Sodium Naphthalene Sulphonate Formaldehyde SNF-A
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.
|Serial number||Indicator name||Indicator range||Serial number||Indicator name||Indicator range|
|1||Cement paste fluidity||≥ 250 %||4||Chloride content||≤ 0.3％|
|2||Solid content||≥ 93 %||5||Sodium sulfate content||≤ 5 %|
|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 18-28%; the amount of concrete can make the day and three days to increase the intensity of 60-90%, twenty-eight days to increase the intensity of 25-60 % Or more, long-term intensity is still improving.
In the same water-cement ratio, the incorporation of FDN-A (0.7%) is 5-8 times higher than that of non-inclusion slump.
4, when the strength of concrete, slump is basically the same, the incorporation of FDN-A, can save 15-20% of cement.
5, to improve workability and concrete components of the mechanical, structural properties, strong performance, improve impermeability, durability, is the preparation of C70, C80 quality admixture.
6, FDN-A wide range of applications, in particular, to adapt to high-strength, ultra-efficient concrete; steam curing concrete, fluid concrete, impervious concrete, waterproof concrete, plasticized concrete, steel and prestressed reinforced concrete.
1, the amount of the product is generally 0.5-1%, the recommended dosage of 0.6%. 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 SNF-A 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.
Packaging and storage:
1, powder 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 agglomeration,
Can be crushed or formulated into a solution to use, does not affect the use of results.