Can you tell me if I am looking at this correctly if I choose to treat the entire concrete assembly as one entity and do not separate out the SCMs?
I have $647,167.33 in total material cost for the concrete.
19% of this by weight is Fly Ash that has 100% pre-consumer recycled content. Another 9% by weight is Portland cement that has 8.5% pre-consumer recycled content. The rest is made up of components that do not have any recycled content.
To determine the concrete’s pre-consumer recycled content do I add the following numbers:
$122,961.79 (this is 19% of the total concrete material cost, 100% of which is pre-consumer Fly Ash)
$4,950.83 (this is 9% of the total, or $58,245.06 and then 8.5% of that number which is pre-consumer Portland cement)
So the total pre-consumer content value of the concrete assembly is $127,912.62 – right?
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Nadav Malin
CEOBuildingGreen, Inc.
LEEDuser Moderator
844 thumbs up
January 17, 2013 - 3:08 pm
Yes, that looks right. Of course, you then have to divide that final number by 2 to get the contribution of the pre-consumer recycled content to the total recycled content.
Tim Crowley
LEED AP / Founderwww.BCdesignbuild.com
60 thumbs up
January 17, 2013 - 3:25 pm
Nadav - Thanks for the assistance. It is greatly appreciated as always.