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In-situ X-ray microcomputed tomography monitoring of steel corrosion in engineered cementitious composite (ECC)
Highlights Monitoring of steel corrosion in ECC is conducted by using X-ray microcomputed tomography. Rust can fill and compress pores near the corroded steel, for both mortar and ECC. Cracks tend to extend from rust-filled pores and propagate radially through ECC. A significant amount of rust remains in the cracks of ECC. The image segmentation method can evaluate the volume loss of steel in ECC.
Abstract Real-time and in-situ monitoring of the corrosion process of steel reinforcement covered by engineered cementitious composites (ECC) was conducted by using high-resolution X-ray microcomputed tomography. The test results revealed vividly that the corrosion-induced rusts fill into the pores near the steel and extend along the radial cracks towards the sample surface. Compared to plain mortar, ECC exhibits a few more microcracks and uniform crack distribution. While massive leaching of rust is found in the plain mortar, a significant amount of rust remains in the cracks of ECC. Through the image segmentation method, the volume loss of steel in ECC can be quantitatively monitored.
In-situ X-ray microcomputed tomography monitoring of steel corrosion in engineered cementitious composite (ECC)
Highlights Monitoring of steel corrosion in ECC is conducted by using X-ray microcomputed tomography. Rust can fill and compress pores near the corroded steel, for both mortar and ECC. Cracks tend to extend from rust-filled pores and propagate radially through ECC. A significant amount of rust remains in the cracks of ECC. The image segmentation method can evaluate the volume loss of steel in ECC.
Abstract Real-time and in-situ monitoring of the corrosion process of steel reinforcement covered by engineered cementitious composites (ECC) was conducted by using high-resolution X-ray microcomputed tomography. The test results revealed vividly that the corrosion-induced rusts fill into the pores near the steel and extend along the radial cracks towards the sample surface. Compared to plain mortar, ECC exhibits a few more microcracks and uniform crack distribution. While massive leaching of rust is found in the plain mortar, a significant amount of rust remains in the cracks of ECC. Through the image segmentation method, the volume loss of steel in ECC can be quantitatively monitored.
In-situ X-ray microcomputed tomography monitoring of steel corrosion in engineered cementitious composite (ECC)
Qiu, Qiwen (author) / Zhu, Jihua (author) / Dai, Jian-Guo (author)
2020-09-06
Article (Journal)
Electronic Resource
English
| British Library Online Contents | 2017
| British Library Online Contents | 2017
| British Library Online Contents | 2017