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July 25, 2005
Crushed concrete for stormwater storage
I recently heard of a clever way to combine demolition waste reuse with stormwater management: use crushed concrete to create subsurface storage for stormwater.
Modern stormwater management practices, particularly retention of runoff from small storms, often entails subsurface storage beds. These beds are often built on drainable soils, to allow retained rainfall to infiltrate rather than to run off the site. Standard practices are to use gravel, perforated pipe, or formed plastic storage units.
Crushed concrete could also be used, allowing you to deal with a waste product and to save the cost of gravel (or at least the cost difference between gravel and the cost of crushing the concrete) I expect you could also realize somewhat higher void space in a bed of crushed concrete, compared to gravel. Higher void space would decrease the storage volume required to hold a particular amount of rainfall.
Does anyone out there have experience with this approach?
Posted by aquacura.com at July 25, 2005 08:40 PM