L bolt failure video

[BubbaJ]

I am trying to locate a video that I saw that shows a tensioned "L" bolt, embeded in concrete, failing by straightening and pulling out without concrete failure.

Has anyone else seen this video? I cannot recall at which conference/seminar I saw it.

I would like to show it to a few G.C.'s in the area who are resisting using type "A" bolts in lieu of the type "B" in pre-engineered metal building applications.

Thanks.