Examination of the Characteristics of Coal Gasification Slag Fine Aggregate and its Effect on the Strength Characteristics of Concrete
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- MATSUURA Yoshitaka
- Tokyo Electric Power Company Holdings, Inc. Civil & architectural engineering management office
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- KOBAYASHI Yasushi
- Tokyo Electric Power Company Holdings, Inc. TEPCO research institute
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- OHNAKA Akira
- Japan Coal Frontier Organization, Research and development department
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- NAGATAKI Shigeyoshi
- Tokyo Institute of Technology, Professor Emeritus Professor
Bibliographic Information
- Other Title
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- 石炭ガス化スラグ細骨材の特徴ならびにコンクリートの強度特性への影響に関する検討
Abstract
<p>The obtained quality data of coal gasification slag fine aggregate (CGS) produced by the integrated coal gasification combined cycle (IGCC) and its characteristics are summarized. The effects of the quality characteristics of CGS on mechanical properties such as the compressive strength of concrete were investigated. From these results, it was considered that CGS is expected to have pozzolanic reactivity because it had almost amorphous and has a chemical composition close to that of coal fly ash. It was also suggested that the degree of strength development of concrete using CGS is affected by chemical components such as the ratio of the modified oxide amount to SiO2 of CGS and the degree of polymerization of amorphous phase (NBO/T). Furthermore, it was confirmed that the modulus of elasticity tends to increase gradually corresponding to the CGS mix ratio, and that the tensile strength can be shown by the correlation with the compressive strength regardless of the CGS mix ratio.</p>
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 71 (10), 847-852, 2022-10-15
The Society of Materials Science, Japan
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Details 詳細情報について
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- CRID
- 1390575285352354560
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- ISSN
- 18807488
- 05145163
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- Text Lang
- ja
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- Data Source
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- JaLC
- Crossref
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- Abstract License Flag
- Disallowed