Effect of Chemical Composition of C-S-H on Concrete Durability
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- SASAKI Kenji
- Dept. of Sci. & Tech., Niigata Univ.
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- SAEKI Tatsuhiko
- Dept. of Civil Eng., Niigata Univ.
Bibliographic Information
- Other Title
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- C‐S‐Hの組成がコンクリートの耐久性に及ぼす影響
- C-S-H の組成がコンクリートの耐久性に及ぼす影響
- C S H ノ ソセイ ガ コンクリート ノ タイキュウセイ ニ オヨボス エイキョウ
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Abstract
This paper describes the effect of Ca/Si molar ratio of C-S-H on concrete durability. Concrete durability depends on the physical and chemical properties of concrete. The physical and chemical properties of concrete are affected by the kinds and amounts of hydration products. C-S-H is dominant hydration product. And, Ca/Si ratio of C-S-H depends on types of mineral admixtures, mixture proportion and curing period. Therefore, it is important for estimating of concrete durability to clarify the properties of C-S-H. In this study, physical properties, such as density and surface area, of C-S-H with various Ca/Si ratios were measured. And chemical properties, such as chloride binding capacity and releasing due to carbonation were also measured. From the experimental results, physical and chemical properties of C-S-H depend on Ca/Si ratio. Based on these results, the effect of Ca/Si ratio of C-S-H on concrete durability, such as chloride diffusion and chloride binding was examined. The durability of blended cement concrete can be explained qualitatively in consideration of Ca/Si ratio of C-S-H.
Journal
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- Journal of the Society of Materials Science, Japan
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Journal of the Society of Materials Science, Japan 56 (8), 699-706, 2007
The Society of Materials Science, Japan
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Details 詳細情報について
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- CRID
- 1390001205418388096
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- NII Article ID
- 130002085806
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- NII Book ID
- AN00096175
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- COI
- 1:CAS:528:DC%2BD2sXhtVeqtLzO
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- ISSN
- 18807488
- 05145163
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- HANDLE
- 10191/17660
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- NDL BIB ID
- 8925167
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- Text Lang
- ja
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- Data Source
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- JaLC
- IRDB
- NDL
- Crossref
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed