Grouting Defect Detection of Lapped Bar Connections Based on Impact-Echo Method

<div>Smallest detectable horizontal crack or void [<a href="/journals/sv/2019/1934240/#B1">1</a>] (<i>l</i> = length of flaw; <i>d</i> = depth of flaw).</div>

Shock and Vibration

fig3

Figure 3

Figure 3: Grouting Defect Detection of Lapped Bar Connections Based on Impact-Echo Method 