Table 3 Application of emerging technologies in Xinyang CAZ Double Innovation Industrial Park Project.
From: Carbon reduction potential and selection strategies of emerging construction-phase technologies
No | Category | Item | Application | Reduction capacity | Reduction (kg CO2) | Project reduction capacity (kg CO2 / 100 m2) |
|---|---|---|---|---|---|---|
1 | High strength & High performance material technologies | HS-HPC technology | C60 HS-HPC is used in the project, applied in the core tube shear wall and the basement steel concrete frame column, with a total amount of about 3,270 m3 | 0.59 kg CO2 / m3 | 1929.3 | 0.89 |
2 | Application technology of high strength bar | Common hot-rolled ribbed steel bars (HRB) with yield strength of HRB400E and HRB500E are used in the project, mainly in the foundation and main structure, totaling 12,120 t | 6.71 kg CO2 / t | 81,326.0 | 37.39 | |
3 | Simplified construction processes technologies | High-strength bar straight thread connection technology | High-strength bars in the project are connected by straight thread connection technology, used in bars with diameters > 20 mm in the foundation and main structure, with 50,899 joints | 0.32 kg CO2 / piece | 16,287.7 | 7.49 |
4 | Mechanical anchorage technology of bar | Mechanical anchoring technology of steel reinforcement is used, applying to the joint of steel-reinforced concrete columns and beams, with 552 anchoring plates used | 2.19 kg CO2 / piece | 1208.9 | 0.56 | |
5 | Combined aluminum alloy formwork technology | Aluminum alloy formwork is mainly used in the construction of the reinforced concrete core tube, with an application area of about 2,800 m2 | 0.33 kg CO2 / m2 | 914.8 | 0.42 | |
6 | Technology of no plastering on building walls | No plastering technology is applied on building walls, mainly in corridors and office partitions, reducing the plastering area by about 132,700 m2 | 0.06 kg CO 2/ m2 | 7431.2 | 3.42 | |
7 | Renewable resources & waste reduction technologies | Construction waste reduction & resource utilization technology | New green construction technology, fine construction, and standardized construction measures are adopted to improve the reuse rate of wood formwork, reducing waste by1,954 m3 | 20.38 kg CO2 / m3 | 39,831.7 | 18.31 |
8 | Solar energy & Air energy utilization Technology | Solar streetlights are used to illuminate the construction site, with 13 units installed, saving 2.08 kW·h/day of electricity | 0.785 kg CO2 / kW·h | 898.0 | 0.41 | |
Total | 149,827.6 | 68.89 | ||||
