Lignosulfonates(LS),as of strong retardation,could improve concrete workability and reduce slump loss,yet could also be hazardous to development of earth strength.

• 木质素磺酸盐(简称木盐)具有较强缓凝作用,可提高混凝土工作性、减少坍落度损失,但不利于早期强度发展。