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CS-2009 MRc4:Recycled Content

Recycled Water in Concrete and SCMs

Profile picture for user wardmiller
Ward Miller
Chief Environmental Officer
Alpenglow Advisory
LEEDuser Basic Member
44 thumbs up

The Reference Guide language related to SCMs in concrete gives project teams the choice whether to include SCMs as a percentage of the entire concrete or separate them out (pg. 373); however, it does not mention, nor do any LEED Interpretations anything related to using recycled water as a part of the concrete mix. We have a supplier that uses a high percentage of recycled water in their concrete mix. As water is not SCM, we assume the water must be included in the overall mix rather than separated out like SCMs, but has anyone successfully had recycled water in concrete contribute to earning MRc5?

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Profile picture for user tristanroberts
Tristan Roberts
Representative
Vermont House of Representatives
LEEDuser Expert
7780 thumbs up

Sat, 08/26/2017 - 23:03

Ward, I haven't heard of this being done successfully, though I've heard people scheme about it. It seems like a stretch because many plants use nonpotable water and filter it, etc. Is it really not business as usual?Not to say it's off the table, but I haven't heard of it being done successfully.What's next, counting the air entrained? ;)

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