AAI AAI Substrate Preparation & Surface Conditions

Question 1

What is the primary reason hole cleaning is critical before installing adhesive anchors?

Accepted Answer

To remove dust and debris that would prevent proper adhesive bond

Answer

To make the hole larger for easier insertion

Answer

To check the depth of the hole

Answer

To cool the drill bit

Question 2

According to ACI standards, how many times must a drilled hole be blown out with compressed air during the cleaning cycle?

Accepted Answer

At least 3 times

Answer

At least 2 times

Answer

At least 4 times

Answer

At least 1 time

Question 3

Which substrate condition is generally NOT acceptable for adhesive anchor installation without special provisions?

Accepted Answer

Saturated wet concrete

Answer

Dry concrete

Answer

Slightly damp concrete

Answer

Oven-dry concrete

Question 4

What tool is used to brush the inside of a drilled hole during the cleaning process?

Accepted Answer

A wire brush sized to the hole diameter

Answer

A soft-bristle paintbrush

Answer

A cotton swab

Answer

A wire gauge probe

Question 5

How does concrete temperature at the time of installation affect adhesive anchor performance?

Accepted Answer

Low temperatures slow cure time and may reduce ultimate strength

Answer

High temperatures speed cure and always improve strength

Answer

Temperature has no effect on adhesive cure

Answer

Only ambient air temperature matters, not the concrete temperature

Question 6

What is the purpose of verifying the minimum edge distance before drilling for adhesive anchors?

Accepted Answer

To prevent concrete splitting and ensure full load transfer

Answer

To choose the correct drill bit size

Answer

To determine the adhesive volume needed

Answer

To confirm electrical conduit clearance