Table 9 Inventory the carbon footprint, latent energy, and unit cost of raw materials.

From: Towards greener construction: a comprehensive evaluation of eco-friendly UHPC reinforced with hybrid fibers

No.

Raw material

Cost ($/kg)

EE (MJ/kg)

E-CO2 (kg/kg)

1

Portland cement

0.11

4.8

0.83

2

Silica fume

0.04

0.100

0.014

3

Metakaolin

0.40

3.5

0.06

4

Quartz powder

0.15

0.14

0.01

5

Sand

0.02

0.022

0.001

6

Superplasticizer

3.20

18.1

0.25

7

Water

0.00

0.01

0.0002

8

Steel fiber

4.8

20.59

5.4

9

Polypropylene

1.25

16.5

6.7