Sodium Naphthalene Sulphonate Formaldehyde SNF-B
This product is β naphthalene sulfonic acid formaldehyde condensate, soluble in water, stable physical and chemical properties, good effect, is a high performance water reducer. With high dispersibility, low foaming characteristics, high water reducibility, strength, early strength, enhanced superiority, incorporation of this product greatly increase the fluidity of concrete, improve slump, improve workability and construction performance.
This product has no rust on the steel. Widely used in concrete engineering, prefabricated components, sleepers, bridges, tunnels, national defense military projects, water conservancy and hydropower projects, port terminals, aircraft runways, high-rise building projects.
1, the amount of this product is generally 0.5-1%, the recommended dosage of 0.7%. This product can be used as a solution, can also be dry-doped method. Mixing concrete
Transport vehicles can also be incorporated into the construction.
2, the user for the first time using this product or change the cement species, according to the specific circumstances and requirements of the project, make the necessary concrete test.
In the construction process, pay attention to the actual performance of FDN-B incorporation, summed up the use of empirical results, make adjustments to achieve the best results. steam
Maintenance should also determine the reasonable conditions and system of conservation.
|No. Indicator||Indicator name||Indicator range||No. Indicator||Indicator name||Indicator range|
|1||Cement paste fluidity||≥ 240 %||4||Chloride content||≤ 0.4 ％|
|2||Solid content||≥ 93 %||5||Sodium sulfate content||≤ 10 %|
|3||PH value||7 – 9||6||Surface Tension||(71±1)×10-3|
1, the product conforms to the concrete admixture GB8076-97 national first-class product standard.
2, the dosage of 0.5-1% of the amount of cement, water reduction rate of 17-25%; early strength significantly, one day, three days to increase the intensity of 60-95%, twenty-eight days to increase the intensity of 25-50%, long-term Strength has also been greatly improved.
3, in the same water-cement ratio case, the incorporation of 0.7%, slump than the blank to improve more than 4-7 times, still retain the plasticity.
4, save the cement, in the protection of design strength, can save 15-18% of cement.
5, to improve workability and concrete components of the mechanical, structural properties, improve impermeability and durability, and has some frost resistance.
6, FDN-B superplasticizer wide range of applications for high strength concrete, steel and prestressed reinforced concrete, impermeable waterproof concrete, steam curing and nature conservation concrete, large flow concrete, preparation of anti-freeze-thaw concrete and so on.
Packaging and storage:
1. Products using woven bags, lined with plastic film, net weight 25Kg ± 0.5kg.
2. Powder products should be stored in a dry and ventilated warehouse, this product is non-toxic non-flammable, storage to rain, moisture. If caking, crushing or formulated into a solution to use, does not affect the use of performance.