Propping
Temporary support installed to carry loads while concrete is removed from a structural member during repair.
On an actual building
Removing concrete from a loaded column or beam reduces its capacity while the work proceeds. Propping design is an engineering decision, not a site convenience.
What we most often have to correct
That it can be judged on site. Propping to an engineer's requirement is a safety matter, and its omission has caused collapses.
Where this comes up in our work
Terms that come up alongside this one
- CFRP (Carbon Fibre Reinforced Polymer)
Carbon fibre fabric bonded to a structural member with epoxy resin, adding tensile and confinement capacity with almost no added weight or section..
- Section Enlargement
Increasing the size of a structural member by adding reinforcement and concrete around the existing section..
- Micro-Concrete
A flowable, shrinkage-compensated cementitious repair material with fine aggregate, poured into formwork to reinstate a concrete section..
More repair terms
Propping — questions we get asked
What does propping mean in waterproofing?
Temporary support installed to carry loads while concrete is removed from a structural member during repair.
Why does propping matter on a real project?
Removing concrete from a loaded column or beam reduces its capacity while the work proceeds. Propping design is an engineering decision, not a site convenience.
What do people commonly get wrong about propping?
That it can be judged on site. Propping to an engineer's requirement is a safety matter, and its omission has caused collapses.
Have a building showing this?
If a term on this page describes something you are looking at, a site inspection will tell you how far it has gone and what it needs. It costs nothing.
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