Diagnosing Concrete Delamination: Chain Drag vs Hammer Sounding and What Each Misses
Introduction Delamination in concrete is when layers or patches separate, revealing hollow or weaker zones beneath the surface. Using a chain drag helps you feel for soft spots by listening and feeling where the chain catches. Hammer sounding can also reveal hollow tones, but it may miss shallow or narrow separations. Both tests have limits […]
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