Ultrasonic Measurement of Corrosion Depth Development in Concrete Exposed to Acidic Environment

<table class="table-group" width="800px"><tr class="fig-image" id="a"><td><img alt="749185.fig.007a" src="https://static.hindawi.com/articles/ijc/volume-2012/749185/figures/749185.fig.007a.jpg"/></td></tr><tr class="fig-caption"><td align="center"><table><tr><td><b>(a) </b> 16-slice Spiral computed tomography scanner</td></tr></table></td></tr><tr class="fig-image" id="b"><td><img alt="749185.fig.007b" src="https://static.hindawi.com/articles/ijc/volume-2012/749185/figures/749185.fig.007b.jpg"/></td></tr><tr class="fig-caption"><td align="center"><table><tr><td><b>(b) </b>0 day</td></tr></table></td></tr><tr class="fig-image" id="c"><td><img alt="749185.fig.007c" src="https://static.hindawi.com/articles/ijc/volume-2012/749185/figures/749185.fig.007c.jpg"/></td></tr><tr class="fig-caption"><td align="center"><table><tr><td><b>(c) </b>120 days</td></tr></table></td></tr><tr class="fig-image" id="d"><td><img alt="749185.fig.007d" src="https://static.hindawi.com/articles/ijc/volume-2012/749185/figures/749185.fig.007d.jpg"/></td></tr><tr class="fig-caption"><td align="center"><table><tr><td><b>(d) </b>3D reconstruction specimen</td></tr></table></td></tr><tr class="fig-image" id="e"><td><img alt="749185.fig.007e" src="https://static.hindawi.com/articles/ijc/volume-2012/749185/figures/749185.fig.007e.jpg"/></td></tr><tr class="fig-caption"><td align="center"><table><tr><td><b>(e) </b>Cross-sections</td></tr></table></td></tr><tr class="fig-image" id="f"><td><img alt="749185.fig.007f" src="https://static.hindawi.com/articles/ijc/volume-2012/749185/figures/749185.fig.007f.jpg"/></td></tr><tr class="fig-caption"><td align="center"><table><tr><td><b>(f) </b>Scanning layer of cross-section 1-1</td></tr></table></td></tr><tr class="fig-image" id="g"><td><img alt="749185.fig.007g" src="https://static.hindawi.com/articles/ijc/volume-2012/749185/figures/749185.fig.007g.jpg"/></td></tr><tr class="fig-caption"><td align="center"><table><tr><td><b>(g) </b>Scanning layer of cross-section 2-2</td></tr></table></td></tr><tr class="fig-image" id="h"><td><img alt="749185.fig.007h" src="https://static.hindawi.com/articles/ijc/volume-2012/749185/figures/749185.fig.007h.jpg"/></td></tr><tr class="fig-caption"><td align="center"><table><tr><td><b>(h) </b>Scanning layer of cross-section 3-3</td></tr></table></td></tr></table>

<table>Comparison of CT images of specimen exposed to acid solution for different periods.</table>

International Journal of Corrosion

fig7

Figure 7

Figure 7: Ultrasonic Measurement of Corrosion Depth Development in Concrete Exposed to Acidic Environment 