Waterproofing Concrete Adhesive

Waterproofing Concrete Adhesive

Description of Waterproofing Concrete Adhesive

Waterproofing concrete adhesive addresses one of the significant challenges in concrete construction, which is the permeability of the components in the concrete mixture. The use of copolymer resins has long been applied in advanced countries to enhance the adhesion of the constituent particles of mortar or concrete, as well as to fill the voids between aggregates. This practice leads to increased concrete density and, consequently, reduced permeability. Waterproofing concrete adhesive is a viscous liquid polymer product with an emulsified state based on copolymer resins. This adhesive, commercially known as Waterproofing Concrete Adhesive, is formulated and produced for this purpose. Generally, it is a colloidal solution of various polymers in water, capable of improving the tensile and flexural strength and durability of concrete. This product can also be used to bond new concrete to old concrete, as well as to enhance the adhesion of repair mortars to the underlying surfaces. This adhesive can resolve issues caused by cold joints, which occur due to the lack of continuity in the concrete, temperature fluctuations, delays in the preparation and transport of concrete, etc. Additionally, using this adhesive helps preserve the quality of concrete in alkaline environments.

In general, this product is specifically designed to bond materials in construction and repair applications where exposure to water is a concern. It creates durable bonds on concrete and other masonry materials. Ultimately, keep in mind that you should choose an adhesive based on your specific needs and environmental conditions.

Mechanism of Action of Waterproofing Concrete Adhesive

Waterproofing concrete adhesive is a synthetic copolymer that, when mixed and dispersed in the concrete mixture, enhances the adhesion of the concrete particles. Additionally, by forming a polymer film in the voids between aggregates, it reduces permeability by significantly filling these spaces once it dries in a plastic-like state. After the concrete hardens, the adhesive becomes completely dry and no longer dissolves in water.

Properties and Effects of Waterproofing Concrete Adhesive

• Increases tensile, abrasion, and flexural strength up to 2 times the usual strength.
• Significantly enhances the adhesion of the components of mortar or concrete.
• Maintains the quality of concrete in alkaline environments.
• Increases the adhesion of new concrete or mortar to old concrete or mortar.
• Prevents the formation of cold joints in concrete.
• Improves the impermeability of concrete against environmental factors.
• Provides suitable flexibility for mortar or concrete.
• Reduces shrinkage effects, thus preventing the formation of shrinkage cracks.
• Resistant to de-icing salts.
• Increases the compressive strength of concrete or mortar.
• Highly resistant to freeze-thaw cycles.

Applications of Waterproofing Concrete Adhesive

• Repairing surface damages.
• Suitable for mixing with powdered tile adhesive to enhance bonding.
• Producing and applying bonding concrete.
• Suitable for use as a primer for applying cement coatings.
• Suitable for making smooth mortars.
• Mixed with repair mortars to increase adhesion.
• Can be used to repair exposed concrete surfaces.
• Capable of waterproofing repair mortars.
• Enables bonding of new concrete or mortar to old concrete or mortar.

Physical and Chemical Properties of Waterproofing Concrete Adhesive:

• State: Viscous liquid
• Color: White
• Specific Gravity: 1 gr/cm³
• Standards: ASTM C1042, ASTM C1059
• Chloride Ion: None
• pH: Approximately 7
• Solubility: In water

Consumption Rate of Waterproofing Concrete Adhesive

The exact and suitable amount of waterproofing concrete adhesive to use depends on various factors such as surface roughness, type of cement, environmental temperature, amount of cement, type of materials used, and more. However, the typical usage of this adhesive is as follows:

• For adding to concrete to waterproof the interior, it is generally 5 to 9% of the cement weight.
• For adding to repair mortars, 3 to 5% of the cement weight can be used.
• For adding to concrete to enhance adhesion to old concrete and reduce permeability, 4 to 6% of the cement weight is recommended.

Application Method of Waterproofing Concrete Adhesive

• To Increase Surface Impermeability: The surface of the mortar or concrete should be clean and free from any dust or grease. Then, mix the adhesive with water in a 1:1 or 1:2 ratio. Afterward, apply it with a spray gun, brush, or roller in two coats, with an interval of 1 to 3 hours between each coat.
• For Use in Repair Work: The substrate for the repair work must be free from any loose parts, contamination, or grease. Then, apply a diluted layer of adhesive mixed with water as a primer. Add 3 to 5% of the cement weight to the repair mortar to improve its adhesive properties.
• To Increase Internal Impermeability: Mix this adhesive with water at a ratio of 1:3 to 1:5, then add the dry components of the mortar to the mixture. Once the work is completed, protect the concrete with curing materials for 5 days.
• For Bonding New Mortar to Old Concrete: The surface should be free from any contaminants, oils, paints, or loose materials. Then, apply a thick, dense layer of the adhesive to the old concrete surface. Add 4 to 6% of the cement weight of the adhesive to the new concrete mixture and apply it.

Safety of Waterproofing Concrete Adhesive

Waterproofing concrete adhesive is not considered toxic or hazardous to the environment. If it comes into contact with the eyes, immediately rinse with fresh water and seek medical attention. Avoid contact with the skin and eyes, and in case of ingestion, seek immediate medical help. Always wear gloves and safety goggles during application.

Storage of Waterproofing Concrete Adhesive

It has a shelf life of one year in its original packaging. The adhesive should be stored in a place away from freezing temperatures, excessive heat, and prolonged exposure to direct sunlight. The ideal storage temperature for the adhesive is between 10°C and 30°C.

Packaging of Waterproofing Concrete Adhesive

• 8 kg Bucket
• 3.5 kg Bucket
• 20 kg Bucket