naphthalene sulfonate formaldehyde

详情

 Naphthalene sulfonate Formaldehyde Sodium salts
Description
Naphthalene sulfonate Formaldehyde Sodium salts,also names poly naphthalene sulfonate(PNS),sulfonated naphthalene formaldehyde condensate sodium salts, naphthalene sulfonate formaldehyde condensates sodium salts, sodium naphthalene sulfonate formaldehyde condensates(SNF),naphthalene sulfonate formaldehyde,etc.
 
It is produced in liquid and powder form,brown color,with a special smell,it can improve concrete performance by dispersing cement particles and thus,improving concrete workability and compressive strength.so it is used as raw material for the production of concrete admixtures for ready mixed concrete or mortars.
 
Use
SNF(PNS) is used as a super plasticizer in the production of free flowing concrete for use in :
Slabs and foundations
Walls, columns and piers.
Slender components with densely packed reinforcement.
Textured surface finishes.
 
SNF(PNS) is also used as a water-reducing agent leading to high early strength concrete for use in :
Pre-cast concrete elements
Pre-stressed concrete
Bridges and cantilever structures
Areas of concrete
 
Advantages
SNF provides the following properties :
As a superplasticizer :
Workability is greatly improved. Increased placeability in slender components with packed reinforcement.
Decreases the amount of vibration required.
Normal set without retardation.
Significantly reduces risk of segregation.
 
As a Water reducer :
Up to *0% reduction of water will produce *0% increasing in *8 days compressive strength.
 
Dosage
0.6 % - 1.5 % by weight of cement.
SNF(PNS) is advisable to carry out trial mixes to establish the exact dosage rate required.
SNF is compatible with types of Portland cement,but recommended to have a trial before use it and determine a dosage.
 
Method of use
Normally it is dissolved into *0% solution.
It can also be added directly to the freshly mixed concrete.
 
Technical Data