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Concrete Admixtures

Polycarboxylate Superplasticizer Concrete Water Reducer

Polycarboxylate superplasticizer, as known as concrete water reducer, is a new generation of polycarboxylate superplasticizer made of polyoxyethylene ether macromonomer, unsaturated acid and sulfonic acid group monomer by radical polymerization. The
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Description

What is concrete superplasticizer?

Polycarboxylate ether superplasticizer, also known as concrete water reducer, is a new generation of polycarboxylate superplasticizer made of polyoxyethylene ether macromonomer, unsaturated acid, and sulfonic acid group monomer by radical polymerization. The application of Polycarboxylate ether superplasticizer to concrete has high water reduction and low slump loss performance and can be widely used in pumped concrete, superfluid self-compacting, high-strength, high-performance concrete, and commercial concrete.

 

Technical principle of superplasticizer admixture

Polycarboxylate ether superplasticizer has a comb-shaped structure, with longer polyoxyethylene chains and high-density sulfonic acid groups in the molecule, which makes it have greater steric hindrance and electrostatic repulsion, providing cement with greater dispersion and higher water reduction.
 


Specifications of  olycarboxylate Superplasticizer Concrete Water Reducer

 

Features of Superplasticizer Admixtures

(1) Superplasticizer admixture has great dispersibility and an extremely high water reduction rate (water reduction rate can reach more than 35%), which provides a guarantee for the preparation of high-grade concrete.

(2) Polycarboxylate superplasticizer is an important concrete admixture; Superplasticizer admixture can effectively reduce the viscosity of concrete, have good cohesion, moderate air content, and be suitable for pumping;

(3) Water-reducing admixtures can make concrete with high strength at all ages, good volume stability, outstanding impermeability, freeze-thaw resistance, corrosion resistance, and carbonization resistance;

(4) Superplasticizer admixtures have wide adaptability to Portland cement, ordinary Portland cement, slag silicate, fly ash cement, pozzolan cement, and various admixtures.
 

concrete water reducer

Superplasticizer dosage in concrete

The usual dosage is 0.5%-1.0% (calculated by the total amount of cementitious materials), and the optimum dosage should be determined by experiments according to the engineering materials and characteristics;

The water-reducing agent can be dissolved in water or added to the concrete mixer alone;

It can be used in combination with high plasticity polycarboxylate water reducer, lignosulfonate water reducer, and various retarders.

The company provides a complete set of compounding and use technologies that can train users. If there are any difficult problems, engineers will come to guide you.

Applications of concrete admixture superplasticizer

Early-strength concrete, retarded concrete, precast concrete, cast-in-place concrete, large-flow concrete, self-compacting concrete, mass concrete, high-performance concrete and fair-faced concrete, ready-mixed and cast-in-place in various industrial and civil buildings concrete. Especially suitable for low-grade commercial concrete.

Concrete admixture superplasticizers can be widely used in large and key national projects such as high-speed railways, nuclear power, water conservancy and hydropower engineering, subways, large bridges, expressways, harbors, and wharves.

Concrete admixture superplasticizer is also suitable for various industrial and civil construction and commercial concrete batching plants.

 

Packaging and Storage of concrete admixture superplasticizer

The liquid of concrete admixture superplasticizer is sealed in 200 kg and 1000 kg barrels.

Anti-leakage, anti-exposure, anti-high temperature during Storage;

The shelf life is one year, and it can only be used after passing the inspection.

 

FAQs of Concrete Water Reducer:

Q: How much superplasticizer to add to concrete?
A: Depending on the type, dosage and water-binder ratio of cement, the dosage can be adjusted by changing the dosage. The recommended dosage of this product is 2.0%.

Q: Does water reducer make concrete set faster?
A: Water reducers, retarders, and superplasticizers are admixtures for concrete, which are added in order to reduce the water content in a mixture or to slow the setting rate of the concrete while retaining the flowing properties of a concrete mixture.

Q: What is the difference between water reducer and superplasticizer?
A: Water Reducing Admixtures (WRAs) typically allow reduction of water content by up to 10% whilst maintaining similar workability. Superplasticisers allow reduction of water content by up to 30%.

Q:Does adding less water to concrete make it stronger?
A: The role of water is important because the water to cement ratio is the most critical factor in the production of "perfect" concrete. Too much water reduces concrete strength, while too little will make the concrete unworkable.

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