由澳大利亚新南威尔士(New South Wal-es)大学建筑研究中心所进行的调查研究表明:造成混凝土建筑物中大部分钢筋锈蚀的唯一因素是保护层不足。对位于海滨和距海滨16英里范围的95座建筑物的观察表明,板和梁的边缘比建筑物表面其它地方的问题更多;大工程比小工程的问题少;而预制混凝土出现的问题比现浇混凝土的要少得多。 Research conducted by the Architectural Research Center at the University of New South Wales, Australia, showed that the only factor responsible for the corrosion of most steel bars in concrete buildings is the lack of protective layers. Observations of 95 buildings located on the waterfront and 16 miles from the seashore show that the edges of the slabs and beams are more problematic than the rest of the building’s surface; major projects have fewer problems than minor ones; and precast concrete has fewer problems In-situ concrete is much less.