优化三元OPC砂,结合虫山土和热活性再生混凝土水泥的优化
Mitiku Damtie Yehualaw1, Melkie Gedamu Tebabal2, Ephrem Melaku Getachew2,3
1Faculty of Civil and Water Resource Engineering, Bahir Dar Institute of Technology, Bahir Dar University, P.O. Box 26, Bahir Dar, Ethiopia. mitiku.damtie@bdu.edu.et.
Scientific reports
|November 21, 2025
概括
这项研究探讨了在混凝土混合物中使用热激活回收混凝土水泥 (TARC) 和山地土壤 (THS). 这种组合显著提高了砂的强度和耐用性,为传统水泥提供了可持续的替代品.
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:
- 建筑行业面临着水泥生产和建筑垃圾 (CDW) 的环境压力.
- 回收混凝土 (TARC) 和山地土壤 (THS) 显示出作为可持续建筑材料的潜力.
- 优化普通波特兰水泥 (OPC) 与TARC和THS的混合物对于减少环境影响至关重要.
研究的目的:
- 评估TARC和THS在OPC三元混合物中的协同效应.
- 优化TARC-OPC混合物以提高机械性能和耐用性.
- 通过减少水泥排放来促进可持续建筑实践.
主要方法:
- TARC和THS的物质特征.
- 三元OPC混合物的性能评估 (TATH).
- 砂样本的微观结构分析.
主要成果:
- 三元混合物TATH10 (10% THS + 20% TARC) 与二元混合物TATH0 (30% TARC) 相比,具有更高的压力强度 (28天后31.50 MPa,56天后38.50 MPa).
- 在三元混合物中观察到增强的耐用性和精细的微观结构.
- 证实了TARC和THS之间明显的协同效应.
结论:
- 在OPC混合物中将TARC和THS结合起来,为建筑提供了一种新且可持续的方法.
- 这一策略有效地减少了水泥排放,同时提高了砂的性能.
- 这些发现通过促进环保建筑材料来支持全球可持续性目标.
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