经MICP处理的珊瑚聚合物及其在海洋混凝土中的应用
Rui Xu1,2, Baiyu Li1, Xiaokang Liu1
1School of Materials Science and Engineering, Tianjin Chengjian University, Tianjin 300384, China.
Materials (Basel, Switzerland)
|August 14, 2025
概括
微生物诱导的碳酸盐沉 (MICP) 增强了海洋混凝土的珊瑚聚合物. 这种方法提高了聚合物的性能,提高了混凝土的可加工性和压力强度,为传统材料提供了可持续的替代品.
科学领域:
- 海洋工程 海洋工程
- 材料科学 材料科学 材料科学
- 地质技术工程 地质技术工程
背景情况:
- 珊瑚聚合物在海洋建筑中为陆地聚合物提供了可持续的替代品,降低了采石和运输成本.
- 然而,珊瑚聚合物的低密度和高孔隙性会对混凝土性能产生负面影响.
- 微生物诱导的碳酸盐沉 (MICP) 被探索为一种改善珊瑚聚合物的特性的方法.
研究的目的:
- 调查MICP在修改海洋混凝土应用中的珊瑚聚合物的有效性.
- 评估MICP处理参数 (基质度,矿化期) 对聚合物的性能的影响.
- 在混凝土混合物中评估MICP处理的珊瑚聚合物的性能.
主要方法:
- 使用MICP处理的珊瑚聚合物具有不同的基质度和矿化周期.
- 测量了包括质量增加,水吸收和表面密度在内的关键聚合物特性.
- 用MICP处理的聚合物被纳入了海洋混凝土,并评估了可加工性和压力强度.
主要成果:
- 最佳的MICP处理 (基质1mol/L,14天) 显著改善了聚合物特性,特别是对于轻量化和较小颗粒大小.
- 水的吸收率降低了高达34.75%,表面密度显著增加.
- 使用改性聚合物的混凝土表现出更好的可加工性和压力强度,在28天后增加了14.91%.
结论:
- MICP是一种有效的方法来增强珊瑚聚合物的特性,解决它们在具体应用中的局限性.
- 改性珊瑚聚合物可以提高海洋混凝土的性能,提供可持续和可行的建筑材料.
- 这项研究支持在海洋工程中使用MICP处理的珊瑚聚合物,促进资源效率和减少环境影响.
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