Inspection Method of Cracks in Concrete by Using Infrared Camera

红外热像仪检测混凝土裂缝的方法

• 批准号: 03452202
• 负责人: IDEMITSU Takashi
• 金额: $ 3.65万
• 依托单位: Kyushu Institute of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (B)
• 财政年份: 1991
• 资助国家: 日本
• 起止时间: 1991 至 1992
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-03452202/
• 关键词: Infrared Camera; Inspection Method; Crack; Heat Conduction; Remote control; Reflection Method; Infrared Heater

It is very immportant to establish the inspection method of cracks in concrete structure. In order to investigate the inspection method by remote control, the following study was carried out in this paper.(1) A small part of the concrete specimen was heated with an improved soldering copper and by using the infrared camera the heat conduction behavior was recorded. the position of cracks could be found by checking up the disturbance of heat distribution.(2) Infrared rays were applied to the specimen with the infrared heater and the reflected rays from the crack sueface were measured by the infrared cameta. The cracks can be seen in the heat distribution photograph, since the infrared rays do not reflect at the cracks. As the result of the tests, the small cracks 0.2mm in width could be recorded, under the condition when the distance from the infrared camera to the specimen was 6.0-10m

建立混凝土结构裂缝检测方法具有十分重要的意义。为了探索遥控检测的方法，本文进行了以下研究：(1)用改进的焊铜加热混凝土试件的一小部分，并用红外摄像机记录其导热行为。用红外加热器对试件进行红外线照射，用红外热像仪测量裂纹表面的反射光。在热分布照片中可以看到裂缝，因为红外线不会在裂缝处反射。实验结果表明，在红外相机到试件的距离为6.0-10m的条件下，可以记录到0.2 mm宽的小裂纹

项目成果

出光隆,山崎竹博,宮辺和,高山俊一: "赤外線映像装置を用いたひびわれ観測" セメント・コンクリート論文集. No.45. 406-411 (1991)

Takashi Idemitsu、Takehiro Yamazaki、Kazu Miyabe、Shunichi Takayama：“使用红外成像装置观察裂缝”《水泥和混凝土论文》第 45 期。406-411 (1991)。

出光 隆,高山 俊一,宮辺 和: "赤外線映像装置を用いたひびわれ観測" セメント技術年報. 第45巻. 406-411 (1991)

Takashi Idemitsu、Shunichi Takayama、Kazu Miyabe：“使用红外成像装置观察裂缝”水泥技术年度报告第 45 卷 406-411 (1991)。

T.IDEMITSU,T.YAMASAKI,N.MIYABE,S.TAKAYAMA: "Inspection Method of Cracks in concrete by Using Infrared Camera" CAJProceedings of Cement and Concrete. No.45. 406-411 (1991)

T.IDEMITSU、T.YAMASAKI、N.MIYABE、S.TAKAYAMA：“使用红外相机检查混凝土裂缝的方法”CAJ 水泥和混凝土论文集。