ACI ADHESIVE ANCHOR INSTALLER
CERTIFICATION EXAM Questions and Correct
Answers (Verified Answers) Plus Rationales
2026 Q&A | Instant Download Pdf
1. What is the primary purpose of adhesive anchors in concrete?
A. To increase concrete curing speed
B. To bond threaded rods or rebar into drilled holes
C. To reduce concrete shrinkage
D. To waterproof concrete surfaces
Answer: B
Adhesive anchors are designed to bond steel elements into
concrete using chemical adhesives.
2. Which type of adhesive anchor is most commonly used for
structural applications?
A. Latex-based adhesive
B. Epoxy adhesive
C. Asphalt mastic
D. Silicone sealant
Answer: B
Epoxy adhesives provide high strength and durability required for
structural loads.
3. Why is hole cleaning critical before installing an adhesive anchor?
A. It improves drill speed
B. It increases hole diameter
, C. It ensures proper bond strength
D. It reduces adhesive curing time
Answer: C
Dust and debris can prevent proper bonding between the adhesive
and concrete.
4. What tool is typically used to clean drilled holes for adhesive
anchors?
A. Hammer
B. Wire brush and air blower
C. Trowel
D. Steel float
Answer: B
Proper cleaning requires brushing and blowing out dust from the
hole.
5. What happens if moisture is present in a hole not rated for wet
conditions?
A. Adhesive cures faster
B. Bond strength may be reduced
C. Load capacity increases
D. Hole diameter decreases
Answer: B
Some adhesives are sensitive to moisture, which can weaken bond
performance.
6. Which factor most affects the load capacity of an adhesive
anchor?
A. Color of adhesive
B. Hole depth and diameter
, C. Brand name of adhesive
D. Ambient noise level
Answer: B
Embedment depth and hole diameter directly influence anchor
strength.
7. What is the recommended method for mixing two-component
adhesive cartridges?
A. Manual stirring
B. Shaking the cartridge
C. Using a static mixing nozzle
D. Heating before use
Answer: C
Static mixing nozzles ensure proper proportioning and mixing.
8. Why should the first portion of adhesive from a new cartridge be
discarded?
A. It is expired
B. It contains unmixed material
C. It cures too fast
D. It is contaminated with air only
Answer: B
Initial adhesive may not be properly mixed and should not be used.
9. What is the typical orientation limitation for adhesive anchor
installation?
A. Horizontal only
B. Vertical only
C. Limited by adhesive type and approval
D. Cannot be overhead
CERTIFICATION EXAM Questions and Correct
Answers (Verified Answers) Plus Rationales
2026 Q&A | Instant Download Pdf
1. What is the primary purpose of adhesive anchors in concrete?
A. To increase concrete curing speed
B. To bond threaded rods or rebar into drilled holes
C. To reduce concrete shrinkage
D. To waterproof concrete surfaces
Answer: B
Adhesive anchors are designed to bond steel elements into
concrete using chemical adhesives.
2. Which type of adhesive anchor is most commonly used for
structural applications?
A. Latex-based adhesive
B. Epoxy adhesive
C. Asphalt mastic
D. Silicone sealant
Answer: B
Epoxy adhesives provide high strength and durability required for
structural loads.
3. Why is hole cleaning critical before installing an adhesive anchor?
A. It improves drill speed
B. It increases hole diameter
, C. It ensures proper bond strength
D. It reduces adhesive curing time
Answer: C
Dust and debris can prevent proper bonding between the adhesive
and concrete.
4. What tool is typically used to clean drilled holes for adhesive
anchors?
A. Hammer
B. Wire brush and air blower
C. Trowel
D. Steel float
Answer: B
Proper cleaning requires brushing and blowing out dust from the
hole.
5. What happens if moisture is present in a hole not rated for wet
conditions?
A. Adhesive cures faster
B. Bond strength may be reduced
C. Load capacity increases
D. Hole diameter decreases
Answer: B
Some adhesives are sensitive to moisture, which can weaken bond
performance.
6. Which factor most affects the load capacity of an adhesive
anchor?
A. Color of adhesive
B. Hole depth and diameter
, C. Brand name of adhesive
D. Ambient noise level
Answer: B
Embedment depth and hole diameter directly influence anchor
strength.
7. What is the recommended method for mixing two-component
adhesive cartridges?
A. Manual stirring
B. Shaking the cartridge
C. Using a static mixing nozzle
D. Heating before use
Answer: C
Static mixing nozzles ensure proper proportioning and mixing.
8. Why should the first portion of adhesive from a new cartridge be
discarded?
A. It is expired
B. It contains unmixed material
C. It cures too fast
D. It is contaminated with air only
Answer: B
Initial adhesive may not be properly mixed and should not be used.
9. What is the typical orientation limitation for adhesive anchor
installation?
A. Horizontal only
B. Vertical only
C. Limited by adhesive type and approval
D. Cannot be overhead
