High-efficiency concrete superplasticizer is a chemical admixture that can significantly improve the workability of commercial concrete and significantly reduce its mixing water volume. It is one of the important products in the pillar industry of new building materials. Concrete superplasticizers greatly improve the mechanical properties of high-strength commercial concrete, but also provide a simple and easy construction process.
The main differences between ordinary water reducer and high-efficiency superplasticizer are the water reduction rate. Generally speaking, the water reduction rate of ordinary water reducer is generally 5%~10%, while the water reduction rate of superplasticizer can reach 15%~30%. Besides, the dosage of ordinary water reducing agent cannot exceed the limit value (such as the dosage of lignin sulfonate water reducer cannot exceed 0.3%), while concrete superplasticizers can be added to cement in a higher proportion without adverse effects on concrete.
Various Types of Superplasticizers For Concrete
The superplasticizer for concrete has the functions of high-efficiency water reduction, retardation, slump retention and reinforcement. This product has strong adaptability to cement, less dosage, and is easy to use. It is especially suitable for concrete projects that require high-efficiency water reduction and retardation. The water-reducing rate Between 18% and 25%. Therefore, Kingsun concrete superplasticizers for sale are suitable for prefabricated and cast-in-place reinforced concrete and prestressed reinforced concrete projects in various industrial and civil buildings, water conservancy, transportation, ports, municipal and other engineering constructions. They are also suitable for high-strength, ultra-high-strength, medium-strength concrete, early-strength, shallow frost-resistant, and large-flow concrete. In addition, they can be used as the water-reducing component of various compound additives.
Below we will introduce several common concrete superplasticizers on the market, for example, sodum naphthalene (SNF) superplasticizer, PCE polycarboxylate superplasticizer and sulphonated melamine formaldehyde (SMF) superplasticizer. These prodcuts all belong to the high range superplasticizers, but their function and prices are also different. Please check the detailed introduction of these superplasticizer series products:
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.
| Type | SNF-A | SNF-B | SNF-C |
| Solid Content (%) ≥ | 92% | ||
| PH Value | 7-9 | ||
| Na2SO4 Content (%)≤ | 5 | 10 | 18 |
| Chlorine Content (%)≤ | 0.3 | 0.4 | 0.5 |
| Net Starch Fluidity(mm)≥ | 250 | 240 | 230 |
| Water Reducing Rate(%) | 26 | 25 | 23 |
| Packing | 25kg 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 Superplasticizers
- 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.
- Bridge engineering. Improve the fluidity and strength of bridge concrete, and ensure the stability and durability of bridge structures.
- Tunnel engineering. Improve the construction performance of tunnel concrete, reduce construction difficulty, and improve project quality.
- High-rise buildings. Used in concrete construction of high-rise buildings, improve the fluidity and strength of concrete, and ensure the stability and safety of building structures.
- Water conservancy projects. Can improve the impermeability and durability of water conservancy projects, and ensure the safe operation of water conservancy facilities.
- High water reduction rate. Concrete superplasticizer can significantly reduce the water-cement ratio of concrete, improve the compactness and strength of concrete.
- Good fluidity. Improve the fluidity of concrete, making it easier to pour, vibrate and compact.
- Enhancement effect. While reducing the water-cement ratio, it can improve the compressive strength and impermeability of concrete.
- Green and environmentally friendly. Non-toxic and harmless to the environment and human health, in line with environmental protection requirements.
The mechanism of action of high-efficiency superplasticizer is mainly to form a hydration film by adsorbing on the surface of cement particles, thereby preventing direct contact between cement particles, reducing friction and resistance between cement particles, and making concrete easier to flow during mixing and pouring. At the same time, high-efficiency water reducer can also promote the hydration reaction of cement particles and improve the strength and durability of concrete.
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.
Kingsun - A Leading Concrete Superplasticizer Manufacturer
- 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.
- Kingsun company has its own factory and warehouse, the advanced production equipment, professional sales team.
- All of our products have passed quality certifications, such as ISO, SGS, BV,etc.
- 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.
- 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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