Sodium Lignosulphonate used as concrete water reducer
Sodium Lignonsulphonate:
Sodium lignosulfonate (sodium salt of lignosulfonic acid) is a
natural polymer and anionic surfactant. Its appearance is brown
powder or liquid, no special odor, non-toxic, easily soluble in
water and lye, precipitated by acid, and has strong dispersing
ability. As a kind of surfactant, sodium lignosulphonate can
produce multiple products through modification, processing,
compounding and other methods, mainly used in concrete, cement,
resin, rubber, dye, pesticide, ceramics, asphalt, feed, water
treatment , coal water slurry, refractories, oil field drilling,
compound fertilizers, smelting, casting, adhesives.
Sodium Lignosulfonate As Concrete Water Reducer
Sodium lignosulfonate can be used as an admixture for polymers and
concrete, and has the advantages of low cost, high efficiency,
strong market competitiveness and environmental protection. At
present, the construction industry is the largest demand for sodium
lignosulfonate. That’s because it has excellent properties such as
high water-reducing performance, low slump loss, high strength and
retardation. And this product can adsorb and disperse cement, and
improve various physical properties of concrete. In addition,
sodium lignosulphonate powder can be formulated into early strength
agent, retarder, antifreeze, pumping agent.
| NO | Index items | Standard value | Test Results |
| 1 | Appearance | Yellow Brown powder | Meets the requirement |
| 2 | PH Value(1% soluble) | 6-9 | 7 |
| 3 | Dry matter | 93%min | 93.50 |
| 3 | Moisture | 7.0%max | 6.5 |
| 4 | lignosulphonate | 60%min | 61.40 |
| 5 | Total reducing matter | 3.0% max | 2.5 |
| 6 | Inorganic salt (Na₂SO₄) | 2.0%max | 0.5 |
| 7 | Water insoluble matter | 2.0%max | 1.85 |
| 8 | Calcium Magnesium General quantity | 0.5%max | 0.25 |
| 9 | Viscosity(20% aqueous solution 18-20℃) | 7-10 | 8.7 |
Features of Sodium lignin sulfonate
1, Reduce water consumption by more than 14%.
2, Strong adaptability to various cements.
3, Improve the workability of concrete.
4, Reduce the heat of hydration in the early stage of cement
hydration.
5, Chlorine-free and non-corrosive to steel bars.
6, It has an obvious compounding effect with naphthalene based
superplasticizer.
7, According to the type of cement, the condition of the aggregate,
the type of naphthalene superplasticizer, etc., we need to test and
then determine the dosage and ratio.
8, The recommended dosage of sodium lignosulfonate in concrete is
0.2%~0.6% (cement weight), and we should determine the optimal
dosage after passing the test.
Packaging and storage
1. Powder products are made of chemical fiber woven bags, lined
with plastic film bags, each bag net weight (40±0.2kg) or
(25±0.2kg) or (750±0.2kg), can also be customized according to
customer requirements.
2. Powder products should be stored in dry and ventilated special
warehouse, products such as damp caking can be crushed or dissolved
into water agent use does not affect the actual effect.
FAQ:
Q1. Which payment is available for your company?
Re: T/T, L/C, D/A, D/P, Western Union, MoneyGram
Q2. How can I get the sample?
Re: We provide you free sample. But you should pay for the postage.
When we have a formal transaction, we will refund the postage of
this sample.
Q3. How can you guarantee the goods you offer is qualified?
Re: We can provide sample, COA, MSDS and etc to help you insure the
quality. And we promise every batch of product will be tested in
the factory, and they can only leave the factory after the quality
is qualified.
Q4. How can I get your best price?
Re: We will provide you timely market information and the
fluctuation trends of raw material to help you determine the mos
