Study on the influence of chloride content in sea sand on corrosion of reinforcement embedded in concrete for 20 years.
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Accession number;99A0243810
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| Title;Study on the influence of chloride content in sea sand on corrosion of reinforcement embedded in concrete for 20 years. |
| Author;
MATSUNAGA ATSUSHI
(Jpn. Cement Assoc.)
FUKUTE TSUTOMU
(Minist. of Transp., Port and Harb. Res. Inst.)
ONO YOSHINORI
(Jpn. Cement Assoc.)
HAMADA HIDENORI
(Minist. of Transp., Port and Harb. Res. Inst.)
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Journal Title;Cement & Concrete
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Journal Code:F0277A
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ISSN:0371-0718
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VOL.;NO.624;PAGE.28-34(1999)
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| Figure&Table&Reference;FIG.10, TBL.3, REF.1 |
| Pub. Country;Japan |
| Language;Japanese |
| Abstract;This paper describes the conclusion of cooperative research over 20 years by Ministry of Transport Port and Harbour Res. Inst. and Cement Assoc. of Japan on the relation between chloride content and corrosion of the concrete. The exposure locations of the test are 4 points of Tokyo, Kurihama, Sakata and Kagoshima, using exposure conditions (indoor, outdoor, seacoast, tideland and undersea), cements (normal, moderate heat, high-early-strength, blast furnace slag B), concretes by sea sand of various chloride contents and various concrete mixture proportions. As the result, it was proven that, under the condition of seashore, undersea or the normal atmosphere by indoor or outdoor, the suppression of the rusting of the reinforcement is possibl by satisfying the regulation for initial chloride quantity and the water cement ratio according to Japan Soc. of Civil Engineers concrete standard specifications. However, by the ocean or severe environmental condition like tide area or splashing area, the countermeasures of the institute is insufficient. It was clarified that positive corrosion prevention measures which can cut out the ingress of the salinity is necessary. |
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