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High-range Water Reducing Admixture Naphtalene Sulfonate Formaldehyde
SBTJM-A high-range water reducing admixture is a powder of beta-sulphonate formaldehyde condensate. The Na2SO4 content is within 18-20%. It has the performances of non-air-entraining, high-range water reducing and strengthening. It is in particular suitable to produce concrete with the requirement of high water reduction, high-early strength. SBTJM-A is formulated to comply with the following specification for concrete admixture: ASTMC494, Type F; GB8076-1997.
MAIN TECHNICAL PROPERTIES:
Dark Brown Power
Light Brown Powder
Light Brown Powder
Solid content, %
pH value(20℃)(5% solution)
Sodium sulfate content,%
Cement paste fluidity, mm
Water reducing rate, %
High water reduction
Tested according to GB8076-1997, the water reduction is around 16% at the addition rate of 0.5% by weight of cementitious materials.
The addition of SBTJM-A effectively improves the fluidity of the concrete and reduces the bleeding and segregation tendency of concrete. Therefore it improves the workability of the concrete and makes the concrete easy for pumping and compacting.
At the addition rate of 0.5%, it can improve the compressive strength of concrete at the ages of 3d, 7d
and 28d by 65%~75%, 45-55%, 25-35% respectively.
Little change of set time
It has little influence on the initial and final setting time of the concrete. The set time difference between
concrete which SBTJM-A and control concrete is normally within one hour.
Wide range of application temperature
The feasible application temperature ranges from -5℃ to +45℃.
The addition of SBTJM-A can effectively improve the pore structure of the concrete and increase the durability such as impermeability, carbonation resistance and frost resistance.
Easy for use
It can be added directly into concrete or dissolved beforehand into liquid state. It matches the
requirement of different application condition or mixer type.
The normal range of SBTJM-A addition rate is 0.4-0.6% by weight of cementitious material and can be increased to 0.8% for early-strength concrete.
SBTJM-A should be blended previously with cement. Do not add it directly into wet aggregate. It can be dissolved into water solution before used as liquid admixture.
SBTJM-A is packed in the waterproofing double-layer plastic bag and the net weight is 25 kg per bag. It will not degenerate within its shelf life. Pay attention not to stave the bag and keep waterproofing during the storage and transportation. If the product is wetted into agglomeration, it can be crushed into powder before use and has no influence on the performances.
1.Q: What is MOQ?
A: Our MOQ is 1 TON.
2.Q: Could you offer free sample?
A: We can provide free samples to you for quality testing.
3.Q: What about your packing?
A: For liquid: Flexitank, or IBC tank 1000L
For powder:Woven fabric bag with plastic film liner( 25kg or 1000kg)
Clients’ packing is workable.
4.Q: How about your productive capacity?
A: 150000 tons/Year.
5.Q: What is your delivery time?
A: Within 7 days after received deposit or L/C at sight.
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