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BC-KJ(III) Concrete Impermeable Hydrophobic Densifier

Brief Introduction

BC-KJ(III) concrete impermeable hydrophobic densifier is a concrete admixture with hydrophobic and densification functions. On one hand, it increases the hydrophobicity of concrete by changing the surface tension of internal capillary pores, thereby significantly reducing the water absorption rate of concrete. On the other hand, it refines the capillary pore structure of concrete and improves its compactness, thus reducing the chloride ion transmission rate. This product can reduce the water absorption and permeability of concrete under both pressurized and non-pressurized conditions, delay the penetration of corrosive media such as chloride ions into concrete structures, and reduce the risk of steel bar corrosion. It is applicable to concrete engineering in marine, nuclear power, bridge, tunnel and railway projects under environments such as corrosion and salt crystallization erosion.

Product Features

· No Adverse Effect on Concrete Workability: BC-KJ(III) has no negative impact on the workability of concrete and can improve its workability to a certain extent.

· Reduced Permeability to Corrosive Media: It can effectively improve the internal pore structure and pore properties of concrete.

· Enhanced Concrete Durability: Concrete mixed with BC-KJ(III) exhibits excellent freeze-thaw resistance, reduced transmission rate of media such as chloride ions, and improved impermeability.

· Non-toxic and Odorless: This product is non-toxic and has no irritating odor.

Technical Data

The following data represent typical properties of concrete mixed with this product and may vary slightly depending on the mix proportion.

 

Test Item

Performance Index

Bleeding Rate Ratio

≤50%

Setting Time Difference

≥-90min

Compressive Strength Ratio (3d, 7d, 28d)

≥100%

30min Water Absorption Ratio (7d)

≤60%

28d Electric Flux Ratio

≤75%

28d Chloride Ion Diffusion Coefficient Ratio (DRCM)

≤75%

Usage Method and Precautions

· Recommended Dosage: The common dosage is 3%~7% of the mass of cementitious materials, with a recommended dosage of 5%, which equally replaces the unit water consumption.

· Concrete Mix Proportion: The strength of concrete mixed with BC-KJ(III) shall not be lower than C40, and the water-binder ratio shall not exceed 0.45. If other admixtures need to be added for special projects, they must be tested before use.

· Construction Method: Stir evenly before use. Appropriately extend the mixing time when mixing concrete to ensure uniform mixing of materials.

· Concrete Curing: After pouring is completed, carry out moist curing for a certain period according to site conditions to achieve the best use effect.

Packaging and Storage

· Packaging: BC-KJ(III) is available in 200kg or 1000kg plastic drums. Specifications can be adjusted according to customer requirements, ensuring convenient loading, unloading and transportation.

· Storage: BC-KJ(III) shall be stored in a sealed, dry and cool place, with a shelf life of 6 months under sealed conditions.

Safety Precautions

· BC-KJ(III) is non-toxic, non-irritating, non-radioactive, non-flammable and non-explosive. It contains no formaldehyde and is environmentally friendly.

· For your personal safety, always wear protective gloves and safety goggles during handling and use of BC-KJ(III) to avoid direct skin contact. In case of accidental eye or skin contact, rinse immediately with plenty of clean water. Seek medical attention promptly if irritation persists.

 

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