有效地利用珊瑚废物作为内部固化材料,制备环保的海洋地质聚合物混凝土
Zhiyuan Yang1, Zhantang Chen2, Hong Zhu2
1Key Laboratory of Concrete and Prestressed Concrete Structures of the Ministry of Education, Southeast University, Nanjing, 210096, China; Department of Building, School of Design and Environment, National University of Singapore, (S) 117 566, Singapore.
Journal of environmental management
|August 11, 2024
概括
在海洋地聚合物混凝土 (MGC) 中,珊瑚废物作为内部固化材料显著减少了收缩,提高了耐用性. 通过40-50%的珊瑚粗聚合物 (CorA) 替代,可以达到最佳性能.
科学领域:
- 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.
- 可持续建筑 可持续建筑
背景情况:
- 岛屿工程面临着建筑材料短缺和固体废物积累的问题.
- 地质聚合物混凝土经常遭受显著的干燥收缩.
- 珊瑚废物为建筑材料提供了潜在的资源.
研究的目的:
- 调查使用珊瑚废物作为海洋地质聚合物混凝土 (MGC) 的内部固化材料.
- 解决岛屿工程中的建筑材料短缺和固体废物问题.
- 为了减轻地质聚合物混凝土的收缩,使用珊瑚粗聚合物 (CorA).
主要方法:
- 使用海水,海沙,石灰岩聚合物和不同百分比的珊瑚粗聚合物 (CorA) 制备MGC.
- 描述CorA的多孔性和水脱吸性质.
- 评估MGC属性,包括沉,设置时间,自身收缩,干燥收缩和微观结构.
主要成果:
- 珊瑚粗聚合物 (CorA) 由于其多孔性和水溶解特性,显示出有效的内部固化潜力.
- 整合CORA减少了自身和干燥收缩,在40-50%的替代中几乎消除.
- 较高的CORA含量促进了可取的微观结构变化,改善了界面过渡区,并减少了碳化.
结论:
- 珊瑚废物是MGC内部固化的可行材料,为岛屿工程提供了可持续的解决方案.
- 建议在40%至50%之间的最佳CORA含量用于高性能MGC,并最大限度地减少收缩.
- 这种方法有效地利用废物,同时提高混凝土的性能.
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