ponding


ponding

[′pänd·iŋ] (building construction) An accumulation of water on a flat roof because of clogged or inadequate drains. (civil engineering) The impoundment of stream water to form a pond. Covering the surface of newly poured concrete with a thin layer of water to promote curing. (hydrology) The natural formation of a pond in a stream by an interruption of the normal streamflow.

ponding

1. The accumulation of water in a depression on an otherwise level surface. 2. The process of flooding the surface of a newly placed concrete slab with a thin layer of water to ensure continued hydration; usually requires the use of temporary dams of earth or other material around the perimeter.