Sodium Naphthalene Formaldehyde (SNF)

Superplast Usual
Sulphonated naphthalene formaldehyde condensate (PNS or BNS or bNS or NSFC or NS or SNF).
It is a second generation of plasticizers or it is called as superplasticizer.


Read More here



Product description:
Solid content, (% min.): 92,00%
Moisture, (% max.): 8,00%
Insoluble, (% max.): 0,20%
pH: 8±1
Cl^-, (% max.): 0,30%
Na₂SO₄ (dry-dry): 19±1%
Na₂SO₄ in ready to be used solution^*: 9±1%
Fineness (pass 0.315mm sieve), (%, min.): 85,00%
^*Ready to be used solution is 40% solution.
Description:
Naphthalene-based highly effective water reducer is a beta-sulphonate formaldehyde condensate with non-air-entraining, superplasticizing, highly effective water reducing and strengthening effects. This product has good compatibility with the very wide range of cement types and easy to use. It is adaptable to prepare normal concrete and steaming-cured concrete with the requirement of highly water reduction and strength. The last and most modern generation of water reducer is polycarboxylic acid salt (so called third generation). It is an aqueous solution of polycarboxylate ether of a certain composition and configuration. Compared with prior generations, the third-generation Polycarboxyl-acid high-efficiency water reducer has intrinsic improvement in performance and quality, qualified to meet basic performance advantages and economic conditions to replace naphthalene.

Main Technical indexes and properties:
• 1. High water reduction: The water reduction of SNF is above 20% according to the relative specifications in in ASTM C 494/C 494 M and EN 934;
• 2. Superplasticizing: The addition of SNF effectively enhances the fluidity of the concrete and reduces the bleeding and segregation tendency. Thus improves the workability of the concrete and makes the concrete easy for construction and compaction;
• 3. High strengthening effect: It has a very good strengthening effect, if you keep the formulation of the concrete constant, the strength of concrete at the age of 1d, 3d, 7d and 28d can increase by 60%~70%, 50-60%, 40-52% and 30-41%, respectively when compared to the reference usual concrete;
• 4. Wide adaptability: This product is adapted to different types of cement, and particularly match with admixtures such as air entering agent and expansive agent, and mineral components, such as fly ash;
• 5. Safety: No corrosive substance to a steel. Not dangerous;
• 6. Wide range of application temperature: The application temperature ranges from -5 °C to +45 °C;
• 7. Excellent durability: The addition of SNF can effectively improve the pore structure of the concrete and increase the durability indexes such as impermeability, carbonation resistance and frost resistance;
• 8. Easy to use: It can be added directly or dissolved beforehand to be liquid admixture. It match the requirement of different application condition or mixer type;

Methods of use and attentions:
• ♦ Blending: Add the admixture directly into the mixer and prolong the blending time a little to ensure well distribution in a concrete.
• ♦ Curing: Careful curing. The concrete should be covered and you have to spray water for wet curing after final setting and to prevent from frost.

After-sale service:
To assist you in obtaining predicated performances, ensure high quality projects, and improve technical level, we offer technical consulting service, site mix proportion design or advising mix proportion. Our technical personnel would give free-charge site assistance service as well as construction technical guide. We conduct consistent services of sale of new products and spreading of new technology.

Appearance:
From beige to brown powder.

Shelf-life: 12 months

Packaging: 25 kgs or 1000 kgs bags, or flaxibags.

If you want to know more just write us to get: info@rosbaltgrupa.lv