PCE Polycarboxylate Superplasticizer Liquid

PCE Polycarboxylate Superplasticizer Liquid, this is an indispensable core chemical admixture in modern concrete engineering, and it is as the third-generation high-performance water-reducing agent following calcium and sodium lignosulfonate (the first generation) and Sodium naphthalene sulfonate (the second generation).

PCE Polycarboxylate Superplasticizer Liquid is a synthetic high-molecular polymer liquid, its main features include:

· Chemical composition: A copolymer with polycarboxylate ether (PCE) as the main chain and side chains of polyethers (such as polyoxyethylene ether) of different lengths grafted onto it.
· Physical form: Usually a pale yellow, brown or colorless transparent viscous liquid.
· Main function: At an extremely low dosage (typically 0.1% - 0.3% of the mass of the cementitious materials), PCE Polycarboxylate Superplasticizer can significantly reduce the water requirement of concrete or greatly enhance the fluidity (slump) of concrete without increasing the water content.

The water reduction rate of PCE Polycarboxylate Superplasticizer Liquid can reach 25% - 40%, or even higher. This means to achieve the same concrete fluidity, the amount of mixing water can be significantly reduced, thereby significantly improving the strength and durability of the concrete.

Traditional water reducers like sodium lignosulfonate, calcium lignosulfonate, sodium naphthalene sulfonate cause rapid slump loss in concrete, while PCE Polycarboxylate Superplasticizer Liquid high performance water reducers can maintain the fluidity and workability of concrete for a long time (1-2 hours or even longer), facilitating long-distance transportation and on-site construction.

The little dosage can achieve the technical required, PCE Polycarboxylate Superplasticizer Liquid offers better economy and environmental friendliness.

By altering the main chain, side chain length, functional groups, etc., PCE Polycarboxylate Superplasticizer Liquid products with different performance focuses can be "customized" (such as high early strength type, high slump retention type, high water reduction type, anti-mud type, etc.).

PCE Polycarboxylate Superplasticizer Liquid component doesn't have toxic substances like formaldehyde are used in the production process, so making it a green and environmentally friendly product.

Unlike sodium lignosulfonate or calcium lignosulfonate, it has a relatively small impact on setting time and is easier to control.

1. Dosage sensitivity: The water-reducing effect is highly sensitive to the dosage of PCE Polycarboxylate Superplasticizer Liquid. Insufficient dosage results in no obvious effect, while excessive dosage can easily cause concrete segregation, bleeding, and even collapse. Precise measurement is necessary.

2. Cement adaptability: Different manufacturers and batches of cement have different mineral compositions, which may result in different adaptability effects with the water reducer. Pre-use trial mixing tests must be conducted.

3. Mud content of aggregates: Soil (especially bentonite) will absorb a large number of water reducer molecules, leading to their failure. The mud content of sand and stone aggregates must be strictly controlled. Now there are also specially developed "anti-mud type" polycarboxylate superplasticizer PCE water reducers.

4. Compatibility with other admixtures: When used in combination with defoamers, air-entraining agents, retarders, etc., compatibility tests must be conducted to avoid phenomena such as flocculation and precipitation.

5. Storage and shelf life:
· Usually stored in plastic or stainless steel containers to avoid long-term storage in iron containers (which may cause cross-linking deterioration).
· Protect from direct sunlight and freezing. Generally, the recommended storage temperature is 5°C - 40°C.
· The shelf life is usually 6-12 months. After expiration, the effect must be tested before deciding whether to use it.

The PCE Polycarboxylate Superplasticizer Liquid high range water reducer has become the cornerstone of modern concrete technology due to its extremely high water reduction rate, excellent slump retention performance and environmental-friendly characteristics. 

For many years, we Shanxi Jiankai Fine Chemicals have adhered to enjoy a good reputation among our customers because we provide professional services, satisfied-quality products, and competitive prices. We warmly welcome domestic and foreign customers to cooperate with us to achieve common success. Witness each other's success, we warmly welcome foreign customers to come to cooperate, let us grow together, common progress.