Table 6.

Life cycle impact category for geopolymer bricks and concrete productions.

Impact category	Geopolymer brick (25 MPa)	Concrete production∗ (25 MPa)	Concrete production∗∗ (25 MPa)
Climate change (kg CO2 eq)	1.41	100	59.6
Ozone depletion (kg CFC-11 eq)	7.00	100	74.7
Terrestrial acidification (kg SO2 eq)	2.87	100	62.8
Human toxicity (kg 1,4-DB eq)	2.96	100	71.3
Terrestrial ecotoxicity (kg 1,4-DB eq)	1.38	100	79.3
Fossil depletion (kg oil eq)	22.7	100	71.5

∗, ∗∗ Database from Eco-Invent on SimaPro.

^∗Concrete, 25MPa (CA-QC) | concrete production 25MPa, RNA only | Alloc Def, U (Quebec) composed of Cement 237 Kg, Water 164 Kg, Gravel 950 Kg, Sand 940 Kg and Fly ash 18 Kg.

^∗∗Concrete, 25MPa (RoW)| concrete production 25MPa, RNA only | Alloc Def, U (North America) composed of Cement 204 Kg, Water 160 Kg, Gravel 1009 Kg, Sand 925 Kg and Fly ash 36 Kg.