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YL-SNF-C High Range Water Reducing Concrete Admixture
Superplasticizer ASTM C**4, Type F, ASTM C ***7
Sodium Naphthalene Sulfonate Formaldehyde (Na2SO4≤*8%)
 
Description
YL-SNF-C 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-C contains no chloride,non-corrosive to steel bars,non-poisonous, odorless,andnon-flammable. Itcomplies with ASTM Designation C**4, Type F, ASTM C ***7, GB****-***8 and GB*********3 etc.
 
Uses

• 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.
• Highwater reducing rate. *0% increase in *8 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.
•  
   
  Specifications
   

  Items	Criteria	Actual results(C×0.*5%)
  Appearance	*-	Brown powder
  Solid Content %	90 min	90.5
  PH value	7 - 9	8.5
  Sodium Sulfate Content %	*2 max	*1.5
  Chloride Content %	0.6 max	0.24
  Surface Tension	****2 Mn/m	*0
  Cement Flowing Rate	**0mm	**0mm
  Water Reducing Rate	*8% min	*0%
  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-C+ can be added directly or added in afterdissolved in water. It can be added during mixing and after-mixing (better). The after-mixing approach can achieve better result.
   
  Package, Storage & Shelf Life
   
  For powder: Woven plastic bag with film liner. Net weight: *5kg +/- 0.2 kg.
   
  It should be stored in a dedicated warehouse that is well-ventilated and dryand keep
  away from moisture.
   
  Shelf Life: Minimum *2 months.After the expiration date, it can be used if testing results isqualified.