Naphthalene based superplasticizer is also called sodium naphthalene formaldehyde, which is one of the superplasticizer. Its appearance is dark brown powder, Non-poisonous, odorless, non-flammable and non-corrosive.
This super plasticizer is naphthalene based superplasticizer, it is compound of naphthalene sulfonate formaldehyde condensates sodium salts. It is an additive that increases the plasticity and fluidity of concrete to which it is added.
It can soften the concrete before it hardens,increase concretes workability, reduces water, and not affect the properties of the final concrete structures projects, but improve the strength of concrete.
Napththalene superplasticizer can be applied to make flowable, strong or steam-curing concrete. The minimum working temperature can be as low as 0 C. In steam curing, concrete with superplasticizer has to strong enough before heating. SNF/ NSF can reduce water more than 25%. It has features of superplasticizer, effectively increases concrete fluidity and reduces water penetration and segregation. Therefore, improves concrete placement and makes concrete easy to use and compacting.Strengthening: Given the same amount of cement and slump requirement, this product can increase the concrete stress by 50-110%, 40-90%, 40-70% and 20-40% on day 1, 3, 7, and 28 respectively.
Sodium Naphthalene Formaldehyde Specification:
Solid Content 92% min
Moisture 8.0 % max
Fineness 5.0% max
PH value 7 - 9
Chlorides Content 2.0% max
Surface Tension 68-72 Mn/m
Cement Flowing Rate 230mm min
Concrete Reducing Water Rate 18% min
Sodium Sulfate Content 18% max (5%max is also available)
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