PC-303E Polycarboxylate Superplasticizer Powder for Cement-Based Materials

High Dispersion in Cement-Based Materials

PC-303E is designed for cement-based powder systems where strong dispersion and stable flow are required.

It helps cement mortar, grouting materials, and injection materials reach the required fluidity with lower water demand.

Strong Water Reduction Reference Performance

In reference mortar testing, PC-303E achieved water reduction from 13% at 0.10% dosage to 40% at 0.30% dosage while maintaining mortar fluidity around 180-185 mm. This makes it suitable for cementitious products requiring low water-binder ratio and high flowability.

Stable Cement Paste Fluidity

Reference cement paste tests using ordinary Portland P.O 42.5 cement showed that PC-303E can increase paste fluidity from 150 mm at 0.05% dosage to 300 mm at 0.20% dosage, with the 60-minute fluidity at 0.20% remaining at 300 mm.

Powder Form for Dry-Mix Production

PC-303E can be uniformly premixed with cement, mineral powder, fillers, and other dry additives, making it suitable for factory-produced cement-based dry mortar and packaged grouting products.

Cement Mortar and Dry-Mix Mortar

PC-303E is suitable for various cement mortars and dry-mix mortar systems requiring high flowability, reduced water demand, and good construction performance. It is especially useful when liquid admixture dosing is inconvenient.

Cement-Based Grouting Materials

Grouting materials need high fluidity and filling ability while maintaining strength development. PC-303E improves dispersion in cementitious powder systems and helps reduce the water-binder ratio for dense hardened performance.

Injection Materials

For cement-based injection materials, PC-303E supports stable fluidity and improved penetration performance. Its powder form allows convenient formulation adjustment in premixed products.

Precast Cement Products

PC-303E can be used in various precast cement components and manufactured cement products where flowability, surface quality, and strength development need to be balanced.

How is PC-303E different from general concrete PCE powder?

PC-303E is positioned for cement-based materials such as mortar, grouting materials, injection materials, and precast cement products. It focuses on powder-form cementitious systems rather than only ready-mix concrete applications.

What reference performance data is available?

In reference cement paste testing, 0.20% PC-303E achieved 300 mm initial fluidity and 300 mm 60-minute fluidity. In reference mortar testing, water reduction reached up to 40% at 0.30% dosage under the tested conditions.

Does cement compatibility affect PC-303E performance?

Yes. Cement type, mineral admixtures, sand gradation, fillers, and other additives may affect fluidity and retention. Trial mixing is required before production use.

Can PC-303E be used for grouting materials?

Yes. PC-303E is suitable for cement-based grouting and injection materials that need high flowability, low water-binder ratio, and stable fresh-state performance.

The shelf life is 12 months from the date of production. If the shelf life has expired, testing and verification must be carried out before use.

Store in a well-ventilated and dry place. Measures should be taken to prevent moisture. Avoid direct sunlight. After opening, it should be used promptly. If not all of it is used, it should be sealed promptly to prevent it from absorbing moisture and becoming spoiled.

Standard packaging options include 25kg/bag or jumbo bag. Typical loading capacity is approximately 20MT/20ft or 28MT/40HQ without pallets, depending on packing and logistics conditions.

Before use, PC-303E needs to be mixed evenly with cement, mineral admixtures, fillers, and other dry powder components. The construction mixing and application should be carried out according to the specific requirements of the cement-based product system.

The recommended dosage of PC-303E is between 0.15% and 0.30% of the binders. The exact amount should be determined by trial mixing based on cement source, mineral admixture type, mortar flow requirements, and strength requirements.

For More Information About Dosage：

If you would like to learn more about recommended dosage ranges and practical application methods of superplasticizers, you may refer to the following articles:

• How Much Superplasticizer Should Be Added to Concrete? – A comprehensive guide covering dosage recommendations for different types of superplasticizers, influencing factors, and adjustment methods under various construction conditions.
• How to Add Superplasticizer to Concrete Correctly? – Learn the proper addition sequence, mixing procedures, and practical tips to maximize workability, strength development, and overall material performance.