Advanced dry powdered high-range water reducer for modern concrete admixture systems.
Polycarboxylate Superplasticizer (PCE) Powder is a high-range water reducer based on modified polyether chemistry for low water-cement ratio concrete, slump retention and high-performance cementitious systems.
This grade provides strong water reduction, practical slump control and broad compatibility in modern concrete formulations when used with validated mix design.
It is suitable for ready-mix, pumped concrete, precast production and dry-blended admixture systems that need stronger dispersion than conventional lignosulfonate-based water reducers.
Key Performance Functions
High-Range Water Reduction
Supports low water-cement ratio concrete and higher strength design.
Slump Control
Helps improve slump retention during transport and placement.
Flexible Dosing
Can be formulated for modern cementitious systems after dosage validation.
Air Management
Supports control of unwanted entrapped air when properly formulated.
Non-Corrosive Formula
Free of calcium chloride, nitrates and other corrosive materials.
Main Specifications
| Parameter | Specification |
|---|---|
| Appearance | White or yellowish powder |
| Solid Content | 98 +/- 0.5% |
| pH (at 23 deg C) | 7 – 10 |
| Sodium Sulfate (Na2SO4) | 3% max |
| Water Content | 3% max |
| Loss on Ignition | 86% min |
| Chloride Content | 0.1% max |
| Bulk Density | 500 – 700 kg/m3 |
| Water Reducing Rate | 25% min |
| Fluidity of Cement Paste | 209 mm min |
Note: The above values are typical technical data for reference. Final agreed specification and COA shall prevail.
Recommended Application Areas
| Application Area | Typical Use | Customer Value |
|---|---|---|
| High-Performance Concrete | High-range water reducer for modern concrete systems. | Supports low water-cement ratio and high strength design. |
| Ready-Mix / Pumped Concrete | Slump retention and workability control. | Improves placing flexibility during long hauls. |
| Precast Concrete | Water reduction and strength optimization. | Supports dense microstructure and production efficiency. |
| Dry-Mix / Powder Admixtures | Powder PCE component for dry-blended admixture systems. | Provides easy handling and formulation flexibility. |
Suggested Usage Guidance
| Application | Typical Starting Dosage / Use | Technical Note |
|---|---|---|
| General use | Dosage depends on cement type, aggregate clay content and target slump retention | Trial mix required before commercial use. |
| Compatibility | Do not mix with PNS-based products unless compatibility is confirmed | Validate with complete admixture system before production. |
Dosage and application method should be verified by laboratory or pilot testing. Performance depends on formulation type, raw materials, process conditions, temperature, moisture, mixing time and target technical results.
Buyer Questions
What is Polycarboxylate Superplasticizer (PCE) Powder used for?
Polycarboxylate Superplasticizer (PCE) Powder is a high-range water reducer based on modified polyether chemistry for low water-cement ratio concrete, slump retention and high-performance cementitious systems.
Can LigninCorp provide TDS, MSDS and samples?
Yes. LigninCorp can provide TDS, MSDS, COA, packing details and sample support for evaluation and sourcing.
Is trial testing recommended before commercial use?
Yes. Dosage, compatibility and performance should be verified through laboratory or pilot testing before commercial production.
Need TDS, MSDS or Product Support?
Download the latest technical and safety documents, then send your target application, quantity, destination port and packaging requirement to LigninCorp for quotation and technical support.
PCE, SNF or Lignosulfonate?
| PCE | SNF | Lignosulfonate | |
|---|---|---|---|
| Mechanism | Steric hindrance from side chains plus charge | Electrostatic repulsion | Electrostatic, some steric |
| Water reduction (TDS) | 25% min | 14 – 17% in TDS tests | Normal range |
| Na2SO4 | 3.0% max | 3 – 20% by grade | Grade dependent |
| Typical use | High-performance, self-compacting, precast | General high-range water reducer | Normal water reducer, retarder |
Important: Do Not Mix With Naphthalene Superplasticizers
The PCE TDS warns not to combine PCE with PNS (naphthalene-based) superplasticizers in the same concrete mixture, because it causes rapid loss of workability. Clean dosing equipment when switching products.
Trial Steps
- Start with a low dose and a control mix with the same cement and aggregates.
- Measure initial slump or flow and slump retention over the haul time.
- Check air content and adjust air-entraining admixture if used.
- Test strength at the required ages.
Background on PCE chemistry: polycarboxylate superplasticizer (PCE) overview. Naphthalene alternative: SNF superplasticizer.
Frequently Asked Questions
What is PCE powder?
A dry polycarboxylate superplasticizer (high-range water reducer) for concrete and dry-mix admixtures.
What is the water reducing rate of PCE?
25% min according to the TDS.
Can PCE be mixed with SNF?
No. The TDS warns that combining PCE with PNS-based superplasticizers causes rapid loss of workability.
How is PCE powder packed?
25 kg PE-lined plastic woven bags.