钢筋混凝土烟囱的裂缝有垂直的和水平的两种。垂直裂缝过去注意得比较多,一般没有很严重的问题;而水平裂缝,其问题的性质和后果远较前者严重得多:这种裂缝大都是发展的,随着裂缝的发展,宽度渐渐增大,必然会引起钢筋严重锈蚀,造成烟囱筒 Cracks in reinforced concrete chimneys are vertical and horizontal. Vertical cracks have paid more attention in the past and generally do not have very serious problems. Horizontal cracks, however, are far more severe in their nature and consequences than in the former: these cracks are mostly developed, and their width gradually increases with the development of cracks. , it will inevitably cause serious corrosion of the steel bars and cause chimneys