PNS-A Naphthalene sulphonate formaldehyde - PNS-A

Manufacturer selling,annual output 300,000MT,perfect quality and competitive price - details see: https://www.buildingsupplieshub.com/pns-a-naphthalene-sulphonate-formaldehyde-10088447

Place of Origin: Shandong China (Mainland)	Brand Name: WANSHAN	Model Number: PNS-A	Appearance: Light Brown Powder
Solid Content: 92%Min	Sodium Sulphate Content: 5%Max	PH Value: 7-9	Water Reducing Ratio: 18%-28%

PNS-A Naphthalene sulphonate formaldehyde

contact supplier for PNS-A Naphthalene sulphonate formaldehyde

1.Remarkable Plasticity: As a condition of blending where amount of cement and collapsibility are fixed aforehand, mixing water can be decreased by 18-28% 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 5-8 times when it is added at 0.7% blend dosage.
3. 15-20% 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	PNS-A
net starch fluidity (mm )	≥ 250
content of Cl (%)	0.3
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, %		≥ 17	17.9	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)