Abstract
The corrosion behavior of Q235 steel in bentonite clay at various moisture contents was studied using conductivity and electrochemical measurements as well as micro-morphology analysis. The results showed that Na-based bentonite clay exhibited better water absorption, higher conductivity, and lower corrosivity than Ca-based bentonite clay, and the corrosion rate in Na-based bentonite clay was considerably lower than that in the soil of Hunan province. The main corrosion style of steel in the Na-based bentonite clay was local corrosion in clusters. With an increasing moisture content of the bentonite clay, the corrosion potential of the steel decreased, while the corresponding corrosion rate, current density and local corrosion sensitivity firstly increased and then decreased at above 30 wt% moisture. Na-based bentonite clay is a desirable base material as resistance-reducing agents (RRAs) added to the soil for grounding. However, the corrosivity and moisture of the bentonite clay should be considered during the design of grounding RRAs.
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 callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
