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SNF/PNS/FDN Sodium Naphthalene Sulphonate Formaldehyde/Poly Naphthalene Sulfonate
Snf/pns/fdn Sodium Naphthalene Sulphonate Formaldehyde/poly Naphthalene Sulfonate , Find Complete Details about Snf/pns/fdn Sodium Naphthalene Sulphonate Formaldehyde/poly Naphthalene Sulfonate,Naphthalene Sulfonate Formaldehyde,Naphthalene Sulfonate Superplasticizer,Polynaphthalene Sulfonte from Concrete Admixtures & Mortar Admixtures Supplier or Manufacturer-Far East Yu La Industry Limited (Shanghai)
$480 /Ton
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Product Description
YL-SNF-B is a naphthalene-based highly effective water reducing agent for promoting
accelerated early and ultimate strength development, commonly referred to as a superplasticizer, also named Naphthalene Sulfonate Formaldehyde Condensate (NSF), SNF, PNS and FDN etc.
YL-SNF-B contains no chloride, non-corrosive to steel bars, non-poisonous, odorless, and non-flammable. It complies with ASTM Designation C494, Type F, ASTM C 1017, GB8076-2008 and GB50119-2003 etc.
Usage
- Produces the high slump flowing concrete with no loss in strength.
- Produces low water/cement ratio concrete with high strengths.
- Ideal for using in high strength concrete, flowing concrete, early strength concrete, precast steam curing concrete, prestressed concrete etc. 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.
- Be used as basic material to produce others compound admixtures, (such as accelerating and water-reducing admixture, retarding and water-reducing admixture, pumping antifreeze and pumping water-reducing admixture, etc.)
Advantages
- Substantial improvement in workability without increased water or the risk of segregation. Normal set without retardation, even when overdosed. Improved density and surface finish.
- High water reducing rate. 40% increase in 28 day strengths. High strengths after 8 hours.
- Compatible with Portland cement, Normal Portland cement, Portland Slag Cement, Flyash Cement, Portland Pozzolanic Cement, etc.
- Improve workability (slump) of concrete when added into mixing truck.
Specification
Items | Criteria | Actual results(C×0.75%) |
Appearance | -- | Light brown powder |
Solid Content % | 90 min | 90.55 |
Moisture % | 10.0 max | 9.45 |
Fineness (0.315mm remains) % | 15.0 max | 9 |
PH value | 7 - 9 | 7.8 |
Sodium Sulfate Content % | 9.0 max | 8 |
Chloride Content % | 1.0 max | 0.21 |
Surface Tension | 68-72 Mn/m | 70 |
Cement Flowing Rate | 230mm | 240mm |
Water Reducing Rate | 18% min | 20% |
Steel-bar Corrosion | None | None |
Dosage
0.5 – 1.5% by weight of cement. Exact dosage rates are dependent on the type of effect
sought, quality of cement and aggregates, water/cement ratio and ambient temperature. Therefore, in many cases it is advisable to carry out trial mixes.
YL-SNF-B can be added directly or added in after dissolved in water. It can be added during
mixing and after-mixing (better). The after-mixing approach can achieve better result.
Test Data Sheet
Items | Dosage rate (Cx%) | Water (g) | Slump (mm) | Water reducing rate (%) | ||
YL-SNF-B | 0.75 | 2090 | 75 | 20.1 | ||
Compressive strength (MPa) /Compressive strength rate (%) | ||||||
1 day | 3 days | 7 days | 28 days | |||
3.16/100 | 12.89/100 | 18.62/100 | 22.72/100 | |||
6.87/217.1 | 22.54/174.7 | 29.12/156.3 | 35.92/158.1 | |||
Packaging & Shipping
For powder: Woven plastic bag with film liner. Net weight: 25kg +/- 0.2 kg.
It should be stored in a dedicated warehouse that is well-ventilated and dry and keep
away from moisture.
Shelf Life: Minimum 12 months. After the expiration date, it can be used if testing results is qualified.
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