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Construction Chemistry
Polycarboxylate Superplasticizer
Formula:
[-CH 2-C (R 1) (COOM)−]n−co−[−CH 2−C(R 2) (COO −(CH 2, CH2O)m−R 3)-]p
GOST/CAS:
CAS 27599-56-0 / CAS 57516-88-8
PCE PC 331 (Polycarboxylate Superplasticizer, powder form) is a high-performance, eco-friendly, next-generation water-reducing agent based on polycarboxylate ether. The product is a fine, white or light-yellow powder with excellent water solubility. Due to its unique molecular structure with "comb-like" side chains, PCE PC 331 provides a powerful steric hindrance (repulsion) effect between cement particles. This radically reduces the water demand of concrete and mortar mixes, delivering extreme slump retention, high early strength, and excellent workability without segregation. It is an indispensable raw material for the production of high-strength concrete, self-compacting concrete (SCC), and premium-grade dry-mix mortars.
Applications
High-Performance Concrete: Production of high-strength ready-mix concrete (B45 and above), self-compacting concrete (SCC), and waterproof/hydrotechnical concrete. It significantly reduces the water-to-cement ratio (W/C) while maintaining excellent workability.
Dry-Mix Mortars: Formulating self-leveling floors, screeds, grouts, high-adhesion tile adhesives, and non-shrink repair mortars to improve their flowability and final surface smoothness.
Precast Concrete (Concrete Products): Used in precast concrete plants. It accelerates early strength development, speeding up formwork turnaround and reducing or entirely eliminating the need for steam curing (heat-moisture treatment).
Complex and Heavily Reinforced Structures: Concreting of foundations, bridge piers, tunnels, and high-rise buildings where easy pumpability of the concrete mix over long distances and heights is strictly required.
Key Advantages
High Water-Reducing Capability: Provides a water reduction rate of 25% to 40%, which guarantees ultra-high density, impermeability, and long-term durability of the hardened concrete.
Slump Retention and Stability: Effectively prevents rapid loss of concrete workability over time, ensuring easy transportation and placement even in hot climates.
Low Dosage & Excellent Compatibility: Highly efficient at minimal dosages (typically 0.15% to 0.5% by weight of cementitious materials) and perfectly compatible with various cement types, silica fume, and fly ash.
Eco-Friendly and Safe: A fully biodegradable product completely free of chlorides (does not cause reinforcement corrosion), formaldehydes, and ammonia. Safe for the environment and human health.
Storage & Transportation
- Store in dry, cool, and well-ventilated warehouses, protected from direct sunlight, in tightly sealed original packaging.
- Recommended storage temperature range: -5°C to +35°C. Avoid excessive pressure during stacking (limit stack height) to prevent powder caking.
- Avoid any contact with moisture or humidity, as the product is highly hygroscopic.
- Transportation is permitted by all types of covered transport while maintaining temperature regulations. The material is classified as non-hazardous. Shelf life is 1 year from the date of manufacture, provided original packaging integrity is maintained.
Frequently bought together
Technical Specifications
Appearance
White or light-yellow fine powder
Active Ingredient Content
≥ 98.0%
Bulk Density
500 - 700 (kg/m}
Moisture Content
≤ 4.0%
pH (10% water solution)
6.0 - 8.0
Supply info
- Industry-standard multi-layer paper or kraft bags with a sealed polyethylene inner liner at 25 kg net weight.
- Big-Bags (FIBC) at 500 kg / 650 kg for large-scale industrial manufacturing plants.
- Small, airtight sample pouches at 1 kg / 5 kg (for laboratory testing and pilot trials).