Research Article
Evaluation of the Flexural Performance and CO2 Emissions of the Voided Slab
Table 9
The CO2 emissions of specimens (unit: kg-CO2/FU).
| | Ingredients of the voided slab | S1 | S2 | S3 | S4 |
| | Concrete | | | | | | Volume (m3) | 0.21 | 0.17 | 0.16 | 0.17 | | CO2 emissions (kg-CO2) | 69.59 | 57.66 | 53.36 | 55.89 |
| | Rebars | | | | | | D10 | | | | | | Weight (kg) | 8.38 | 6.71 | 8.38 | 8.38 | | CO2 emissions (kg-CO2) | 23.72 | 18.97 | 23.72 | 23.72 | | D13 | | | | | | Weight (kg) | 4.97 | 3.97 | 4.97 | 4.97 | | CO2 emissions (kg-CO2) | 13.85 | 11.08 | 13.85 | 13.85 |
| | Wires | | | | | | Weight (kg) | — | 19.86 | 7.76 | — | | CO2 emissions (kg-CO2) | — | 34.42 | 13.44 | — | | HDPE | | | | | | Weight (kg) | — | 3.90 | 3.98 | — | | CO2 emissions (kg-CO2) | — | 7.31 | 7.45 | — |
| | Total emissions (kg-CO2/FU) | 107.15 | 129.44 | 111.82 | 93.45 |
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