Table 1.

Environmental impact of ultra-high performance concrete (UHPC) in comparison to ordinary concrete presented in the form of CO₂ emissions.

Ingredient	CO2 Emissions	UHPC	Ordinary Concrete	CO2 Emissions
				UHPC	Ordinary Concrete
	kg/kg	kg/m3	kg/m3	kg/m3	kg/m3
Cement	0.931 [6]	1000	400	931	372.4
Water	0.000196 [6]	220	160	0.04312	0.03136
Quartz	0.0234 [7]	300	0	7.02	0
Fine aggregate	0.0026 [6]	700	1100	1.82	2.86
Coarse aggregate	0.0075 [6]	0	730	0	5.475
Silica	1.05 [6]	200	0	210	0
Superplasticizer	0.25 [6]	22.5	0	5.625	0
Element thickness reduction [8]				33%	0
Total CO2 emissions (kg/m3)				763	381