Strength Concrete Adhesive

Strength Concrete Adhesive

CB27

Powerful Concrete Adhesive Based on Homopolymer Resins

Suitable for bonding new concrete to old concrete

Nano Strength Concrete Adhesive

In certain situations, concrete pouring might be interrupted, requiring continuation at a later stage after the initial concrete has fully set. This interruption weakens the concrete at the joint due to poor adhesion between the old and new layers, leading to reduced strength and increased permeability. Strength Concrete Adhesive is the ideal solution for bonding old concrete to new concrete and is also highly effective in repair works to improve the adhesion of repair mortar to the old surface. Additionally, when mixed with fresh concrete, it enhances particle adhesion and improves concrete properties.

This polymer-based adhesive is formulated from synthetic homopolymer resins, reacting effectively with water and cement in the concrete mix. It significantly increases tensile and flexural strength while improving the stability of concrete. Its primary feature is enhanced adhesion, which results in a denser concrete mix and reduced permeability. Using this adhesive also allows for a 5% reduction in the water-to-cement ratio.

Mechanism of Action

As a synthetic polymer, the adhesive disperses within the concrete mix, boosting the adhesion between concrete particles. It also forms a polymer film in the voids between aggregates, filling them after drying and significantly reducing permeability. Once the concrete sets, the adhesive fully dries and becomes insoluble in water.

Key Characteristics of a High-Quality Concrete Adhesive

To ensure the quality of a strength concrete adhesive, consider the following:

• Formulation: Must be made from water-based homopolymer or copolymer resins or a combination of both.
• Water Separation: In its container, the adhesive should not exhibit excessive water separation (more than the thickness of a fingertip). If excessive separation occurs, it may indicate an imbalance in formulation or a lack of thickeners and stabilizers.
• Absence of Fillers: The adhesive should not contain mineral powders like calcium carbonate or talc to increase viscosity. This can be tested by rubbing a small amount between fingers—if a gritty texture is felt, mineral powders may be present, reducing its effectiveness.

Properties and Benefits

✅ Enhances adhesion between concrete, stone, and masonry materials
✅ Reduces shrinkage and cracking by minimizing contraction
✅ Improves resistance to chemicals, abrasion, and tensile forces
✅ Increases compressive strength of concrete
✅ Reduces permeability, preventing water penetration
✅ Enhances durability and longevity of concrete
✅ Maintains strength in alkaline environments
✅ Prevents shrinkage cracks
✅ Allows for a 5% reduction in water consumption
✅ Enhances freeze-thaw resistance
✅ Improves resistance to de-icing salts
✅ Increases flexibility of concrete and mortar

Applications

Bonding new concrete to old concrete
Priming concrete surfaces before coatings
Waterproofing mortars and coatings
Improving adhesion of putty and fillers
Stone putty for filling pores after installation

Waterproofing structures like pools, tanks, and treatment plants
Repairing deep or surface concrete damage
Enhancing adhesion and reducing permeability in tile adhesives and grouts

Physical and Chemical Properties

Property	Value
Form	Thick Liquid
Color	White
Standards	ASTM C190, ASTM C1042, ASTM C1059
Specific Gravity	1.1 g/cm³
Chloride Content	None
Solubility	Water-soluble
pH	~7

Consumption Guidelines

Usage varies based on factors such as surface roughness, ambient temperature, cement type, and material composition. General recommendations:

• For internal waterproofing: 5–9% of cement weight
• For repair mortars: 3–5% of cement weight
• For bonding new to old concrete and reducing permeability: 4–6% of cement weight

Factors Affecting Price

The price of Strength Concrete Adhesive depends on:

• Type of resin used in formulation
• Solid content concentration
• Additional ingredients in the mix

For detailed pricing, please contact the Beton Plast sales team through the “Contact Us” section.

Usage Instructions

For Bonding New Concrete to Old Concrete:

1. Ensure the old concrete surface is free from contaminants such as paint, oil, grease, or loose particles.
2. Apply a thick layer of adhesive onto the old surface.
3. Add 4–6% of the adhesive by cement weight to the new concrete mix.

For Repairing Concrete Surfaces:

1. Apply a thin layer of adhesive to the repair area.
2. Mix 3–5% of the adhesive by cement weight into the repair mortar before application.

For Internal Concrete Waterproofing:

1. Mix adhesive and water in a 3:1 ratio before adding to the concrete mix.
2. Thoroughly mix for at least one minute per cubic meter of concrete.

Safety Precautions

Use gloves and safety goggles during application.

The product is non-toxic, non-flammable, and environmentally friendly.
Avoid direct contact with skin and eyes. If contact occurs, rinse immediately with clean water and seek medical attention.
If ingested, consult a doctor immediately.

Storage Conditions

Shelf life: 1 year in original sealed packaging

Storage temperature: +10°C to +30°C
Protect from freezing, extreme heat, and prolonged sun exposure

Packaging

Available sizes

• 3.5 kg bucket
• 8 kg bucket
• 20 kg bucket