气渗 meaning in English

air infiltration

The poor gas anti - permeability and carbonation resistance of recycled concrete can be offset by mineral additions
通过加入矿物掺和料，则再生混凝土的抗气渗性和抗碳化性能均可得到改善。
The results indicate that there are some relativity between the gas anti - permeability and carbonation resistance , and both properties of recycled concrete are worse than those of normal concrete
对再生混凝土的抗气渗性和抗碳化性能进行了研究，试验结果表明：再生混凝土的抗气渗性和抗碳化性能之间具有一定的相关性，但该两者均较普通混凝土差。