]>Image-Based Framework for Concrete Surface Crack Monitoring and Quantification : Figure 16
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215295.fig.0016b
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Figure 16: (a) Displacements versus time at mid-span; (b) measured load amplitude versus displacement at the mid-span, and the extracted average crack widths at 𝑇 1 , 𝑇 2 , and 𝑇 3 .