Polycarboxylate superplasticizer is a high-performance concrete admixture and belongs to the third generation of superplasticizers. Its main components are polycarboxylate-based copolymers. It effectively disperses cement particles through a dual mechanism of steric hindrance and electrostatic repulsion. As a result, it significantly reduces the amount of mixing water while maintaining the concrete’s workability (slump), achieving a water reduction rate of typically 25–40%.
In construction, its primary functions include improving concrete strength and durability, lowering the water-cement ratio, enhancing workability, and making concrete easier to pump and place. It also reduces cement consumption, thereby lowering carbon emissions, and enables special properties such as self-compacting, high impermeability, and high freeze-thaw resistance. Polycarboxylate superplasticizer is widely used in modern concrete engineering, including high-rise buildings, bridges, tunnels, and precast concrete elements.
| Appearance | White Powder |
| Water Content(Powder) | ≤4.0% |
| Ph-value(20℃)（20% solution） | 7.0~8.0 |
| Total Alkali Content | ≤0.05% |
| Concrete Water Reduction Ratio | ≥30.0% |
| Concrete Air Content | ≤6.0% |
| Dosage Recommendation in relation to weight of binder | Cementious:0.16~0.30%
Gypsum: 0.05~0.2% |
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MOQ: 1000 kg.
Shipping Coverage: Global (Sea, Railway, Road, Airplane).
Packaging: 25 kg/bag.
Lead Time: 7-15 working days once receive the payment.
Pallets Weight: 600kg/Pallet (24 bags)
Pumped Concrete for Super High-Rise Buildings
Polycarboxylate superplasticizer, with its excellent flowability and slump retention, is widely used in pumped concrete construction for super high‑rise buildings. It effectively reduces pumping viscosity and improves pumping efficiency.
Bridge and Highway Engineering
As a core admixture in transportation infrastructure projects such as bridges and highways, this product significantly enhances the strength and durability of concrete.
Hydropower, Water Conservancy, and Nuclear Power Projects
It is suitable for special engineering projects that demand extremely high durability and impermeability, including hydropower, water conservancy, and nuclear power plants.
Precast Concrete Element Production
The early‑strength type of polycarboxylate superplasticizer is particularly suitable for manufacturing precast concrete elements such as pipes and piles. It not only improves the early strength of concrete but also does not compromise the later‑stage strength development.
Marine Engineering and Polar Low-Temperature Environments
Polycarboxylate superplasticizer meets the stringent performance requirements of marine engineering and polar low-temperature environments, exhibiting excellent durability under harsh conditions such as seawater corrosion and freeze‑thaw cycles.
HighStrength, High-Performance, and Self-Compacting Concrete
It is especially suitable for high-strength high-performance concrete, ultra-fluid self-leveling concrete (without vibration), and self-compacting concrete. It significantly improves concrete cohesion and solves problems of segregation and bleeding.
High Water Reduction Rate
The water reduction rate of polycarboxylate superplasticizer typically ranges from 25% to 45%, and for some premium products, it can exceed 40%. At a dosage of only one‑third to one‑quarter of that required for traditional naphthalene‑based superplasticizers, it achieves a higher water reduction effect.
Excellent Slump Retention
The product exhibits outstanding slump retention performance, with a slump retention rate of over 93% within one hour. This effectively extends the workability time of concrete and ensures good performance even after long‑distance transportation.
Significant Enhancement of Concrete Strength
With the same cement content and slump, the 28‑day compressive strength ratio can exceed 150%. Early‑stage strength can be increased by more than 50%, while later‑stage strength can be increased by over 30%, meeting the requirements for high‑strength concrete mix design.
Cement Saving and Carbon Emission Reduction
By significantly lowering the water‑to‑binder ratio, the product effectively reduces cement consumption while maintaining concrete workability and strength. It allows greater use of mineral admixtures such as slag and fly ash, thereby lowering both concrete cost and carbon emissions.
Improved Concrete Durability
The product has an extremely low chloride ion content (≤0.1%) and low alkali content, causing no corrosion to steel reinforcement. It effectively reduces the alkali‑aggregate reaction and greatly enhances concrete’s impermeability, freeze‑thaw resistance, and overall durability.
Environmentally Friendly
The production process of polycarboxylate superplasticizer is pollution-free and contains no formaldehyde or other hazardous substances. The product is non-toxic, non‑irritating, non‑flammable, and non‑explosive. It complies with the ISO 14000 international standard for environmental management, making it a safe and green type of admixture.
