浅谈引气剂对水工混凝土性能的影响

On Impact of Air-entraining Agent on Hydraulic Concrete Performance

通过试验研究,证明引气剂可以改善水工混凝土的和易性,适量掺入引气剂可提高混凝土的坍落度,降低混凝土的泌水量,提高混凝土的抗冻等级,但抗压强度会降低。引气剂的掺加使混凝土氯离子渗透系数明显降低,抗渗性能提高。

Experimental studies prove that air-entraining agents can improve the workability of hydraulic concrete. The slump of concrete can be increased by suitably adding air-entraining agents, thereby lowering the water secretion of concrete, and improving the frost-resistant level of concrete, but the compression strength will be reduced. Addition of air- entraining agent prominently reduces concrete chloride ion permeability coefficient and improve impermeability.