Concrete admixture

VF 36 Crystalline Self-healing Waterproofing Admixture

Crack self-healing function; repairs micro-cracks below 0.3 mm; significantly improves impermeability pressure resistance.

Appearance: White Crystalline Powder

Category Concrete admixture

Advanced Construction Chemical Supplies for Durable Waterproof Structures

Crystalline self-healing waterproofing admixture is a high-performance solution designed for modern construction chemical supplies used in critical infrastructure projects. This advanced chemical admixtures for concrete technology reacts with cement hydration products to form insoluble crystalline structures inside concrete pores and micro-cracks. These crystals block water penetration channels such as capillary pores and micro-cracks, improving density, impermeability, and long-term durability of concrete structures. As part of next-generation concrete admixture chemical systems, it is widely used by engineers, contractors, and concrete admixture manufacturers for long-lasting waterproof performance.

How It Works

Once added during concrete mixing, the active chemicals remain dormant inside the structure. When water enters through cracks or pores, the materials react with moisture and unhydrated cement particles. This reaction forms insoluble crystalline growth that expands inside voids and micro-cracks, permanently blocking water pathways and enabling long-term self-healing performance.

Applications in Infrastructure

This advanced chemical admixtures concrete solution is widely used in demanding waterproof construction environments such as:

Tunnels and subway systems
Hydropower stations
Reservoirs and water storage structures
Dams and irrigation systems
Bridges and transport infrastructure
Underground basements and foundations
Marine and coastal engineering projects

It is especially suitable for projects requiring long-term resistance against water pressure and aggressive environmental conditions.

Key Benefits

Self-Healing Crack Repair

Repairs micro-cracks up to 0.3mm by forming internal crystalline growth.

Superior Waterproofing

Improves concrete impermeability and prevents water seepage under high pressure.

Enhanced Durability

Protects against chloride ions, sulfate attack, and environmental corrosion.

Structural Strength Stability

Maintains compressive strength and improves long-term structural integrity.

Cost Efficiency

Reduces dependency on external waterproofing systems, lowering total project cost.

Easy Application

Directly added during mixing without requiring special equipment.

Technical Data

Item	Performance Index
Water Reduction Rate	< 8%
Initial Setting Time Difference	≥ 90 min
Compressive Strength (7d)	≥ 100%
Compressive Strength (28d)	≥ 100%
Shrinkage Ratio (28d)	≤ 125%
28d Impermeability Pressure Ratio	≥ 200%
56d Impermeability Pressure Ratio	≥ 150%

Application Guidelines

Recommended Dosage

The standard dosage is 2.0% to 4.0% of cementitious material weight. Recommended: 3.0%

Mixing Requirements

Extend mixing time for uniform dispersion
Ensure proper vibration during pouring
Maintain strict mix design control

Packaging & Storage

Packaging Options

Valve bags
Bulk tanker supply
Custom packaging solutions available

Storage Conditions

Store in dry, moisture-proof conditions
Protect from frost and humidity

Shelf Life

6 months under proper storage. Product can still be used after testing if no caking occurs.

Safety Information

This product is non-flammable, non-explosive, and environmentally safe. It contains no formaldehyde.

Handling Guidelines

Avoid skin and eye contact
Use gloves and masks during handling
Do not ingest

First Aid

Skin contact: Wash with clean water
Eye contact: Rinse immediately and seek medical help
Ingestion: Seek medical attention immediately

FAQs

What is crystalline self-healing waterproofing admixture?

It is a concrete additive that forms crystals inside cracks to block water and improve durability.

How does it work?

It reacts with water and cement hydration products to form insoluble crystals that seal micro-cracks.

Where is it used?

It is used in tunnels, dams, reservoirs, basements, and other waterproof concrete structures.

What is the dosage?

Typically 2%–4% of cementitious material, with 3% recommended.

Can it repair cracks?

Yes, it can repair cracks up to 0.3mm through crystalline growth.

Contact for Bulk Orders & Technical Support

We supply high-quality construction chemical supplies for global infrastructure projects. As a trusted concrete admixture factory, we support contractors, distributors, and engineering companies with technical guidance and bulk supply solutions.

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Flexible Payment & Global Delivery Solutions

Backed by large-scale production capacity and strong technical strength, Sichuan Lujia Sitong Technology Development Co., Ltd. ensures stable supply and efficient delivery to customers worldwide.

We support multiple international trade terms and flexible payment methods to meet diverse procurement needs.

Payment Options:

T/T, L/C, OA, and other negotiated methods

Shipping Coverage:

Worldwide

Transportation Terms:

Sea freight by CIF, FOB, CFR, and other Incoterms

Lead Time:

7–14 days depending on order volume and specifications

Packaging:

• 25kg moisture-proof bags • 500kg / 600kg palletized packaging • Customized packaging available

Minimum Order Quantity (MOQ):

500kg

Request Your Free Product Sample

To help you better evaluate our product quality and performance, we are pleased to offer free samples of our construction chemical solutions. Experience real results before placing bulk orders — with worldwide delivery available.

What You Will Receive:

✔ Product Technical Data Sheet (TDS) & brochure
✔ 200–600g sample (depending on product type)
✔ Fast global shipping via DHL or FedEx
✔ Technical consultation & formulation support
✔ Zero sample cost (shipping may vary by region)

Why Try Our Samples?

• Verify performance in real applications
• Test compatibility with your materials
• Reduce procurement risk
• Get expert technical guidance

Frequently Asked Questions

1. What are concrete admixtures used for?

Concrete admixtures are added to concrete mixes to improve performance such as strength, workability, waterproofing, durability, setting time, and crack resistance. They help achieve better construction quality and efficiency under different project conditions.

2. Can your admixtures be used with standard concrete materials?

Yes. Our products are compatible with most types of cement, aggregates, and conventional concrete mix designs. Technical support is available to ensure optimal performance for your specific application.

3. Do you provide technical data sheets (TDS)?

Yes. Each product is supplied with a detailed Technical Data Sheet including dosage, application guidelines, storage conditions, and safety information.

4. Can I request samples before placing a bulk order?

Absolutely. We offer free product samples for testing and evaluation. Samples are typically 200–600g depending on the product type.

5. What is the typical dosage of your admixtures?

Dosage varies depending on the product and application, usually ranging from 0.5% to 2% by cement weight. Exact recommendations are provided in the product TDS.

6. Do you offer customized formulations?

Yes. Our technical team can adjust formulations based on your project requirements, climate conditions, and performance goals.

7. What packaging options are available?

Standard packaging is 25kg bags, with palletized options (500kg–600kg) and customized packaging available upon request.

8. How long is the shelf life?

Most products have a shelf life of 12 months when stored in a dry, cool, and sealed environment.