>The 2019 case study concluded that the use of recycled concrete only
makes sense from an energy perspective when it’s available from within a
25 kilometer (15 mile) radius of the construction site.
Considering that concrete uses quite a bit of sand, and so far only watershaped sand can be used, is that evne accounted for or does the process use that much energy?
Plus:
>In Switzerland, the use of burnt oil shale as a substitute in cement has been more prevalent.
Uhm, what? Burnt oil shale? That’s not very local either?
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New perspective on Kunsthaus!!!
>The 2019 case study concluded that the use of recycled concrete only
makes sense from an energy perspective when it’s available from within a
25 kilometer (15 mile) radius of the construction site.
Considering that concrete uses quite a bit of sand, and so far only watershaped sand can be used, is that evne accounted for or does the process use that much energy?
Plus:
>In Switzerland, the use of burnt oil shale as a substitute in cement has been more prevalent.
Uhm, what? Burnt oil shale? That’s not very local either?