ACI Adhesive Anchor Installer Certification Practice Exam

What should be done if the brush used for cleaning is too worn?

1. Continue using it

2. Replace it

3. Clean it with water

4. Check with a supervisor

The correct answer is: Replace it

Replacing a worn brush is essential because a clean and effective brush ensures that the surface is adequately prepared for adhesive bonding. Worn brushes may not reach all the necessary areas effectively, leading to improper cleaning. This can result in contaminants remaining on the substrate, potentially reducing the bond strength of the adhesive anchor. Using a worn brush could compromise the integrity of the installation process, as it may not effectively remove debris, dust, or other contaminants that could interfere with the anchoring system. Proper maintenance and replacement of tools are critical to ensuring safety and structural integrity when installing adhesive anchors. The other options highlight less appropriate actions: continuing to use a worn tool jeopardizes quality, cleaning it with water might not restore its effectiveness, and merely checking with a supervisor may delay necessary action rather than ensuring that a new, effective tool is used.