Sodium Lignin Sulfonate

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Sodium Lignin Sulfonate

Sodium lignin sulfonate is a water-solubleanionic surfactant, composed of high polymers. It comes from waste liquid ofwood pulp, going through sulfite process, filtration, concentration, sulfonation, spray drying and soon. Compared to concrete without our product, concrete mixed with it showsabout 10% higher compressive strength, and its water reducing rate ranges from8% to 14%.

Sodium lignin sulfonate issuitable for in-situ concrete, precastconcrete, plain concrete, reinforced concrete and prestressed concrete. Also, it is mainly used ascompound raw material of water-reducing admixture and multifunction superplasticizer in the field ofconcrete admixture.

Technical Specifications

Items	Specification
Appearance	Yellow brownish or brownish powder
PH value	5.5 ~ 8.5
Moisture (%)	≤ 7
Water insoluble matter (%)	≤ 0.5
Reductive matter (%)	≤ 12
Calcium and Magnesium content (%)	≤ 1.0
Air content (%)	≤ 3.8
Lignin sulfonate content (%)	≥ 55

Dosage and Usage
1. Powder dosage ranges from0.2% to 0.3% of the weight of cementing material.
2. This product should be added to the mixer together with mixing water,with over 3 minutes of mixing time. Adding admixtures or not has no influenceon concrete pouring, concrete vibrating and so on.

Packaging
This product adoptsdouble package, packed in polypropylene woven bag with plastic film liner. Eachbag weighs 25±0.13 kg.