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Polycarboxylate Superplasticizer Liquid

Polycarboxylate Superplasticizer Liquid (PCE) is a high-performance, third-generation concrete admixture designed to significantly improve the workability and strength of modern concrete systems. This product appears as a colorless to light yellow liquid and is typically supplied with a solid content of 40–50% or customized according to application requirements.

Celix is a trusted manufacturer of construction chemicals, delivering cost-effective alternatives to leading brands while maintaining stable performance and reliable supply.

CAS No.: 27599-56-0
Type: Water-reducing Agent
Appearance: Liquid
HS Code: 3824401000
Model No.: PCE-L50

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Functions

Specification

Applications

Polycarboxylate Superplasticizer Liquid Functions

PCE works by dispersing cement particles through steric hindrance and electrostatic repulsion, allowing concrete to achieve high fluidity while maintaining a low water-cement ratio. This results in stronger, denser, and more durable concrete structures.

High-Efficiency Water Reduction

Reduces water content by 25–40% while maintaining excellent fluidity, enabling lower water-cement ratios and higher strength development.

Enhanced Workability & Flowability

Improves concrete slump and ensures smooth placement, making it ideal for pumping and complex structural applications.

Excellent Slump Retention

Maintains workability over extended periods, especially suitable for long-distance transportation and hot climate conditions.

Cement Dispersion Optimization

Effectively disperses cement particles through steric hindrance, improving hydration efficiency and reducing agglomeration.

Strength Improvement

Enhances both early and long-term compressive strength by optimizing microstructure and reducing porosity.

Reduced Shrinkage & Cracking Risk

Helps minimize drying shrinkage and cracking, improving the durability and service life of concrete.

High Adaptability

Compatible with various cement types and supplementary materials such as fly ash, slag, and silica fume.

Cost Efficiency Optimization

Achieves high performance at low dosage, allowing customers to reduce overall formulation cost without sacrificing quality.

Polycarboxylate Superplasticizer Liquid Specification

Appearance	Density（g/cm 3）	pH Value	Solid Content(%)
Colorless to pale yellow liquid	1.10±0.02	5.5±1.5	50±2

It can be used in combination with other types of mother liquor, sodium gluconate, air-entraining agents, defoamers, and other functional excipients; It is recommended to conduct a mixing ratio test before use to determine the optimal dosage; Addition method: After mixing evenly with water, pour it into the mixer.

PCE Applications In Construction

Ready-mix concrete

Precast and prestressed concrete

Pumped concrete and mass concrete

High-strength and high-performance concrete

Ready-mix concrete

Provides high water reduction and excellent slump retention, ensuring workability during transportation and placement.

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Precast and prestressed concrete

Enables low water-cement ratio for higher early strength, improving production efficiency and mold turnover.

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Pumped concrete and mass concrete

Enhances flowability and pumpability, reducing friction and preventing blockage in long-distance pumping.

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High-strength and high-performance concrete

Delivers superior dispersion for ultra-low water-cement ratios, supporting high strength, density, and long-term durability.

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FAQ-PCE Liquid

Can PCE Liquid be used with other chemical admixtures?

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Compatible with: Lignosulfonates, gluconate retarders, air-entraining agents, and defoamers.
Incompatible with: Naphthalene-based superplasticizers (SNF / PNS). Never mix PCE with SNF products in the same tank or line without thorough flushing, as cross-contamination causes immediate gelling, severe flocculation, and performance failure.

What is Polycarboxylate Superplasticizer (PCE) Liquid and how does it work?

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Polycarboxylate Superplasticizer (PCE) Liquid is a high-performance, third-generation concrete admixture designed for exceptional cement dispersion.

Mechanism: It operates via a dual mechanism—electrostatic repulsion combined with steric hindrance from grafted polyether side chains. This prevents cement particles from agglomerating, allowing dramatic water reduction (up to 30–40%) while dramatically improving fluid flow and workability.

What solid contents are available, and how do I choose between them?

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We supply PCE liquid primarily in 40% and 50% solid content (Mother Liquor):

50% Solid Content (Mother Liquor / Concentrated): Ideal for local admixture manufacturers and chemical formulators who dilute or blend it with other functional additives (retarders, defoamers, air-entrainers) to produce commercial concrete admixtures.
40% Solid Content: Ready for direct formulation adjustments or commercial batching plant applications.

What is the difference between Water-Reducing Type (HWR) and Slump-Retention Type (SR)?

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High Water-Reducing Type (PCE-HWR): Engineered for maximum initial flowability and high early strength, offering water reduction rates of 30% to 40%. Ideal for precast elements and high-strength concrete (HPC/UHPC).
Slump-Retention Type (PCE-SR): Formulated to maintain concrete workability and slump over extended periods (2 to 3+ hours) without severe retarder side effects. Ideal for ready-mix concrete transported over long distances or in high ambient temperatures.

What is the standard recommended dosage?

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Dosage Range: Typically 0.2% to 0.8% by weight of total cementitious materials (based on a 40–50% solid content liquid).
Dosage Sensitivity: PCE is far more efficient than older generations (SNF/SMF). Overdosing can cause segregation, excessive bleeding, or delayed setting time. We strongly advise running site laboratory trial mixes to fine-tune dosage based on local cement and aggregate conditions.

What are the storage, shipping, and shelf life conditions for PCE Liquid?

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Freezing Protection: Liquid PCE must be protected from freezing (store between 5°C and 40°C). Freezing may lead to phase separation or crystallization.
Packaging: 220 kg plastic drums, 1100 kg IBC totes, or Flexitanks for bulk sea shipping.
Shelf Life: 12 months under sealed, cool, and dry storage conditions out of direct sunlight.

Should I import PCE Liquid or PCE Powder?

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Choose PCE Liquid if you run a local ready-mix/precast plant equipped with liquid dosing meters, or if you operate a regional blending facility.
Choose PCE Powder if you manufacture dry-mix mortars (e.g., tile adhesives, self-leveling), or if long-distance sea freight makes shipping water content cost-prohibitive. (Note: PCE Powder can be re-dissolved on-site into liquid).

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Celix Cellulose Co., Ltd, is an integrated chemical cellulose manufacturer with in-house R&D, factories, and global sales sites.

Our products include HPMC, HEC, MHEC, VAE RDP, PCE, PVA, Defoamers, PP fibers, HPS, SHP and Gypsum Retarder.

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Celix Cellulose Co., Ltd, is an integrated chemical cellulose manufacturer with in-house R&D, factories, and global sales sites.

Our products include HPMC, HEC, MHEC, VAE RDP, PCE, PVA, Defoamers, PP fibers, HPS, SHP and Gypsum Retarder.

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