Experimental studies were carried out in view of whether the self-compacting concrete can be used in underwater projects that have anti-permeability requirements,by the method of contrast experiment,we studied the influence of defoaming agent to the concrete dense degree and apparent quality in concrete. Through the test and analysis found that:after adding defoaming agent into self-compacting concrete,it’s dense degree,apparent quality and strength are improved. Therefore,by adding defoamer can make the concrete component’s dense degree and apparent quality are improved,and it is conducive to improve the durability of concrete.%针对自密实混凝土能否应用于水下有抗渗要求工程进行了试验研究，通过对比试验的方法，研究了在混凝土中添加消泡剂对混凝土的密实度和表面质量的影响，通过测试和分析发现：添加消泡剂后自密实混凝土的密实度、表面质量及强度都得到了提高，因此，采用添加消泡剂的方法能使混凝土构件的密实度及表面质量得到提高，有利于提高混凝土的耐久性。
展开▼
