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ponding

   Also found in: Dictionary/thesaurus, Legal, Idioms, Wikipedia 0.01 sec.
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.


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A soil is rated as "severe" in the soil classification handbook for six reasons: a) excessive wetness (categorized as "wet"); b) slow permeability ("slow"); c) shallow bedrock ("shallow"); d) inappropriate slope; e) susceptibility to flooding; and f) susceptibility to ponding.
Every roof system can tolerate an optimum level of ponding water, after that it causes cracks on the roof surface.
In to Win i s on a recovery po s ition in the three and a quarter m ile Open Maiden Race, after a di sm al effort when s ent off favourite in the corre s ponding conte s t at the recent Hoyden m eeting.
 
 
 
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