Model: | - |
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Brand: | - |
Origin: | Made In China |
Category: | Chemicals / Other Chemicals |
Label: | Concrete chemical , Concrete agent , Concrete admixture |
Price: |
-
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Min. Order: | - |
Last Online:01 Jun, 2015 |
Description
YL-SNF-A is a high range water reducer, high concentration naphthalene-based superplasticizer, also named Naphthalene Sulfonate Formaldehyde Condensate (NSF), SNF, PNS and FDN etc.
YL-SNF-A (Na2SO4≤5%) contains no chloride, non-corrosive to steel bars, non-poisonous, odorless, and non-flammable. Thus, it meets the requirements of chemical admixture specifications for concrete, complying with ASTM C 494, Type F. ASTM C 1017, GB8076-2008 and GB50119-2003 etc.
Uses
Advantage
Specifications
Items |
Criteria |
Actual results(C×0.75%) |
Appearance |
-- |
Brown powder |
Solid Content % |
92 min |
92.65 |
Moisture % |
8.0 max |
7.35 |
Fineness (0.315mm remains) % |
15.0 max |
9.2 |
PH value |
7 - 9 |
8.5 |
Sodium Sulfate Content % |
5.0 max |
3.8 |
Chloride Content % |
1.0 max |
0.11 |
Surface Tension |
68-72 Mn/m |
71 |
Cement Flowing Rate |
240mm |
265mm |
Water Reducing Rate |
20% min |
22.3% |
Steel-bar Corrosion |
None |
None |
Dosage
0.5-1.2% by weight of cement. Exact dosage rates depend 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-A 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 (%) |
Compressive strength (MPa) /Compressive strength rate (%) |
|||
|
|
|
|
|
1 day |
3 days |
7 days |
28 days |
Reference concrete |
0 |
2555 |
82 |
0 |
4.34/100 |
13.70/100 |
20.19/100 |
24.06/100 |
YL-SNF-A |
0.75 |
1986 |
89 |
22.3 |
7.63/173.3 |
23.85/173.4 |
30.84/150.7 |
33.72/137.2 |
Package, Storage & Shelf Life
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.