全球脱碳是通过生物矿物化的新战略实现的,以防止混凝土腐蚀
Xiaohao Sun1, Yong Wang1, Jiadong Ren1
1Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong SAR, China.
Environmental science & technology
|August 14, 2025
概括
生物矿化用于混凝土腐蚀抑制 (BCCI) 通过保护海洋混凝土结构,显著减少温室气体 (GHG) 排放. 这一可持续战略为全球脱碳努力提供了可观的温室气体减排潜力.
科学领域:
- 环境科学 环境科学
- 材料科学 材料科学 材料科学
- 土木工程 土木工程是指土木工程.
背景情况:
- 城市沿海人口正在增长,增加了对脱碳混凝土基础设施的需求.
- 延长混凝土的寿命对于到2050年实现净零温室气体 (GHG) 排放至关重要.
- 生物矿物化用于混凝土腐蚀抑制 (BCCI) 显示出保护海洋混凝土和帮助脱碳的希望.
研究的目的:
- 评估BCCI对温室气体排放的影响,以获得全球脱碳洞察力.
- 评估BCCI在野外腐蚀实验中的有效性,作为温室气体计算输入.
- 分析BCCI对生物膜社区,混凝土微观结构和宏观性质的影响.
主要方法:
- 在混凝土结构上进行了野外腐蚀实验.
- 进行了生物膜社区分析.
- 进行了对混凝土的微观结构和宏观测量.
- 温室气体排放量被计算和分析.
主要成果:
- BCCI减少了腐蚀性细菌,抑制了硫酸盐和化物扩散,并增强了碳功能.
- BCCI显著减少了温室气体排放,特别是在20MPa的混凝土中.
- BCCI显示,潜水混凝土生产的全球温室气体排放可能减少37-65%.
结论:
- BCCI是减少沿海混凝土基础设施温室气体排放的可行策略.
- 这种方法有助于实现全球脱碳和可持续发展目标.
- BCCI为具体部门和沿海环境提供长期的可持续发展利益.
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