UNF-B Naphthalene sulphonate formaldehyde

Na2SO4--10% Max(Manufacturer selling,annual output 300,000MT,perfect quality and competitive price)  

1.Remarkable Plasticity: As a condition of blending where amount of cement and collapsibility are fixed aforehand, mixing water can be decreased by 17-25% when it is admixed with reinforced concrete at 0.5-1.0%. Statistically, compression strength on the lst day, the 3 rd day and the 28 th day after single application is increased by 60-95% and 25-50% respectively when it is added at standard blend dosage. As a result, compression strength, tensile strength, buckling strength and modulus of elasticity will be improved to some extent.2. Improve miscibility of concrete amalgamator with water and collapsibility as well. As a condition of equivalent blending, collapsibility can be increased 4-7 times when it is added at 0.7% blend dosage.3. 15-18% of cement can be reserved when the agent is blended at 0.7% blend dosage, which is preconditioned by same collapsibility and strength.

PARAMETERS & ACCEPTANCE CRITERLA  

model   item	UNF-B
net starch fluidity (mm )	≥ 240
content of Cl (%)	0.4
PH value	7-9
surface tension(N/m)	(7 1 ± 1) × 10 -3
solids content(%)	≥ 92
Na 2 SO 4 content(%)	≤10

 

PARAMETERS & ACCEPTANCE CRITERIA FOR REFERENCE

Parameters		Criteria	Actual Results	Parameters		Criteria	Actual Results
Water Reduction, %		≥ 19	19.5	Compression strength, %	1d	≥ 180	200
Water Penetration, %		≤ 90	79		3d	≥ 170	194
Air Content, %		≤ 2.0	1.6		7d	≥ 150	161
Temporal Distribution for setting (min)	Initial setting time	-9 0 +120	+20		28d	≥ 130	142
	Terminal setting time		+13	Shrinkage, %	28d	≤ 130	125
Corrosion to steel bars		None	None
Note: Standard Blend Dosage:0.7 %(as cement amount)

UNF-B Naphthalene sulphonate formaldehyde