Sodium Naphthalene Sulfonate Formaldehyde FDN (Na2SO4 ≤5%) for Concrete Admixture
SNF-A is an chemical synthesis, non-air entraining superplasticizer. Chemical name: naphthalene sulfonate formaldehyde condensation, it has a strong dispersion of cement particles.
|Name||Naphthalene based superplasticizer SNF-A|
|Appearance||Brown yellow powder|
|Net starch fluidity (㎜)||≥ 230 (㎜㎜)|
|Content of chloride (%)||＜ 0.3(%)|
|Surface tension||(7 1 ± 1) × 10 -3(n/m)|
|Na 2 SO 4 content||＜ 5(%)|
|Water penetration||≤ 90(%)|
|AIR content||≤ 3.0(%)|
➢ Good adaptability to all kinds of cement, improve the operability of concrete, widely used in roads, railways, Bridges, tunnels, power stations, DAMS, high-rise buildings and other projects.
1. Blending dosage at 0.5%-1.0%,0.75% mixing dosage advised.
2. Prepare solutions as required.
3. Direct use of powder agent is allowed,alternatively the addition of the agent is followed by water moisturization(water-cement ratio:60%).
➢ SNF-A can impart mortar quick plasticizing speed, high liquifying effect, low air entraining effect.
➢ SNF-A is of good compatibility with various kind of cement or gypsum binders, other additives such as de-foaming agent, thickener, retarder, expansive agent, accelerator etc.
➢ SNF-A is suitable for tile grout, self-leveling compounds, fair-faced concrete as well as colored floor hardener.
➢ SNF can be used as wetting agent for dry mix mortar to obtain good workability.
☑ Storage and delivery
It should be stored and delivered under dry and clean conditions in its original package form and away from heat.After the package is opened for production,tight re-sealing must be taken to avoid ingress of moisture.
☑ Shelf life
Shelf life 10 months. Use it as early as possible under high temperature and humidity, so as not to increase the probability of caking.
☑ Product safety
Naphthalene based superplasticizer SNF-A does not belong to hazardous material.Further information on safety aspects is given in Material Safety Data Sheet.