Dewatering
Pumping groundwater away from an excavation or structure to keep the working area dry through construction or repair.
On an actual building
Below-grade waterproofing cannot be applied or cured in standing water. Dewatering is a running cost for the whole programme, and switching it off overnight mid-cure floods a partially cured layer.
What we most often have to correct
That it is only needed during application. It must continue through the full cure period.
Terms that come up alongside this one
- Water Table
The level below ground at which the soil is saturated with water.
- Hydrostatic Pressure
The pressure exerted by standing water against a structure, increasing with depth below the water level..
- Curing
Keeping cementitious material adequately moist and at a suitable temperature while it hydrates and develops strength and impermeability..
Dewatering — questions we get asked
What does dewatering mean in waterproofing?
Pumping groundwater away from an excavation or structure to keep the working area dry through construction or repair.
Why does dewatering matter on a real project?
Below-grade waterproofing cannot be applied or cured in standing water. Dewatering is a running cost for the whole programme, and switching it off overnight mid-cure floods a partially cured layer.
What do people commonly get wrong about dewatering?
That it is only needed during application. It must continue through the full cure period.
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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