Polycarboxylate Superplasticizer | PCE Powder and Flake
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Polycarboxylate Superplasticizer
LANDU NOVASTAR is a leading manufacturer in China dedicated to specialty chemicals like Polycarboxylate Superplasticizer(PCE) for building material. As a brand under LANDU, NOVASTAR has provided PCE powder and PCE flakes for many factories worldwide. Polycarboxylate Superplasticizer(PCE), also called water reducer, is an innovative and advanced chemical additive used in concrete and mortars. It significantly improves the flowability without increasing the water content. This allows for high-strength, high-performance concrete and mortar with lower water-to-cement ratios. Also, it can accelerate the early strength development of concrete or mortar.
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Frequently Asked Questions
- Reduce Water Content: PCE-based superplasticizers can significantly reduce water content by up to 40% at low dosages of around 0.12% to 0.22% without compromising fluidity.
- Improve Strength: Polycarboxylate Superplasticizer could accelerate the early strength development of concrete and mortar.
- Slump Retention: Polycarboxylate Superplasticizer ensures concrete consistency and workability. With a higher slump rating, concrete can be more fluid and pumpable, especially for projects involving long-distance pumping and bulk construction.
The PCE molecules absorbed onto cement particles have an electrostatic repulsion and steric effects. This can prevent cement particles from holding together due to electrostatic force. As a result, cement can be evenly dispersed in water. Such a dispersion allows the concrete to flow more easily with less water.
- Compatibility: Polycarboxylate Superplasticizer is well compatible with various gypsum and cement including quick-setting and low-heat cement. It can be used with other chemical additives, such as anti-foaming agents and gypsum retarders.
- Environmentally Friendly: The production of PCE uses no formaldehyde, free of toxic, public nuisance, or any pungent odor.
- Save Costs: Thanks to Polycarboxylate Superplasticizer, it is viable to replace cement with slag or fly ash which are much cheaper.
- Low Content of Chloride and Alkali: PCE could reduce steel corrosion to improve the durability of concrete and mortar.
- Flexible Molecular Structure: The comb-like structure of the Polycarboxylate Superplasticizer is designed to achieve tailored performance for various concrete and mortar. By adjusting the chemistry and length of the main chain and, the length and density of the side chain, PCE could have a specific water reduction rate, workability, rheological behavior, strength, air content, and working time.
content mubu-node”>As the third generation of superplasticizers, PCE overcomes the drawbacks of traditional ones such as naphthalene or melamine formaldehyde water reducer.
| Traditional Superplasticizer | Polycarboxylate Superplasticizer | |
|---|---|---|
| Dispersion Mechanism | electrostatic repulsion | electrostatic repulsion and steric effects |
| Water Reduction Rate | 15-25% | up to 40% |
| Slump Preservation | within 30-60 minutes | up to 2 hours |
| Environmental Impact | Contain formaldehyde and other chemicals | Formaldehyde-free |
| Compatibility | incompatibility issues | Highly compatible with various additives |
LANDU NOVASTAR is a global bench-marking brand of specialty additives. Experience our specialty chemicals risk-free with free samples including global shipping and detailed lab test reports.
- Zero-Cost Testing: Receive fully subsidized samples with free worldwide shipping.
- Full Transparency: Access detailed technical reports (viscosity, curing time, pH, etc.) for informed decisions.
- Customization Promise: Unhappy with results? If the results don’t meet your specifications, our R&D team will refine the product until it aligns perfectly with your needs—no cost or obligations.
Request your free sample today and elevate your project with precision-engineered chemistry.
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Diverse Applications of Polycarboxylate Superplasticizer(PCE)
Precast Concrete
Polycarboxylate Superplasticizer(PCE) is used to make precast concrete fluid and flowable for easy casting into molds. For precast production, especially in heavily reinforced elements, this high flowability could ensure uniform consistency and ease of placement. Beyond workability, PCE achieves a 20% to 30% increase in both the early and ultimate strength of concrete by lowering the water-to-cement ratio.
Cement-Based Self Leveling Compounds
Polycarboxylate Superplasticizer could promote smooth flow while reducing the viscosity of self-leveling mortar. It helps the mortar disperse evenly to avoid color differences and roller marks on its surfaces.
Gypsum-Based Self Leveling Compounds
Compatible with gypsum additives such as retarder, Polycarboxylate Superplasticizer could significantly improve both the early and final strength of the mortar.However, the gypsum system is sensitive to PCE type and gypsum purity. Let NOVASTAR professional chemists provide custom-designed formulation to minimize your losses in gypsum projects.
UHPC(Ultra-High Strength Concrete)
The primary role of PCE-based Superplasticizer is to achieve high strength and dense microstructure while allowing the concrete to be fluid and flowable despite the very low water-to-cement ratio. It could reduce yield stress and plastic viscosity in Ultra High-Performance Concrete with a compressive strength greater than 15,000 psi.
Repair Mortar
PCE water reducer could improve the strength of repair mortar to withstand freeze-thaw cycles and deicing agents. It can also extend the setting time for repair tasks requiring precise application in damaged areas.
Grouting and Support Mortar
For grouting mortars, PCE’s high water-reducing rate contributes to better filling of gaps and voids. For support mortars, it is used to remain slump, enhance strength, and reduce cracking, which are critical for structural integrity.
Oil Drilling
Using a Polycarboxylate Superplasticizer leads to a denser, stronger cement that better isolates different zones in the well. Meanwhile, PCE serves as a dispersant in cement-based drilling muds, especially for plugging lost circulation zones or sealing the annulus.
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Polycarboxylate Superplasticizer Project Cases
Water Project
Transportation Project
Construction Work
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Polycarboxylate Superplasticizer Project Cases
7 Key Differences between Polycarboxylate Superplasticizers (PCE) and Traditional Superplasticizers
Everything You Need to Know About Polycarboxylate Superplasticizers (PCEs) in Modern Construction
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Contact us for a professional Polycarboxylate Superplasticizer solution. Equipped with an R&D center consisting of 3 dedicated innovative laboratories, we can customize the formulation according to your requirements.
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Specialty Additives
- Polycarboxylate Superplasticizer (PCE)
- Silicone Hydrophobic Powder (SHP)
- Gypsum Retarder
- Powder Defoamer
- Hydroxypropyl Starch Ether
Diverse Applications
Cement Based Self Leveling Compounds
Ultra-High Performance Concrete
Precast Concrete
Gypsum Plaster
Why Choose Novastar
- ISO and EU REACH Ceritification
- 17 Years In Specialty Chemical Manufacturing
- Strict Quality Control and Assurance
- R&D Centers and Chemists to Develop Tailored Formulation and Solution
- 11 Product Patents and 4 Utility Model Patents
- Fast Delivery and Flexible Payments
- 25 Years Experienced Technical Engineers
- Exported to More Than 60 Countries and Regions
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