Abstract
The corrosion behaviour of mild steel embedded in concrete containing various proportions of clay and partially immersed in sea water, sodium chloride and sodium sulphite solutions respectively was investigated by potential measurements using a digital voltmeter and a copper/copper sulphate electrode. As the proportion of clay in the total concrete mix increased, the corrosion of the mild steel bar embedded in the mix was reduced in all the corrosive test media. This was attributed to a reduction in porosity of the concrete matrix due to the addition of fine clay which hinders the mobility of chloride, sulphide, sulphate and other ions in the sea water. The clay additions also provide increasing bonding strength and cause a reduction in the carbonation process. Sea water was found to be the most corrosive, followed by sodium chloride with the sodium sulphite solution being the least corrosive. (from authors' abstract)
| Original language | English |
|---|---|
| Pages (from-to) | 103-109 |
| Number of pages | 7 |
| Journal | Corrosion Prevention and Control |
| Volume | 36 |
| Issue number | 4 , August, 1989 |
| State | Published - 1989 |
ASJC Scopus subject areas
- Metals and Alloys