Modeling the substitution of natural materials with industrial byproducts in green roofs using life cycle assessments

פרסום מחקרי: פרסום בכתב עתמאמרביקורת עמיתים

40 ציטוטים ‏(Scopus)

תקציר

This study conducted life cycle assessments (LCAs)on four types of extensive green roofs and involved replacing natural perlite with the byproducts coal bottom ash (CBA)and fly ash-based aggregates (FAAs)in both the substrate and drainage layers of green roofs. The following combinations were investigated: perlite in both the substrate and drainage layers (PerliteSUB-PerliteDRIN), perlite in the substrate layer and FAAs in the drainage layer (PerliteSUB-FAADRIN), CBA in the substrate layer and perlite in the drainage layer (CBASUB-PerliteDRIN), and CBA in the substrate layer and FAAs in the drainage layer (CBASUB-FAADRIN). Two types of allocation approaches including mass allocation and system expansion were applied to the byproducts. The LCAs encompassed the production stage and the end-of-life stage. A two-stage analysis of variance (ANOVA)was used to analyze the ReCiPe results and the following was confirmed: (i)the analysis identified the best environmentally friendly roof alternative, (ii)it was observed that the results from the simplification of the LCA for the roof (omitting the end-of-life stage)depended on the type of evaluation approach used in the LCA, and (iii)the more comprehensive performance of the LCAs of green roofs was associated with a combination of the ReCiPe and ANOVA methodologies.

שפה מקוריתאנגלית
עמודים (מ-עד)652-661
מספר עמודים10
כתב עתJournal of Cleaner Production
כרך227
מזהי עצם דיגיטלי (DOIs)
סטטוס פרסוםפורסם - 1 אוג׳ 2019

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