Why do ETAs for adhesive anchors prescribe cracked-concrete envelopes tighter than legacy cast‑in placeholders?

Choices

• (A) Bond and breakout resistances degrade once cracks cyclic open around drill holes
• (B) Cracked substrates negate all splitting resistance mechanically
• (C) ETA testing ignores edge distance outright
• (D) Post-installed anchors never interact with reinforcing bars