ACI Adhesive Anchor Installer Certification Practice Exam

What is described as a post-installed anchor?

1. An anchor fixed in soil

2. An anchor installed in an existing concrete member

3. An anchor embedded in a wall

4. An anchor that is removable

The correct answer is: An anchor installed in an existing concrete member

A post-installed anchor is defined as an anchor that is installed into an existing concrete member. This type of anchor is typically used in construction and renovation projects where new anchorage points are needed without the opportunity to embed the anchor within fresh concrete during the initial pouring process. Post-installed anchors are essential for applications such as adding new equipment to existing structures or enhancing the load-bearing capacity of a concrete element. This method allows for efficient use of existing structures and provides flexibility in design and installation. The other choices refer to different scenarios of anchors that do not align with the definition of post-installed anchors. For example, an anchor fixed in soil relates more to ground anchoring practices, and an anchor embedded in a wall implies it has been included in the structural element during construction. An anchor that is removable pertains more to the ability to detach and reinstall rather than the context of its installation in relation to an existing substrate.