抄録
A detailed investigation on 30-year-old concrete specimens of 150 and 300 mm in diameter and height, respectively, made with ordinary Portland cement (OPC), high early-strength portland cement (HES), moderate heat portland cement (MH), Type B slag cement (SCB), and alumina cement (AL) was carried out. Three steel bars were embedded at cover depths of 20, 40, and 70 mm. Carbonation depth, water- and acid-soluble chloride contents, and electrochemical and physical evaluation of corrosion were evaluated. Chloride ingress in concrete was lower for slag and alumina cements compared with the others. More corrosion over the steel bars, however, was found for alumina cement due to the porous steel-concrete interface. The surface condition of the steel bars embedded in concrete made with slag cements remains the same as the initially polished condition. Using slag cement is concluded as one of the best choices to improve the long-term durability of marine concrete structures.
| 元の言語 | 英語 |
|---|---|
| ページ（範囲） | 13-18 |
| ページ数 | 6 |
| ジャーナル | ACI Materials Journal |
| 巻 | 101 |
| 発行部数 | 1 |
| 出版物ステータス | 出版済み - 1 2004 |
| 外部発表 | Yes |
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All Science Journal Classification (ASJC) codes
- Civil and Structural Engineering
- Building and Construction
- Materials Science(all)
これを引用
Concrete after 30 years of exposure - Part II : Chloride ingress and corrosion of steel bars. / Mohammed, Tarek Uddin; Hamada, Hidenori; Yamaji, Toru.
：: ACI Materials Journal, 巻 101, 番号 1, 01.2004, p. 13-18.研究成果: ジャーナルへの寄稿 › 記事
}
TY - JOUR
T1 - Concrete after 30 years of exposure - Part II
T2 - Chloride ingress and corrosion of steel bars
AU - Mohammed, Tarek Uddin
AU - Hamada, Hidenori
AU - Yamaji, Toru
PY - 2004/1
Y1 - 2004/1
N2 - A detailed investigation on 30-year-old concrete specimens of 150 and 300 mm in diameter and height, respectively, made with ordinary Portland cement (OPC), high early-strength portland cement (HES), moderate heat portland cement (MH), Type B slag cement (SCB), and alumina cement (AL) was carried out. Three steel bars were embedded at cover depths of 20, 40, and 70 mm. Carbonation depth, water- and acid-soluble chloride contents, and electrochemical and physical evaluation of corrosion were evaluated. Chloride ingress in concrete was lower for slag and alumina cements compared with the others. More corrosion over the steel bars, however, was found for alumina cement due to the porous steel-concrete interface. The surface condition of the steel bars embedded in concrete made with slag cements remains the same as the initially polished condition. Using slag cement is concluded as one of the best choices to improve the long-term durability of marine concrete structures.
AB - A detailed investigation on 30-year-old concrete specimens of 150 and 300 mm in diameter and height, respectively, made with ordinary Portland cement (OPC), high early-strength portland cement (HES), moderate heat portland cement (MH), Type B slag cement (SCB), and alumina cement (AL) was carried out. Three steel bars were embedded at cover depths of 20, 40, and 70 mm. Carbonation depth, water- and acid-soluble chloride contents, and electrochemical and physical evaluation of corrosion were evaluated. Chloride ingress in concrete was lower for slag and alumina cements compared with the others. More corrosion over the steel bars, however, was found for alumina cement due to the porous steel-concrete interface. The surface condition of the steel bars embedded in concrete made with slag cements remains the same as the initially polished condition. Using slag cement is concluded as one of the best choices to improve the long-term durability of marine concrete structures.
UR - http://www.scopus.com/inward/record.url?scp=3042628993&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=3042628993&partnerID=8YFLogxK
M3 - Article
VL - 101
SP - 13
EP - 18
JO - ACI Materials Journal
JF - ACI Materials Journal
SN - 0889-325X
IS - 1
ER -