Concrete Superplasticizer

Concrete superplasticizer is also known as a high range water reducer. It refers to an admixture that can reduce water consumption and increase the strength of concrete. It also refers to the admixture for saving cement in the condition of constant workability and strength.

However, Superplasticizers for concrete are different from plasticizers because the former is a chemical product, not an industrial by-product, so it has the advantages of high purity, outstanding advantages, and fewer side effects. In addition, compared with ordinary water reducing agents, superplasticizers have stronger water-reducing and reinforcing effects. With the improvement of the quality of construction projects, the use of concrete water reducing agents is becoming more and more extensive.

Types of Superplasticizers in Concrete

In fact, there are many types of concrete superplasticizers for sale in the market. But there are three common superplasticizers, such as sodum naphthalene (SNF) superplasticizer, Polycarboxylate (PCE) superplasticizer and sulphonated melamine formaldehyde (SMF) superplasticizer. Although they are all high range superplasticizers, their appearance and function are also different. The most important thing is that their prices are also different. As a professional superplasticizers manufacturer in China, Kingsun always provides high quality concrete superplasticizers for all the customers.

Sodium naphthalene sulfonate is one of the most widely used water reducers at present, and its cost performance is relatively high. SNF powder is yellow-brown, its liquid is brown, soluble in water, stable in chemical properties, long-term storage does not deteriorate.

SNF superplasticizer can be applied to Portland cement, ordinary Portland cement, slag Portland cement, pozzolanic Portland cement, fly ash Portland cement, etc. It is also suitable for prestressed reinforced concrete, high-strength concrete, high-performance concrete , steamed concrete, large flow concrete, pumped concrete, etc. So SNF can be widely used in buildings, roads, bridges, tunnels, etc. In addition, it can also be used as a dispersant in leather, textile, dye and other industries.

  • SNF is harmless to humans or animals. Besides, it has wide adaptability and significant enhancement to cement.
  • The naphthalene superplasticizer dosage in concrete is 0.5%~1.5% of the cementitious material, while the water reduction rate is 15~25%.
  • It can save 15~20% of cement while maintaining the same workability and strength of concrete. Under the same mixing ratio, the initial slump of concrete can be increased by more than 10cm.
  • The water-reducing effect is obvious, which can enhance the workability of concrete at a low water-cement ratio and improve the fluidity of concrete.
  • This product is low in alkali and sodium sulfate, which effectively avoids the reaction of concrete alkali-aggregate, no precipitation or crystal at low temperature.

Advantages of Naphthalene Superplasticizer

  • SNF is harmless to humans or animals. Besides, it has wide adaptability and significant enhancement to cement.
  • The naphthalene superplasticizer dosage in concrete is 0.5%~1.5% of the cementitious material, while the water reduction rate is 15~25%.
  • It can save 15~20% of cement while maintaining the same workability and strength of concrete. Under the same mixing ratio, the initial slump of concrete can be increased by more than 10cm.
  • The water-reducing effect is obvious, which can enhance the workability of concrete at a low water-cement ratio and improve the fluidity of concrete.
  • This product is low in alkali and sodium sulfate, which effectively avoids the reaction of concrete alkali-aggregate, no precipitation or crystal at low temperature.
TypeSNF-ASNF-BSNF-C
Solid Content (%) ≥92%
PH Value7-9
Na2SO4 Content (%)≤51018
Chlorine Content (%)≤0.30.40.5
Net Starch Fluidity(mm)≥250240230
Water Reducing Rate(%)262523
Packing25kg pp bag; 650kg Jumbo bag. A customized package is available.
PCE superplasticizer belongs to high-performance water reducing admixture, which is a kind of cement dispersing agent in the application of cement concrete. It can be widely used in highways, bridges, dams, tunnels, high-rise buildings and other projects. High-performance polycarboxylate superplasticizer has many characteristics such as preventing concrete slump loss without causing significant retardation, good plasticizing effect at low dosage, good fluidity retention, and high degree of freedom. In addition, it enables concrete to have excellent workability, good strength and durability. In a word, PCE water reducer has good comprehensive technical performance advantages and environmental protection characteristics, which meets the needs of modern concrete engineering. Therefore, it has gradually become the preferred admixture for the preparation of high-performance concrete.

Advantages of PCE Superplasticizer:

Compared with water reducing agents such as naphthalene, aliphatic and sulfonated melamine, the advantages of polycarboxylate superplasticizer are as follows:
    •  Good protection, no-slump or loss in 90min.
    • In the case of the same fluidity, the impact on cement setting time is small. As a result, it can solve the problems of water reduction, bleed air, retardation, and bleeding.
    • PCE superplasticizer can prepare super-water reducing agents with special properties by adjusting the molecular structure.
    • More slag or fly ash can be used instead of cement to reduce costs by adding polycarboxylate concrete admixture.
    • The polymerization route is diversified, and the synthesis process is relatively simple. Since no harmful substances such as formaldehyde and naphthalene are used, the environment will not be polluted.
Items Standard
PCE (High Water Reduction) PCE (High Slump Retention) PCE Powder
Appearance Light Yellow Liquid Clear Transparent Liquid White Powder
Solid Content, % 50±1.0 50±1.0 98±1.0
Density (23℃) (kg/m3) 1.13±0.02 1.05-1.10 600±50
PH 6.5-8.5 6.5-8.5 9.0±1.0
Chloride Content,% ≤ 0.1 0.1 0.1
Na2SO4 (by solid content), % ≤ 4.0 4.0 4.0
Solubility Completely Soluble
Water reducing ratio, % ≥ 25
Packing The packing of PCE liquid is 230kg PE drum, 1100kg IBC tank or flexitank. But for PCE Powder, its packing is 25 kg PP woven bag.

Sulphonated Melamine Formaldehyde (SMF) is a product used as a concrete water reducer in cement and gypsum based solutions to reduce moisture content while increasing the flow and consistency of mixtures. When used in a good mix design, SMF results in lower porosity, better mechanical efficiency and higher concrete resistance to aggressive conditions.

Application of SMF Superplasticizer

  • Suitable for ready mix concrete, pumped concrete, flow concrete, high performance and better concrete, self-compacting concrete and high strength mortar.
  • Self-leveling floor products and grouts for foundry foundations.
  • Suitable for high-strength gypsum and gypsum materials.

You Should Know More About Superplasticizers for Concrete

  • Improve the workability of concrete without changing the composition of the mix.
  • Reduce cement and moisture content in concrete to reduce concrete production costs.
  • Reduce the water/cement ratio, thereby increasing the strength and durability of concrete.
  • Slow the setting rate of concrete while maintaining the flow characteristics of the concrete admixture and removing air bubbles.

A superplasticizer is a powerful water reducer that increases the ultimate stress of concrete by reducing the water-cement ratio, reducing the cement content while maintaining the same strength or workability range, increasing concrete compaction, etc.

Concrete tends to lose its workability quickly when superplasticizers are used. Therefore, high-strength concrete containing such materials must be transported, placed and finished before it loses its workability. Many superplasticizers maintain reasonable processability at around 100 minutes, but we still need to be cautious, especially in projects where a ready-mix concrete haul truck requires longer travel times. Usually, in order to avoid a sharp drop in slump and the resulting difficulty in pouring, only part of the superplasticizer is mixed in the batching process, and the rest is added on-site before pouring.

  • Reduce water-cement ratio, high water-reducing efficiency.
  • Increase concrete density and improve concrete early strength.
  • Improves concrete bond strength and increases wear resistance.
  • Reduced permeability and reduced separation and bleeding.
  • Greater volume stability and reduced shrinkage cracking.

Plasticizers are also called water reducers. They can be used to increase the plasticity of polymeric materials such as polyvinyl chloride and are used as water reducers in concrete mixes. Moreover, plasticizers can reduce the need for water by 5-15%.

Superplasticizers are also called high range water reducers. Superplasticizer is a water-reducing admixture capable of a large amount of water reduction or good flow without causing excessive retardation or air entrapment in the mortar or concrete. They can reduce the need for water by 30%, which improves the strength and durability of concrete.

Kingsun - A Leading Concrete Superplasticizer Manufacturer

  1. As a leading manufacturer of construction chemicals in China, Henan Kingsun Chemical Co., Ltd. has been focusing on the research and production of various concrete admixtures with more than 15 years of experience.
  2. Kingsun company has its own factory and warehouse, the advanced production equipment, professional sales team.
  3. All of our products have passed quality certifications, such as ISO, SGS, BV,etc.
  4. Kingsun products have been exported to Brazil, Bahrain, Mexico, Korea, Thailand,Vietnam, Indonesia, Pakistan, South Africa, Australia, Chile, Russia, Ukraine, Singapore, Malaysia, India, etc. Besides, we also have established a long-term and stable trade relations with many new and old customers.
  5. We always try our best to provide the high quality products and good services for customers all over the world. By the way, if you want to know the price of concrete superplasticizer, please contact us online any time, we will be happy to help you.

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