Engineering Center

Can I use a 5/8in. HAS-E-55 Anchor with HIT-RE 500 V3 epoxy in 4in. deep concrete wythe of a 4in-3in-4in wall panel. The middle 3in. being insulation? I am looking to use 3.25in. embedment depth, which will leave 0.75in. concrete beyond the embedment depth. Concrete blow-out from behind if not a concern in my case, since th...

hello. i'm an architect working in an existing building with 1 hour floor ratings. many existing penetrations are not properly firestopped (see attached photos). do you have any solutions? the project is located in cambridge, massachusetts. thank you in advance. john price, gastingerwalker& jprice@gastingerwalker.com 816...

I just completed the Trends and Firestopping in Mass Timber Construction (FS103) Webinar but my certificate is not showing up.

Can the nut on a KB TZ2 be removed after torque testing to install a rubber mounted vertical isolater without re-torqueing the anchor, thanks

I am wondering what are the guidelines for using the hilti kwick con II into red brick. Table 4 gives values for tension and compression with a foot note that mortar joints are outside of the scope of the table. There are also notes clarifying that the anchors must have an edge distance of 16 times the diameter or reduced to...

In case of attaching a roof deck to steel joist, mostly the thickness of steel joist top chord is unknown because the joists are designed by the joist manufacturer and angle sizes are unknown. In the past, I have made an assumption on thickness unless is verified in field. What's Hilti's approach on this?

If the roof deck is outside as in over canopy, which fastener would be better in terms of waterproofing? We have mostly specified welds but if Hilti PAF are waterproofed then we can specify that instead.

I am a structural engineer and am looking to see who is my local technical representative for Hilti in St. Louis MO

Hello, I am seeking a firestop system that would work for metallic pipe penetration into an existing CMU wall. It is unknown whether the CMU is UL classified. Please advise if/which firestop can be used.

We are looking for a solution similar to UL SYSTEM NO. C-AJ-2336 (concrete) or UL SYSTEM NO. F-C-2232 (wood) that provides 1 hr rating. Our floor system and structural system is wood and the ceiling gypsum.