I’m for sure out of my element on this and I honestly don’t know if this is the right spot to post this question, but here it goes:
We need to replace a block wall about 3 feet in height meant to act as tertiary containment for various storage and process tanks each with their own secondary containment areas. There was recently some damage done to the existing wall, but it is still standing, just not quite as it should be (some block layers shifted and leakage through the seams). The mason we regularly use gave us a few options including trying to repair the existing wall or a couple options for new walls with the option to either remove or leave the existing wall in place.
My immediate thought was:
If the existing wall is damaged, rather than lend some additional support to a new wall, in case of an event where the wall is needed to contain a spill, the older, compromised wall would only collapse that much easier and add to the load applied to the new wall
Am I correct in thinking that and the best option would be to construct a new, reinforced wall and remove the old wall, or would leaving the old wall to act as a “first barrier” actually help lessen the load on the new wall in the case of a spill event?
I’m definitely bit out of my area on this, so if the info I provided is too sparse to comment or if I’m not making any sense, I’d appreciate any feedback.