ACI Adhesive Anchor Installer Certification Practice Exam

In the process of hole cleaning for some capsule adhesive systems, what step may not be necessary?

1. Blowing out dust

2. Brushing

3. Washing with water

4. Drying with an air compressor

The correct answer is: Brushing

Brushing may not be necessary in the process of hole cleaning for some capsule adhesive systems. This is often due to the adhesive's inherent design or formulation, which can be effective at adhering to surfaces without needing to manually scrub the hole with a brush. Many capsule adhesive systems are crafted to work well under various conditions, including slightly contaminated or dusty surfaces. When these systems are used, especially in environments where time and efficiency are key, operators might rely on other cleaning methods like blowing out dust or using water for cleaning to ensure that the hole is sufficiently prepared for the adhesive to bond properly. While blowing out dust, washing with water, and drying with an air compressor all play important roles in ensuring a clean and optimal surface for adhesive application, the necessity of brushing might be diminished, making it a step that can potentially be skipped in certain scenarios. This approach can streamline the installation process without compromising the effectiveness of the adhesive bonding.