拉塞里特土壤粉作为生产高性能砂生产的水泥材料
Mitiku Damtie Yehualaw1, Hulgize Nibret2, Ephrem Melaku Getachew2,3
1Faculty of Civil and Water Resource Engineering, Bahir Dar Institute of Technology, Bahir Dar University, P.O. Box 79, Bahir Dar, Ethiopia. mitiku.damtie@bdu.edu.et.
Scientific reports
|May 1, 2025
概括
后期土壤粉末 (LSP) 可以在高性能砂 (HPM) 生产中取代水泥. 10%的LSP替代品保持了机械性能和耐久性,为水泥制造提供了一个可持续的替代品.
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.
- 环境科学 环境科学
背景情况:
- 水泥生产是全球二氧化碳排放的主要来源 (4-5%).
- 可持续建筑需要替代原材料和补充水泥材料 (SCM).
- 后期土壤粉 (LSP) 是一种潜在的SCM,可以减少水泥对环境的影响.
研究的目的:
- 评估后石土壤粉 (LSP) 作为高性能砂 (HPM) 中水泥的部分替代品的适用性.
- 研究各种LSP替代水平对HPM新鲜,硬化和微观结构性质的影响.
- 为了确定最佳的LSP替换百分比,以保持砂性能.
主要方法:
- 用不同的LSP含量对HPM特性进行实验评估.
- 测试包括沉流量,压力强度,耐化学物质和吸水能力.
- 使用富里埃变换红外光谱 (FTIR),热重力测量分析 (TGA) 和差异热分析 (DTA) 的微结构分析.
主要成果:
- 增加的LSP含量降低了砂的流动性,尽管超级可塑剂减轻了这种影响.
- 10%的LSP替代品对机械性能或耐久性没有显著的不利影响.
- ANOVA证实对照组和10%的LSP混合物之间的压力强度没有统计学上显著的差异 (p=0.62).
- FTIR分析显示,水化产品的变化很小,增加了10%的LSP.
结论:
- 用拉特里特土壤粉 (LSP) 取代10%的水泥对于高性能砂 (HPM) 是最优的.
- 这种替代水平保持了基本的性能特征,没有显著的负面影响.
- LSP提供了一个可行的,可持续的替代方案,以减少基于水泥的材料的环境足迹.
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