Polycarboxylate Superplasticizer PCE – Concrete Admixture

Introduction to Polycarboxylate Superplasticizer (PCE)

1. What is Polycarboxylate Superplasticizer?

Polycarboxylate Superplasticizer (PCE) is a new generation of high-performance concrete admixture with 

• high water reduction rate
• good slump retention
• environmental protection
• high adaptability

Compared with traditional naphthalene and melamine water reducers, polycarboxylate superplasticizer has better performance.

It has become the preferred admixture for **modern high-performance concrete (HPC)**.

2. Main performance characteristics of polycarboxylate superplasticizer

✅ High water reduction rate (25%-40%): significantly reduce the water consumption of concrete and improve strength.

✅ Good fluidity: greatly improve the fluidity of concrete, suitable for self-compacting concrete and pumping construction.

✅ Excellent slump retention: maintain the workability of concrete for a long time, suitable for long-distance transportation.

✅ Environmental protection: does not contain formaldehyde, is environmentally friendly, and meets the requirements of green buildings.

✅ Strong adaptability: suitable for different types of cement, mineral admixtures and different construction conditions.

✅ Low shrinkage: Reduce shrinkage and cracks of concrete and improve durability.

3. Main application areas

Polycarboxylic acid high-efficiency water reducer is suitable for various concrete projects, especially those that require high fluidity, high strength and high durability, such as:

(1) High-strength concrete

• Applicable to high-strength concrete of C50-C100 and above, improve early strength and shorten construction period.
  
  
• Typical applications: high-rise buildings, bridges, and large-span structures.

(2) Pumped concrete

• Enhance the pumpability of concrete and improve construction efficiency.
  
  
• Applicable to high-rise buildings, large-volume concrete, and long-distance pumping.
  

(3) Self-leveling and self-compacting concrete

• Applicable to floor projects and underground projects, reduce vibration and improve construction quality.

(4) Mass Concrete

• Low water-cement ratio, reduced hydration heat, and prevent cracking of mass concrete.
  
  
• Typical applications: dams, tunnels, nuclear power plants, ports.

(5) Precast Concrete

• Improve early strength, accelerate demoulding, and improve production efficiency.
  
  
• Applicable to factory production of precast beams, pipe piles, PC components, etc.
  

(6) Durable Concrete

• Improve impermeability, frost resistance, and sulfate corrosion resistance, and extend the service life of concrete.
  
  
• Applicable to marine concrete, underground structures, and transportation infrastructure.
  

4. Usage method

Recommended dosage: 0.1%-0.3% (by cement mass ratio).

It can be used alone or compounded with retarders, air entraining agents, etc. to improve comprehensive performance.

It is recommended to conduct a compatibility test before use to optimize the mix ratio.

Polycarboxylate high-efficiency water-reducing agent (PCE) is currently the most advanced concrete admixture. 

It is widely used in high-strength, pumpable, self-leveling and precast concrete.

It has high water reduction rate, excellent slump retention, environmental protection and high adaptability.