Sodium Naphthalene Formaldehyde is used for building concrete
Sodium Naphthalene Sulphonate is made from naphthalene, sulfuric
acid, formaldehyde and liquid alkali, through sulfonation,
hydrolyzation, condensation and neutralization reaction and then
drying to powder. SNF-A 5% contains very small chloride.
Uses
1, SNF produces concrete with extremely workable characteristics
referred to as high slump.
2, SNF also allows concrete to be produced with very low
water/cement ratios at low or normal slumps.
3, SNF is ideal for use in prestress, precast, bridge deck or any
concrete where it is desired to keep the water/cement ratio to a
minimum and still achieve the degree of workability necessary to
provide easy placement and consolidation.
4, SNF will also fluidize concrete, making it ideal for tremie
concreting or other applications where high slumps are desired.
5, SNF is compatible with Portland Cement, Normal Portland cement,
Portland Slag Cement, Fly-ash Cement, Portland Pozzolanic Cement,
etc.
Advantages
1 SNF produces high slump flowable concrete with no loss in
strength.
2 SNF produces low water/cement ratio concrete and therefore, high
strengths.
3 SNF, in prestress/precast work, can be used to substantially
reduce or eliminate the high energy requirements of external heat
for accelerated curing.
4 SNF concrete, even at high slump, exhibits no significant
segregation in comparison to concrete without a super-plasticizer
at the same slump.
5 SNF aids in rapid discharge of concrete from truck mixers thereby
reducing on the job time and improving mixer utilization.
| NO | Index items | Test Results |
| 1 | Appearance | Meets the requirement |
| 2 | Solids content (%) | 92.86 |
| 3 | Content of cl- (%) | 0.12 |
| 4 | PH value | 8.09 |
| 5 | Liquidity of Cement Paste (mm) | 248 |
| 6 | Na2SO4 content (%) | 4.84 |
| 7 | Air Content(%) | 1.62 |
| 8 | Water-reducing rate | 18.9 |
Temporal Distribution for setting (min) | Initial Setting time | 90 |
| Terminal Setting time | 90 |
| Corrosion to Steel Bars | None |
SNF can be added directly or added in after melt. It can be added
during mixing and after mixing. The afterward approach can achieve
better result. The suggested addition rate is 0.75%.
Instruction
Prepare solutions as required.
Direct use of powdery agent is allowed. Alternatively the addition
of the agent is followed by water moisturization (water-cement
ratio:60%).
The agent can be combined with other externally applied agents if
pilot development or laboratory test is satisfied.
Package, Storage & Handling
– For powder: Woven fabric bag with plastic liner. Net weight: 25kg
+/- 0.13 kg.
– Cautions should be taken to prevent packages from being torn by
sharp-ended objects while being transferred or delivered. When
being contaminated by high humidity or moisture in case of leakage,
it can be prepared in prescribed ways for further use without
surrendering any effect.
– It should be stored in a dedicated warehouse that is
well-ventilated and dry. It remains effective in one year. After
the expiration date, it can be used again if testing results fall
within the established range.
FAQ:
Q1. Which payment is available for your company?
Re: T/T, L/C, D/A, D/P, Western Union, MoneyGram
Q2. How can I get the sample?
Re: We provide you free sample. But you should pay for the postage.
When we have a formal transaction, we will refund the postage of
this sample.
Q3. How can you guarantee the goods you offer is qualified?
Re: We can provide sample, COA, MSDS and etc to help you insure the
quality. And we promise every batch of product will be tested in
the factory, and they can only leave the factory after the quality
is qualified.
Q4. How can I get your best price?
Re: We will provide you timely market information and the
fluctuation trends of raw material to help you determine the most
appropriate time for an ord
