Concrete Journal
Online ISSN : 2186-2753
Print ISSN : 0387-1061
ISSN-L : 0387-1061
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Volume 56, Issue 11
Displaying 1-11 of 11 articles from this issue
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  • Test Method for Water Penetration Rate Coefficient of Concrete Subjected to Water in Short Term (Draft) by JSCE
    Y. Sakai, H. Ueda, T. Ishida
    2018 Volume 56 Issue 11 Pages 925-928
    Published: 2018
    Released on J-STAGE: November 01, 2019
    DOIhttps://doi.org/10.3151/coj.56.11_925
    JOURNAL FREE ACCESS
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    The Design edition of the Standard Specifications for Concrete Structures of the Japan Society of Civil Engineers established in 2017 newly introduces an inspection method for steel corrosion accompanying carbonation and water penetration. To check the corrosion of steel caused by the penetration of water, information on the penetration rate of water into concrete is required. In the above Specifications, the penetration rate of water is to be obtained by the expression given in the Specifications or by experiment. This paper explains a test method (draft) established for the purpose of experimentally obtaining the water penetration rate coefficient of concrete subjected to short-term water exposure.

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  • Effective Maintenance Management of Concrete Structures by Using Electrochemical Techniques
    Technical Committee on Effective Maintenance Management of Concrete St ...
    2018 Volume 56 Issue 11 Pages 929-935
    Published: 2018
    Released on J-STAGE: November 01, 2019
    DOIhttps://doi.org/10.3151/coj.56.11_929
    JOURNAL FREE ACCESS
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    This paper gives an overview of the evaluation of the chloride transport resistance of concrete and the results of an investigation of cathodic protection methods as an elemental technology for realizing effective maintenance and management of concrete structures. Regarding the evaluation of chloride transport resistance, the results of round robin tests conducted on the non-steady-state migration test are presented, and regarding cathodic protection methods, performance-based design and maintenance management methods for the future are outlined.

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