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。