ACI Adhesive Anchor Installer case studies
ACI Adhesive Anchor Installer · Put your knowledge to work in context.
The ACI Adhesive Anchor Installer certification is one of the Construction / Specialist Programs offered through the American Concrete Institute's certification network, which the source describes as assessing "the knowledge of concrete construction practices in various specialty applications." It sits in the same program family as the Concrete Flatwork and Tilt-Up credentials, so it is a personnel-qualification credential rather than a design or inspection one. It is intended for the tradespeople who actually place adhesive anchors in hardened concrete - installing the cartridge system, cleaning and preparing the hole, injecting adhesive, and setting the anchor - and for the supervisors who oversee that work. The ACI Adhesive Anchor Installer case studies are 5 cases and about 2,386 words.
1Oversized Hole in a Wet Core-Drilled Pier
You are installing 5/8-inch diameter threaded rods into a new interior pier using a two-part epoxy adhesive. The general contractor core-drilled the holes with a 5/8-inch bit, but the bit wandered; field measurement with a bore gauge shows several holes are 11/16 inch in diameter and roughly 5-1/2 inches deep, against a specified 4-1/2 inch effective embedment.
537 words, about 3 min2Cold Snap During a Roof Parapet Retrofit
You are anchoring stainless steel brackets to the top of a concrete parapet for a fall-protection system. The adhesive is a two-part epoxy with a published base-cure schedule of 45 minutes at 70 degrees F.
522 words, about 3 min3Diamond-Core Bit Leaves Glazed Hole Walls
You are installing 1/2-inch adhesive anchors into an existing 8-inch-thick concrete wall for a new equipment rack. The holes were drilled by a subcontractor using a diamond core bit because the wall contains embedded rebar that a hammer drill kept hitting.
455 words, about 2 min4Anchor Spacing Conflict With Rebar and Edge Distance
You are installing a row of 3/4-inch adhesive anchors to support a new steel beam at the face of a concrete wall. The engineer's layout calls for anchors at 12-inch spacing, 4 inches from the top edge, with a 7-inch effective embedment.
426 words, about 2 min5Hollow Voids Behind a Formed Wall
You are installing 1/2-inch adhesive anchors into a 6-inch-thick concrete wall to mount a guardrail. During drilling, one hole breaks through into a void behind the wall at about 3-1/2 inches depth, and a second hole shows a large void starting at 4 inches.
446 words, about 2 min