We have a situation where we will need to drill through 6" thick metal deck floor slab to install anchor bolt on the flange of the support steel beam. See attached sketch. This is required due to higher load which is preventing to install anchor rod within the concrete slab thickness. Since the bolt will be drilled through the concrete, we are proposing to use Hilti Hit-Re 500 V3 adhesive to fill the gap around the bolt in concrete portion. Do you think this is a feasible option? Do we need to use any mesh type sleeve for this purpose. Please provide best recommended option for this.
Hi Rajesh,
Hilti does not have testing to support adhesive anchors in a through bolting situation. The published values do assume a minimum concrete thickness with sufficient concrete at the back of the hole (or minimum thicknesses based on the concrete over metal-deck data). Through bolting is an application of Hilti adhesive anchors outside of its published testing data that would have to be an engineering judgement approved by the Engineer of Record (EOR) on the project.
For additional questions, please reach out to hnatechnicalservices@hilti.com
Kind regards,
Sinan