Development of a simplified nondestructive method for in-situ evaluation of the cover concrete quality and durability design.

开发一种简化的无损方法，用于现场评估保护层混凝土质量和耐久性设计。

• 批准号: 22K14308
• 负责人: NGUYEN HUU・MAY
• 金额: $ 2.41万
• 依托单位: Hiroshima University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Early-Career Scientists
• 财政年份: 2022
• 资助国家: 日本
• 起止时间: 2022-04-01 至 2025-03-31
• 项目状态: 未结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-22K14308/
• 关键词: Cover Concrete; Concrete Duability; Air permeability; Nondestructive test; In-situ measurement; Concrete Durability

I have conducted some preliminary laboratory experiments to determine the impact of measurement temperature on WIST results. Specifically, some of the available specimens were preserved in an environmental chamber in order to conduct WIST measurements at four different temperatures (i.e. 5, 20, 30, and 35 °C). Some of the findings were published in the Construction and Building Materials journal. In addition, various concrete specimens were prepared for other experimental measurements. Before being placed in the environmental chamber, the specimens were processed and dried to the proper level in a room. The influence of measurement temperatures and relative humidities on the WIST results has been prepared for bulk experiments in the fiscal year 2023. Some in-situ measurement conditions with different temperatures and relative humidities were prepared.

我的供词确定了在环境室内保留的温度，以便在四个不同的温度下进行WIST测量（即5、30和35°C）在一个房间中的环境室中，准备了一些具有不同的季节性条件，并制备了相对的测量结果。

项目成果

Effect of temperature on nondestructive measurements for air permeability and water sorptivity of cover concrete

• DOI: 10.1016/j.conbuildmat.2022.127361
• 发表时间: 2022-06
• 期刊: Construction and Building Materials
• 影响因子: 7.4
• 作者: M. H. Nguyen;S. Nishio;K. Nakarai