What Is JDJSJ-AK 01 Polycarboxylate Superplasticizer Powder and How Does It Enhance Concrete?
Technical Introduction
JDJSJ-AK 01 is a high-performance polycarboxylate-based superplasticizer in powder form designed to significantly improve the workability of concrete mixtures while reducing water content. Polycarboxylate superplasticizers work by dispersing cement particles through steric hindrance and electrostatic repulsion, resulting in excellent fluidity and flow retention without compromising strength. The powdered form offers convenience in transportation, storage, and dosing, and is easily soluble in water to produce ready-to-use liquid admixtures or direct addition into dry mixes.
Applications
High-Performance Concrete: Enables low water-cement ratios for superior strength and durability.
Ready-Mix Concrete: Enhances pumpability and placement with consistent workability.
Precast Concrete: Improves surface finish and early strength gain.
Self-Compacting Concrete (SCC): Provides excellent flow without segregation or bleeding.
Infrastructure Projects: Bridges, tunnels, highways requiring high durability and strength.
Shotcrete: Improves adhesion and reduces rebound in sprayed concrete.
Advantages
High Water Reduction: Reduces water demand by 20-30%, improving concrete strength and durability.
Excellent Workability: Provides fluidity and slump retention for extended periods.
Powder Convenience: Easy to handle, store, and dose compared to liquid superplasticizers.
Low Dosage: Effective at small dosages, reducing cost and impact on mix design.
Compatibility: Suitable with various cement types and supplementary cementitious materials (SCMs).
Specifications (Typical Parameters)
| Parameter | Description | Typical Value |
|---|---|---|
| Appearance | Physical state | Light beige to off-white powder |
| Solid Content | Active ingredient concentration | ≥ 90% |
| pH (1% aqueous solution) | Alkalinity | 5 - 7 |
| Water Reduction Rate | Efficiency in water reduction | 20% - 30% |
| Dosage | Recommended usage | 0.1% - 0.5% by weight of cement |
| Solubility | Water solubility | Easily soluble |
| Chloride Content | Maximum allowed | < 0.1% |
FAQ
Q1: How does JDJSJ-AK 01 improve concrete workability?
A: It disperses cement particles, reducing water demand and increasing flow without segregation.
Q2: Can this powder be mixed directly into dry concrete?
A: Yes, it dissolves quickly and can be added to dry mixes or pre-dissolved in water.
Q3: Does it affect setting time?
A: It generally has little effect on setting time but can be combined with retarders if needed.
Q4: Is JDJSJ-AK 01 compatible with all cement types?
A: Yes, it works well with ordinary Portland cement, blended cements, and SCMs.
Q5: How should this product be stored?
A: Store in a cool, dry place, sealed from moisture to prevent clumping.
Free Consultation
Name*
E-Mail*
TEL
Message*