Abstract
In order to improve the durability of coral aggregate seawater concrete (CASC) structures, the influences of exposure time, concrete strength, concrete cover thickness, steel type and inhibitor addition method on the steel corrosion behavior of CASC were investigated and the law of steel corrosion in CASC was obtained. This showed that the steel anticorrosion capacity of CASC structures in the marine environment is 316 stainless steel > new organic coated steel > common steel; this suggests common steel should not be used in CASC structures. In addition, both traditional addition and preabsorption of an amino alcohol inhibitor (AA) result in the enhancement of the anticorrosion capacity of CASC. Moreover, the effect of anticorrosion by preabsorption is better than by traditional addition. Therefore, for CASC structures in marine engineering, it is recommended to choose new organic coating steel, that the thickness of the concrete cover be at least 55 mm, and that the concrete strength reach C50 and preabsorption of AA. In this way, the durability of a CASC structure can be improved and its effective service life can be prolonged.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
