Product introduction:

Sodium naphthalene sulfonate for concrete contain 5%, 10%, 18% three different specifications due to different sodium sulphate content. Because of its stable performance, non-poisonous, odorless, non-flammable, non-corrosive to steel bars and much better than sodium ligno and calcium ligno series product, it is more and more popular in construction industry. The main properties is high-efficient water reducing, increasing cement paste fluidity, and improving concrete strength etc.

Product indicators:

Naphthalene superplasticizer
	Snf-5%	Snf-10%	Snf-18%
appearance	Yellow brown powder
Solid content	≥92%
Sodium sulfate	＜5%	＜10%	＜18%
chliridion	＜0.3%	＜0.4%	＜0.5%
Ph value	7-9
Content paste fluidity	≥250mm	≥240mm	≥230mm
Surface tension	(70±1)×10^-3N/M

 

 

 

Inspection item		Snf-5%	Snf-10%	Snf-18%
Water-reducing		22	20.1	20
Bleeding rate		79	80	85
Air content		2.0
Setting time	Initial time	+22
	Final time	+16
Compressive strength rate	1d	156
	3d	152
	7d	146
	28d	138
Rate of shrinkage	90d	82
The degree of reinforcement corrasion		Not have

Feature:

1. The concrete strength and slump in substantially the same, can reduce the amount of cement 10-25%.

2. In the same water/cement ratio, the concrete initial slump raise more than 10cm and water reducing ratio of 15-25%.

3. The concrete has a significant early strength, the reinforcing effect, the strength of improved rate of 20-60%.

4. To improve the workability of concrete, improve the physical and mechanical properties of concrete.

5. Good adaptability to various cement, and other various types of concrete admixtures compatibility is good.

6. Is particularly suitable for use in the following concrete projects: flowing concrete, plastic concrete, steam curing concrete, impervious concrete, waterproof concrete, nature conservation precast concrete, reinforced and prestressed concrete, high strength ultra-high strength concrete .

7. When the loss of a large concrete slump, slump loss of nearly half an hour to 40%.High water reducing rate (15% ~ 25%), not bleed air, small influence on the setting time, and cement adaptability is relatively good, can be used with other complex admixture of, the price is relatively cheap.