  •  Compatible with both dry and wet substrates
  •  Exhibits good moisturizing properties and the ability to impregnate woven and non-woven fibers
  •  Possesses low concentration and high penetrating power
  •  Has an insignificant smell and is safe for users
  •  Allows for easy mixing and provides a long working time
  •  Can be applied with a roller or brush.

Which factors affect the price of CBA™?

Several factors can influence the price of CBA (Concrete Bonding Adhesive):

  • Quality and Brand:

Established brands known for high-quality materials may have higher-priced CBAs due to their reputation and investments in research and development.

  • Product Formulation:

CBAs with specialized formulations, such as additives for faster curing or increased bond strength, may have a higher price point.

  • Packaging and Quantity:

Larger quantities or bulk packaging options generally cost less per unit than smaller packages or specialized packaging formats.

  • Market Demand:

Supply and demand dynamics in the construction industry can impact CBA prices, with high demand potentially leading to price increases.

  • Distribution and Location:

Factors like shipping costs, distance to the market, and local market conditions can affect the overall pricing of CBAs.
Considering these factors when assessing CBA prices allows for informed decision-making, balancing both cost and quality.

Features


  • Excellent adhesion to concrete and most building materials
  • Achieves excellent initial and final resistance
    Demonstrates good tensile strength
  • It offers stability against impact and wear
    Compatible with both dry and wet substrates
    Exhibits good moisturizing properties and the
  • ability to impregnate woven and non-woven fibers
  • Possesses low concentration and high penetrating power
  • It has an insignificant smell and is safe for users.
  • It allows for easy mixing and provides a long working time.
  • It can be applied with a roller or brush.

Applications


  •  Adhesion of fresh concrete or mortar to hardened concrete in vertical and horizontal applications.
  •  Bonding of precast hardened concrete to existing horizontal concrete.
  •  Suitable for various construction applications, including buildings, roads, bridges, factories, etc.
  •  Compatible with both dry and damp surfaces.
  •  Suitable for internal and external use.
  •  Compatible with reinforced concrete structures.
  •  Can be used for planting steel rebar in wet holes.
  •  Used as a binder to cover or adjust the height of columns.
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Packaging


Colour


technical specifications

Physical Properties

Appearance of the product

liquid

Initial setting time

6 hours

final setting time

7 days

Pot life

4 hours

Operating temperature

-35 to 65 ℃‎

Mechanical Properties
Mixing ratio

A:B=100:13

density

1.55Kg/L

compressive strength

60MPa

Tensile strength

20MPa

Adhesion stability

2.5MPa

Flexural strength

30MPa

For Engineers

Here is a summarized list of recommendations for engineers working with CBA™ (Concrete Bonding Adhesive):

  • Surface Preparation: Ensure surfaces are clean, prepared, and contaminant-free.
  • Follow the Manufacturer’s Instructions: Adhere to instructions for proper application, mixing ratios, and curing times.
  • Test Compatibility: Conduct small-scale compatibility tests before large-scale applications.
  •  Use Appropriate Tools and Equipment: Select suitable tools for application, such as brushes, rollers, or trowels.
  •  Adhere to Safety Precautions: Wear protective gear and ensure proper ventilation.
  •  Consider Environmental Conditions: Consider temperature, humidity, and air circulation during application.
  • Implement Quality Control and Inspection: Regularly inspect work for necessary adjustments or touch-ups.
  •  Consult Manufacturer or Experts: Seek guidance from technical support or experienced professionals when needed.
For Contractors
  •  Prepare the Surface: Ensure thorough cleaning and removal of loose materials or contaminants from the surface before applying CBA™.
  •  Follow the Manufacturer’s Instructions: Adhere to the recommended guidelines provided by the manufacturer for proper mixing ratios, application techniques, and curing times.
  •  Conduct Compatibility Tests: Test the compatibility of CBA™ with the specific materials and substrates involved by performing small-scale tests before full-scale application.
  • Use Appropriate Tools and Equipment: Use the right tools, such as brushes, rollers, or spray equipment, for precise and efficient application of CBA™.
  •  Prioritize Safety: Take necessary safety precautions, including wearing appropriate protective gear and ensuring proper ventilation during the application process.
  • Consider Environmental Factors: Consider factors like temperature, humidity, and air circulation to ensure optimal conditions for the application and curing of CBA™.
  •  Implement Quality Control: Regularly inspect the work to ensure proper bonding and application of CBA™, making necessary adjustments or touch-ups.
  •  Seek Expert Advice: Consult the manufacturer’s technical support or seek guidance from experienced professionals for any specific challenges or complex projects.
Application Instructions

When applying CBA™ (Concrete Bonding Adhesive), following proper application instructions for optimal results is important. Here are the general application guidelines:

  •  Surface Preparation: Ensure the surface is clean and properly prepared, free from loose materials. Remove any dirt, dust, oil, grease, or contaminants hindering adhesion.
  •  Mixing: Follow the manufacturer’s instructions for mixing CBA™. Use the recommended mixing ratios and ensure thorough mixing to achieve a uniform consistency.
  • Application Method: CBA™ can be applied using a brush, roller, or trowel, depending on the project’s specific requirements. Choose the most suitable method for the surface and desired application thickness.
  •  Apply Evenly: Apply CBA™ evenly onto the prepared surface, ensuring complete coverage. Avoid leaving any gaps or thin spots that may compromise the bonding strength.
  • Working Time: Take into account the working time of CBA™. Apply the adhesive within the recommended time frame to ensure proper bonding. Avoid applying CBA™ beyond its operating time, as it may affect adhesion.
  •  Bonding Fresh Concrete: When bonding fresh concrete to hardened concrete or other surfaces, apply CBA™ to the fresh and receiving surfaces. Ensure that both surfaces are coated adequately before joining them together.
  • Curing: Follow the curing instructions provided by the manufacturer. Allow sufficient curing time for the adhesive to strengthen before subjecting it to load or further construction activities.
  •  Clean Up: Clean tools and equipment immediately after use. CBA™ can be challenging to remove once it has hardened, so cleaning up promptly using the appropriate cleaning agents or solvents is essential.
Guide to Quality Control (QC)

 Here is a summarized list of quality control measures for CBA™ (Concrete Bonding Adhesive):

  • Inspection of Materials
    Verify product condition, expiration date, and specifications.
  •  Surface Preparation Check
    Ensure surfaces are properly cleaned and prepared.
  • Adhesion Testing
    Perform tests to verify bonding strength.
  • Mixing and Application
    Monitor proper mixing ratios and even application.
  • Coverage and Bond Inspection
    Check for complete coverage and proper bonding.
  • Curing time
    Record and monitor curing time.
  • Durability and Performance Testing
    Conduct tests to assess long-term performance.
  •  Documentation and Recordkeeping
    Maintain detailed records of quality control activities.
  •  Ongoing Monitoring
    Continuously monitor bonded surfaces for performance evaluation.

technical documents

Technical Data Sheet (TDS)

Download

Safety Data Sheet (SDS)

Download

Drawings

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Photo Gallery

Frequently Asked Questions

What is the usage of connecting new concrete to old concrete?

When there is a delay in concreting and a part of the concrete hardens earlier, standard conditions must be provided to connect the previous concrete with the new concrete; For this purpose, as well as for the cohesion of different parts of concrete, concrete bonding glue is used.

What is the physical property of concrete bonding glue?

This product tolerates some moisture before and during hardening, but it is insoluble in water after hardening.

What are the characteristics of concrete bonding adhesives?

Concrete bonding adhesives do not shrink and do not add any stress to the concrete.

Are concrete bonding adhesives used only for this purpose?

No, these adhesives are also suitable for planting steel bars.

What is the weight of concrete bonding adhesives?

The specific weight of the mixture of these adhesives is 1.55 Kg/L.

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