Strength Properties of Fly-Ash Concrete Placed and Cured in the Field
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- ZHANG Wenbo
- Grad. School of Yamaguchi Univ.
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- YOSHITAKE Isamu
- Grad. School of Yamaguchi Univ.
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- OGAMI Eri
- Grad. School of Yamaguchi Univ.
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- MIMURA Yoichi
- Kure National College of Tech.
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- SAITOH Tadashi
- Energia Eco Materia CO., INC.
Bibliographic Information
- Other Title
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- 屋外で作製・養生するフライアッシュコンクリートの強度特性
- オクガイ デ サクセイ ヨウジョウ スル フライアッシュ コンクリート ノ キョウド トクセイ
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Abstract
This paper presents compressive and tensile strengths of fly-ash concrete, which is classified as type II in the JIS. Fly-ash concretes were made in different seasons, including summer, autumn and winter. The concretes were made in a ready-mixed concrete plant and were cured in the field to simulate actual construction conditions. To investigate fundamental mechanical properties of the fly-ash concretes, strength tests were conducted at several ages. The paper gives the results of compressive strength, splitting tensile strength and uniaxial tensile strength tests. The study uses the Goral curve for the regression of compressive strength developed with an equivalent age based on the maturity. In the regression result, the coefficient of the Goral curve develops with lower temperatures. The results imply that evaluations using the equivalent age are not always appropriate for predicting the compressive strength of fly-ash concrete. According to comparative results of tensile strengths, the splitting tensile strength of fly-ash concrete can be predicted by using the JSCE design formula. In addition, the results indicate the uniaxial tensile strength of fly-ash concrete is higher than the splitting tensile strength at all test ages. A relationship between splitting strength and uniaxial strength, proposed by Yoshimoto, gives a conservative estimate for the evaluation of fly-ash concrete cracking strength.
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 61 (3), 267-272, 2012
The Society of Materials Science, Japan
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Keywords
Details 詳細情報について
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- CRID
- 1390001205445035136
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- NII Article ID
- 130002085022
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- NII Book ID
- AN00096175
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- COI
- 1:CAS:528:DC%2BC38XmtlWqurs%3D
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- ISSN
- 18807488
- 05145163
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- NDL BIB ID
- 023598361
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- Text Lang
- ja
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- Data Source
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- JaLC
- IRDB
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed