Polycarboxylate Superplasticizer PCE 50% For High Slump Retaining Type

JIANKAI® JK-PCE-HSR Polycarboxylate Superplasticizer PCE 50% for High slump retaining type is a new generation of slow releasing and slump retaining mother liquor made from TPEG by free radical polymerization, and a new sustained-release group is introduced into the synthesis. Under the alkaline condition of concrete, the slow-releasing group in the molecular structure of this product can slowly release the group with dispersive function, playing the role of continuing to disperse the cement, so as to achieve the role of inhibiting the concrete slump loss.

Polycarboxylate Superplasticizer Slump Retention Type has a low water reduction rate, but it has very high slump protection performance. It is mainly used in high-strength concrete with higher requirements for slump protection performance, and its products are widely used in pumping concrete, super-flow self-compacting and high-strength high-performance concrete and commercial concrete for high-speed railway, expressway, hydro-power and other large engineering projects.

The molecular structure of polycarboxylate superplasticizer slump retention agent contains hydrophilic groups, such as ether bonds, hydroxyl groups, carboxyl groups and ester groups. These groups have good binding ability with cement particles, enabling the water-retaining agent to rapidly adsorb on the surface of the cement particles. By introducing these hydrophilic groups into the main chain of the molecule, the polycarboxylate superplasticizer slump retention agent can form a stable dispersion system on the surface of the cement particles, thereby prolonging the dispersion time of the cement particles and improving the water-retaining performance.

Through chemical modification or chemical reactions, such as the hydrolysis of ester groups under alkaline conditions, polycarboxylate superplasticizer slump retention agents produce polycarboxylic acid salts and alcohols with dispersing ability. These small molecule polymers can slowly release on the surface of the cement particles and continuously exert the dispersing effect, thus maintaining the fluidity and workability of the concrete.

Polycarboxylate superplasticizer slump retention are usually not used alone but are combined with the polycarboxylate superplasticizer mother liquid for use. In the initial mixing stage, ordinary polycarboxylate superplasticizer provides the fluidity of the concrete; while in the later stage, the polycarboxylate superplasticizer slump retention agent provides the necessary slump retention performance to ensure that the concrete maintains good workability within a certain period of time.

1.With super high slump performance, can let the concrete slump 2h without loss;
2.Low water reduction rate is generally not used alone, it needs to be combined with water reduction type mother liquor;

3. With low viscosity and thixotropy, it is more suitable for concrete with low water cement ratio;
4.The release time is slower, generally after 1 hour (with the change of concrete material, there will be Certain fluctuations).

The key feature of the polycarboxylate superplasticizer slump retention lies in its unique molecular structure and chemical properties, which enable it to form a stable dispersion system within the concrete. Through the sustained release effect, it continuously exerts the dispersion function, thereby effectively controlling the setting time and setting period of the concrete, and enhancing the overall performance of the concrete.

For Polycarboxylate Superplasticizer Liquid, its package: 220kgs/drum, 26 tons/Flexitank ,1100kg/IBC or upon request
Storage: Stored at ventilated dry warehouse of 2-35ºC and packaged intact, without unsealing, shelf life is one year. Protect from direct sunlight and freezing.