Engineering Center

Please are there any bottom of slab fire stopping application EJs for a 2-1/2" minimum concrete slab with a 3" (min) insulated copper pipe penetration? Please help.

What connector product can i use to connect an exterior stud wall to concrete slab on every floor? My lateral loads are 40 psf wind and I am spanning between concrete floors 11 ft apart, 2500 psi 4" concrete slab. How can i design the connector?

Is there a UL tested assembly for a 1-hr fire resistant rating for the underside of a metal roof deck assembly utilizing an intumescent coating or some other coating or product? I know spray-applied fire proofing is very available and the norm, but was wondering if there was another avenue. Is this something Hilti could provid...

Does Hilti have a solution for attaching a deck ledger to hollow cinderblock foundation?

We are looking at methods to fasten Stay in place form decking (metal deck) to new grade 50 beams with a 3/8" grade 50 flange. Would this method be feasible or would it cause too much deformation in the flange?

What are the guidelines for oversized holes for adhesive anchors

One of our client in the oil and gas industry wants to seal voids within GI conduits to prevent vapor travel from hazaordous areas ( oil storage tank rooms) to non hazordous areas. The competitor product they currently using is https://www.eaton.com/us/en-us/catalog/fittings/chico-a-and-chico-x-sealing-compounds-and-fiber.htm...

When calculating steel failure for standoff anchors with grout, one of the variables is rotational restraint alpha,m = 1 or 2 depending on conditions of the plate to bolt connection. I thought that a base plate would be free to rotate about a anchor if there was no nut on the underside of the plate. What conditions are necessa...

is there an epoxy volume calculator for the computer

We have a situation wherein the wall was short and the post installed anchor was exposed. We are thinking of adding another row of CMU, with holes cut to allow the anchors to fit inside the CMU and then grout it full. Kindly confirm if the strength of the post installed anchor (HILTI KWIK HUS EZ) which will be cast in place is...