Calcium Lignosulfonate is a kind of natural anionic surfaceactive agent processed with sulfurous acid pulping waste throughadvanced production technology. It can work well with otherchemicals and produce early strength agent, slow setting agent,antifreeze and pumping agent . It is widely used in variousconcrete projects such preformed concrete, reinforced concreteand prestressed concrete, especially applicable for commercialconcrete, anti-freezing concrete, waterproof concrete, bulkconcrete, pumping concrete, with high economic benefit.