Sulphonated Naphthalene Formaldehyde liquid
SPL is a sodium salt of poly naphthalene sulphonic acid. It is used as a highly effective water-soluble superplasticizer for concrete. It possesses a powerful water-reducing and dispersing ability whereby high-strength, flowing & self-leveling concrete can be produced. Sprea plasticizer is practically chloride free so it doesn't pose any corrosion hazards to steel reinforcement.
| Parameter | |||||
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Parameter |
Value |
Unit |
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(1) Low |
(2) Medium |
(3) High |
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Sodium sulfate content (by mass) |
0.5-1.0 |
3.0-4.0 |
5 max |
% |
|
Appearance and form |
Clear brown liquid |
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Ionic nature |
anionic |
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Freezing point |
-2 |
0C |
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Boiling point |
105 |
0C |
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Specific gravity at 250C |
1.190 – 1.240 |
gm/cm3 |
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Dilution in water |
Dilutes rapidly in hard or soft water |
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Solubility |
Soluble in water, methanol & acetone |
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Solid content ( by mass ) |
41 - 42 |
% |
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pH at 250C |
7 - 9 |
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Chlorides |
250 max |
ppm |
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Heavy metals |
Not traceable |
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Insolubles |
0.5 max |
% |
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Free formaldehyde |
0.05 max |
% |
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- Ready mix concrete.
- Pre-cast and pre-stressed concrete.
- Marine concrete.
- Gunite concrete. (shotcrete)
- Flowable and pumpable concrete.
- High-performance concrete.
- High fluidity concrete.
- High-strength concrete for dams bridges and high buildings.
- Self-compacting concrete.
- High-durable concrete.
Packing: SPL is supplied mainly in stainless steel tank containers.
Handling: SPL is an alkaline solution that may cause irritation to eyes & skin on direct and prolonged contact. Hands should be thoroughly washed with soap and water before meals and at the end of the working day. Use safety goggles and hand gloves while handling the product.
Storage: SPL must be stored at 25 0C in closed original packing protected from direct sunlight, to give a shelf life of not less than 6 months.
