| 研究課題/領域番号 |
22K14308
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| 研究種目 |
若手研究
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| 配分区分 | 基金 |
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| 審査区分 |
小区分22010:土木材料、施工および建設マネジメント関連
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| 研究機関 | 広島大学 |
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研究代表者 |
NGUYEN HUU・MAY 広島大学, 先進理工系科学研究科(工), 助教 (50912739)
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| 研究期間 (年度) |
2022-04-01 – 2025-03-31
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| 研究課題ステータス |
交付 (2023年度)
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| 配分額 *注記 |
3,770千円 (直接経費: 2,900千円、間接経費: 870千円)
2024年度: 1,170千円 (直接経費: 900千円、間接経費: 270千円)
2023年度: 1,040千円 (直接経費: 800千円、間接経費: 240千円)
2022年度: 1,560千円 (直接経費: 1,200千円、間接経費: 360千円)
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| キーワード | Cover concrete / Concrete Durability / Air permeability / Nondestructive test / Water absorption / Carbonation resistance / Cover Concrete / Concrete Duability / In-situ measurement |
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| 研究開始時の研究の概要 |
In this research, the influence of natural conditions (temperature, relative humidity, wind, solar radiation), and structure conditions at measurement time (surface moisture content and surface temperature) on the WIST results will be investigated through three stages to establish a computational model for predicting water penetration. In parallel, correlations among the WIST results and other concrete properties such as carbonation rate, chloride diffusion coefficient, air permeability, and freeze-thaw resistance will be examined to propose a novel durability design approach.
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| 研究実績の概要 |
I have investigated a new application of WIST to predict concrete's carbonation resistance using the total sprayed water at a moisture content of 5% (rW5). The newly proposed rW5 index emerged as an effective tool for assessing concrete's carbonation resistance. Based on the results obtained, two drafts and reports for two international conferences have almost been finished. In addition, I have started investigating the application of WIST on horizontal surfaces and establishing a novel model predicting carbonation rate based on WIST results. I reported the results at ICCEE 2023 as a keynote speaker.
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| 現在までの達成度 (区分) |
現在までの達成度 (区分)
2: おおむね順調に進展している
理由
Based on careful preparations, the project is launching rather smoothly. Numerous results were obtained and analyzed. SCI publications and reports at international conferences have been prepared.
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| 今後の研究の推進方策 |
I will finalise the two drafts and send them to an English editing service before submitting them to the journals. In addition, additional data will be collected to check the prediction model. I will attend three international conferences to report the results.
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