Practice Test GeeksAAI - American Concrete Institute Adhesive Anchor Installer Certification Practice Test
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AAI Substrate Preparation & Surface Conditions Flashcards

6 cards from real AAI practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

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  1. When drilling into cracked concrete for adhesive anchors, what additional design consideration is required?

    Answer: Use of crack-rated adhesive and reduced characteristic resistance values

    Cracked concrete reduces the confinement around the anchor, so ACI 318 requires crack-rated products and appropriately reduced capacity values in design.

  2. How should a diamond-cored hole be prepared differently than a hammer-drilled hole for adhesive anchors?

    Answer: Diamond-cored holes require additional roughening because the walls are smooth

    Diamond coring produces a smooth, polished borehole wall that reduces mechanical keying; roughening or special adhesives are required to achieve rated bond strength.

  3. Which condition requires the installer to consult the adhesive manufacturer before proceeding?

    Answer: Lightweight concrete substrate

    Lightweight concrete has different porosity, tensile strength, and bond behavior than normal-weight concrete, requiring manufacturer confirmation of product suitability and capacity values.

  4. What is the minimum concrete compressive strength (f'c) typically required for adhesive anchor installations per ACI 318?

    Answer: 2,500 psi (17 MPa)

    ACI 318 and most ICC-ES evaluation reports specify a minimum f'c of 2,500 psi as the baseline for published adhesive anchor characteristic bond strengths.

  5. Why must the hole diameter for an adhesive anchor be within the manufacturer's specified tolerance?

    Answer: An oversized hole reduces bond area and an undersized hole prevents full insertion

    Adhesive anchor bond strength depends on the annular gap filled by adhesive; holes outside tolerance change adhesive volume, bond area, and anchor alignment.

  6. Before installing adhesive anchors, how should an installer verify that the substrate does not contain hidden rebar that would conflict with the anchor location?

    Answer: Use a rebar locator or cover meter to scan the concrete surface

    A rebar locator (cover meter or GPR scan) non-destructively maps embedded steel, allowing anchor locations to be adjusted before drilling begins.