Table 9.
Calculation of carbon emissions for one cubic meter of concrete.
| Raw materials | Carbon emission factor (kg CO2 eq/ kg) | Carbon emission (kg CO2 eq/m3) | |||
|---|---|---|---|---|---|
| HSGPC | OPCC | UHPC | RPC | ||
| Cement | 0.735 (GB/T 51336-2019) | 0 | 323.4 | 594.62 | 735 |
| FA | 0.02651 | 3.7 | 0 | 0 | 0 |
| GGBFS | 0.090151 | 63.34 | 0 | 0 | 0 |
| SF | 0.01452 | 1.46 | 0 | 3.78 | 3.5 |
| Quartz sand | 0.002452 | 0 | 0 | 0 | 24 |
| River sand | 0.006653 | 0 | 4.29 | 7.12 | 0 |
| Manufactured sand | 0.00765153 | 8.48 | 0 | 0 | 0 |
| Coarse aggregate | 0.003951 | 0 | 4.59 | 0 | 0 |
| Na2SiO3 | 0.67154 | 133.86 | 0 | 0 | 0 |
| NaOH | 0.7554 | 31.32 | 0 | 0 | 0 |
| Chemical Admixtures | 0.944 55 | 8.97 | 2.49 | 20.39 | 28.32 |
| Water | 0.0002 51 | 0.03 | 0.03 | 0.04 | 0.04 |
| Total | N/A | 251.16 | 334.8 | 625.94 | 790.86 |