Engineering Center

I am currently working on a project involving the repair of a delaminated 12-inch-thick concrete wall. The repair scope includes removing deteriorated concrete to a depth of approximately 3 to 4 inches until the vertical reinforcing steel is exposed, followed by restoration of the affected area with a repair material. As part ...

Question on threaded rod material in ESR-3814. Are HAS-E and HAS-V rods intentionally omitted? What are the implications?

I attended the session. Where can I access the quiz and get the PDH?

We are reviewing a connection of a steel relieving angle support bracket to a fully-grouted CMU wall. The bracket is fastened to the wall with Hilti HAS rods with the Hilti HIT-HY 270 system. Per the Product Technical Guide and ICC-ES ESR-4143, the holes in the bracket should have been 1/16 larger than the rod diameter as i...

Is the length of a KB-TZ2 measured from the bottom of the anchor up to the washer, i.e., exclude the washer and nut? (see snippet)

Hello Hilti Engineering, We are resolving a fit-up and installation tolerance issue with a post-installed Halfen strut (HZA 53/34). We intend to use the 1/2 HIS-RN internally threaded insert to secure the channel to the concrete wall. The issue: The channel throat opening is exactly 0.88 (22.5mm). Standard 1/2 hex bolts and s...

Does Hilti have testing or published values for anchors into Roller Compacted Pavement (RCC) pavement?

We have recently become aware of an issue affecting the installation of pins through the roof deck into open-web steel joist chords. Apparently, some joist manufacturers have changed from hot-rolled steel angles to cold-formed or cold-rolled steel angles. This process strain hardens the steel, and we are seeing significant ins...

Are the mineral wool (Item 3) and Hilti CP 777 speed plugs (Item 4) interchangeable in this system? I interpret Note 3 telling me it is one or the other. Are the speed plugs for if the metal deck is directly resting on the CMU block wall and mineral wool would be if there is a gap between the two? Or is the intention to use b...

Will I receive CEU credit for attending this online session?