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I'm doing research on comparing environmental impact of different design of pavements. When I use the eio-lca model, I choose the same sector as construction\nonresidencial maintainance and repair, and put the same amount of economic activity for this sector. Then the output will be the same. How can I compare two designs with different quantity materials under one sector? Should a custom\Hybrid Product model be created? If so, which number will be changed? For example, I have different quantity of cement of different design, which sector number should be change? How can I change them?
I appreciate your help!
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