Hej! Do ready made concrete elements that are delivered on site count as assembly while in concrete that is cast on site the concrete and steel are two materials? Thanks!

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LEEDuser Expert

472 thumbs up

Thu, 08/15/2013 - 22:32

Juliane - IMO: Assembly location in the precast plant - not the project site. You need to dig into the concrete mix design to break down Portland cement, supplementary cementitious materials (SCMs), aggregate, etc. to get to the raw materials and any recycled content. See the LEED Reference Guide for special calculations for SCMs.

Lise Dannesboe

Sustainability Manager

COWI

LEEDuser Premium Member

54 thumbs up

Fri, 08/16/2013 - 06:37

Hej Michelle, many thanks- I am aware, that I can calculate the SCM recycled content in that way- question is more if I am allowed to calculate the steel in the ready-made-concrete-element in a similar way or if this has to be by weight on the whole element. My question is if i can calculate concrete separate from the steel.

LEEDuser Expert

472 thumbs up

Fri, 08/16/2013 - 14:15

Juliane - Thanks for clarifying your question. Typically I would utilize the information in the Reference Guide for calculating assemblies. Though on this LEED-NC v2.2 job for precast concrete, the advice for steel might be what you are looking for: http://www.leeduser.com/credit/NC-v2.2/MRc4?all-comments=true#comment-14196.

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