reinforcement rustiness

Recent engineering investigations show that there are more and more destruction cases induced by the descent in durability of reinforced concrete structures. And reinforcement rustiness is very common in these cases.
近年来的工程调查表明,已有建筑因为耐久性问题而发生破坏的情况越来越多,其中因混凝土碳化和钢筋锈蚀需要处理的工程具有普遍性,造成的损失也是难以估量的。