Evaluation Law of Bond Behavior of Sea Sand Concrete-Embedded Anode
CUI Lei
GAO Xiaojian
SUN Ming
Abstract：To investigate the protective effect of embedded anode cathodic protection on steel corrosion in sea sand concrete,the evolution of interfacial bond performance after anode consumption was studied through bond-slip tests and backscattered analysis.A bond-slip constitutive model was developed based on experimental data,and a long-term usable embedded zinc alloy anode protection scheme was proposed.The results show that after 360 days of seawater immersion,the bond strength between steel bars and sea sand concrete decreases by 30%due to steel corrosion.The bond strength between steel bars and concrete remains unchanged after applying the embedded zinc alloy anode cathodic protection system.The bond strength increases slightly after corrosion of the embedded zinc alloy anode,and the generated calcium zincate corrosion products show almost no expansion.
Keywords：sea sand concretecathodic protectionembeddedbond-slipconstitutive model
Publication Date：2025-11-30
Online Publishing Date：2025-12-09(First online date of this platform, not the publication date of the document)
Pages：8( 1062-1068,1076 )