Use and characteristics: sodium lignosulfonate superplasticizer, the sulfite pulping waste liquor of chemical modification and processing, with medium molecular weight, low reducing sugar content, for concrete admixtures, with low dosage, low gas content, adaptability to the characteristics of cement, especially the most significant point is that with naphthalene superplasticizer, liquid additive made no deep produce.

A) can reduce water consumption by more than 14%.

B) significantly improve workability of concrete.

C) can greatly reduce the hydration heat at the initial stage of cement hydration.

D) no chloride salts, no corrosive action on steel bars.

E) contains no alkali active substance.

Main properties: a) sodium lignosulfonate water reducing agent, in the concrete recommended amount of 0.2%~0.6% (cement weight), users should determine the best amount of the experiment. B) sodium lignosulfonate water reducing agent can be used as liquid. C) sodium lignosulfonate superplasticizer, and naphthalene superplasticizer has obvious effect, dosage and proportion, the user should be used according to the varieties of cement, aggregate, the naphthalene superplasticizer experiments determined.

Note: a) the use of sodium lignosulfonate water reducer, strictly control the amount of admixture, less, the effect is not obvious, and more affect the early strength. (b) when the temperature is below 5 degrees, the general concrete works should not be used alone. C) use parameters should be determined by experiment before use.

Technical indicators: the project index pH value is 8, 0.5, calcium and magnesium content 1.5%, inorganic salt content 3% (less than Na2SO4), reducing material content is 4%, water insoluble 1%, water 7%