Secondary grouting for vertical pumps: the inner formwork cannot be removed; any suggestions are appreciated
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The vertical pump is equipped with a central cylinder; after the initial grouting and installation of the shims, during the secondary grouting process the central cylinder is close to the surrounding foundation, and it is integrated with the pump base. If internal formwork is installed during secondary grouting, it cannot be removed after grouting. Is there a good way to solve this?
I didn’t quite understand it; I’m suggesting some methods for reference only. Could it be considered to use thin iron sheet and foam polystyrene material, and then burn them with an open flame? It would be best to have schematic diagrams, as visual references make things clearer. There are also some internal molds that have to be kept because they cannot be removed.
I see that our workplace is supported by foam boards; they still haven’t been removed even now
It is temporarily recommended to use thin iron sheet. If the vertical pump is equipped with a central cylinder, and ordinary formwork is used, is it permissible not to remove the formwork after grouting is completed? I checked the specifications and found no such requirement; does this mean that it is not allowed to remove the formwork?
The foam board does not need to be removed; it’s just unclear whether leaving ordinary wooden formwork in place violates the regulations.
There are many methods. Call me master, and I’ll give you a clever trick: use clay to make a template, and once the pouring is complete, just wash it away with water. It means the water bill might be a bit higher next month.
As long as it doesn’t involve the body bearing force, any technique will do. Don’t think that the foam board can be left in place without removal; its supporting capacity increases as its area grows, and its impact on the equipment cannot be underestimated.
Those that cannot be removed need not be removed, as it has no impact on the quality of the grouting