用各种生物炭作为补充的固材料的可行性
Seung-Beom Kang1, Hyun-Do Yun2, Wonchang Choi3
1Department of Architectural Engineering, Gachon University, Seongnam-si, 13120, Republic of Korea.
Scientific reports
|November 19, 2025
概括
来自木材和大米的韩国生物炭可以增强砂的强度,作为补充的水泥材料. 然而,家禽便生物炭降低了强度,这突显了建筑应用中原料选择的重要性.
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:
- 生物质热解的副产品生物炭被探索为建筑材料的可持续替代品.
- 研究生物炭作为砂中部分水泥替代品的潜力,对于减少混凝土生产对环境的影响至关重要.
研究的目的:
- 评估使用韩国生产的来自木材 (WB),米 (HB) 和家禽 (MB) 的生物炭作为砂中的水泥替代品的可行性.
- 分析不同生物炭原料对砂物理化学性质和微观结构特性的影响.
主要方法:
- 对WB,HB和MB进行物理化学和微结构分析.
- 用5%的生物炭替代28天的流量和压力强度准备和测试砂样本.
主要成果:
- 由于有利的颗粒大小和高表面积,木材生物炭 (WB) 和大米生物炭 (HB) 可提高砂的压力强度高达29%,改善内部固化和填充效果.
- 禽生物炭 (MB) 提高了砂的流动性,但由于粗颗粒和较小的表面积,压力强度降低了约44%.
- 与MB相比,WB和HB的碳含量和化学稳定性更高,与砂性能改善相关.
结论:
- 作为水泥替代品使用时,原料类型和生物炭特性显著影响砂性能.
- 树木生物炭 (WB) 和大米生物炭 (HB) 显示出作为补充性水泥材料的前景,增强强度和可加工性.
- 禽生物炭 (MB) 不适合用作混凝土中的水泥替代品,因为它对机械性能有不利影响.
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