Calcium Lignosulphonate is a kind of natural anionic surface active agent processed with sulfurous acid pulping waste through advanced production technology. It can work well with other chemicals and produce early strength agent, slow setting agent, antifreeze and pumping agent . It is widely used in various concrete projects such preformed concrete, reinforced concrete and prestressed concrete, especially applicable for commercial concrete, anti-freezing concrete, waterproof concrete, bulk concrete, pumping concrete, with high economic benefit. Major technical indicators : Index name Index Appearance yellow brown or brown powder lignosulphonate 60% Dry matter content 93% PH(1% Aq. solution) 5-7 Moisture 7% Water insoluble matter 2% Inorganic salt 5% Reducing Sugars content 3% . 25kg in PP woven bag lined with plastic film.