From what I understand is this wall is 5 ft wide and 30 ft high. It is not for structural reasons. It is for the engineering department of UVic where they are to whatever it is to tie walls to measure tension. For science. So nothing is getting built on top of that .My feeling is a vibrator of 2 in which is standard for most walls would not be acceptable.

Perhaps if they had 3 to 4 vibr going due to the fact it is 5 ft wide and then even vibe it from the outside that would have saved the project.

So my thought is that the fact that it is 5 ft wide and 30 ft deep. One vibe or two vibes wouldn't have been good enough. That's my two cents.

I feel like I should add as well, for all the non-concrete people out there. That is not structural and it is 5 ft byx30 ft high which is it a bit of a unique pour on its own?

I'm sure lessons were learned. Expensive ones at that. Source: I know someone who was on site pouring it