Post-Installed Fasteners

Typically, these are installed in a hole drilled into the cured concrete and are either bonded (grouted or chemical) or expansion type fasteners.

A third category of post-installed fasteners is the adhesive fastener, which is usually used to attach lightweight objects to a concrete/brick/or block surface.

In the first two cases, a hole is drilled into the concrete to the desired depth and sufficiently wide enough to accept the selected fastener.

The fastener is set into the hole and the hole is filled with either a cementitious material (like a Portland cement and sand grout or premixed grout) or an epoxy.

Care must be taken to ensure the fastener is in the correct position (both depth wise and at the desired angle) or attaching the desired fixture may be difficult. Hint: For bonded fasteners in particular, remember to blow out the dust before proceeding.

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