High-Performance Sodium Naphthalene Sulfonate Formaldehyde (SNF) Superplasticizer for Concrete Admixtures1
2 month ago
Sodium Naphthalene Sulfonate Formaldehyde (SNF/PNS/FDN)
Product Overview: Sodium naphthalene sulfonate formaldehyde (SNF/PNS/FDN) or named naphthalene sulfonate superplasticizer is a second-generation high-performance concrete superplasticizer synthesized from industrial naphthalene through sulfonation, hydrolysis, and polycondensation processes. It is one of the most widely used admixtures in the construction industry, offering exceptional water-reducing efficiency and strength enhancement.
Key Features & Performance Characteristics
- High Dispersibility: Effectively breaks down cement particle flocculation, releasing free water for improved workability.
- Early Strength Enhancement: Increases 3-day compressive strength by 40–60% compared to plain concrete.
- Superior Water Reduction: Achieves over 25% water reduction rate, significantly enhancing concrete fluidity.
- Reduced Bleeding & Segregation: Maintains homogeneity during transport and placement.
- Strength Growth: Boosts early and long-term compressive strength—up to 110% increase within one day.
- Low Sodium Sulfate Content: Prevents pipeline crystallization and blockage in winter conditions.
- Excellent Compatibility: Works efficiently with various cement types including OPC, PPC, and slag cement.
Technical Specifications
| Property | Specification |
|---|---|
| Appearance | Brown powder |
| Solid Content | ≥ 92% |
| Sodium Sulfate Content | < 5% |
| Chloride Ion Content | < 0.3% |
| pH Value | 7 ~ 9 |
| Fluidity of Cement Paste | ≥ 250 mm |
| Fineness (0.315 mm sieve) | < 15% |
| Surface Tension | (70±1) × 10⁻³ N/m |
Applications
This superplasticizer is ideal for use in:
- Ready-mix concrete as High Water Reduction
- Precast concrete (pipe piles, blocks, panels)
- C15–C50 grade concrete production
- Grouts & Mortars
- Shotcrete applications
- Self-leveling and high-flowability concrete
- Construction, water conservancy, transportation, port, and municipal projects
- Gypsum board manufacturing
If you are interested in the product, contact Bossgoovideo.com for more information
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