通过机械,耐久性和微观结构测试,优化混凝土混合物上的水泥和细电弧渣
Kavita Rani1, Kasilingam Senthil2, Amardeep Boora3
1Research Scholar, Department of Civil Engineering, Dr B R Ambedkar National Institute of Technology, Jalandhar, 144008, Punjab, India.
Scientific reports
|November 29, 2025
概括
本研究探讨使用电弧炉渣来替代混凝土中的水泥和聚合物,寻找最佳的混合物来增强曲强度,但需要进一步研究以改善耐久性.
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:
- 人们越来越担心自然资源的枯竭,因此需要在建筑领域找到可持续的替代方案.
- 电弧炉 (EAF) 渣为混凝土应用提供了潜在的波佐兰材料.
研究的目的:
- 调查用混凝土中的EAF渣渣取代水泥和细砂堆的可行性.
- 确定混凝土混合物中混凝土渣 (SC) 和细聚合物渣 (SF) 的最佳百分比.
- 评估混凝土的机械性能和耐用性,其中包括EAF渣.
主要方法:
- 对混凝土混合物进行实验分析,其中SC和SF的百分比不同.
- 与普通混凝土 (NC) 相比,优化渣混凝土 (SCF3050) 的机械测试 (压力和屈曲强度).
- 耐久性评估包括水的透性,硫酸盐和的攻击,性和碳化试验.
- 微观结构性调查使用技术来确认CSH,埃特灵石和波特兰石的存在.
主要成果:
- 确定最佳的替代水平为30%的SC和50%的SF.
- 与NC相比,SCF3050混合物显示压力强度下降12.5%,但屈曲强度显著增加.
- 与NC相比,SC的水透率增加了高达275%,SF的水透率增加了108%.
- 微结构分析证实了影响混凝土性能的关键水化产品的存在.
结论:
- 可以有效地使用EAF渣作为混凝土中的水泥和细砂堆的部分替代品.
- 虽然废渣的结合增强了屈曲强度,但需要提高耐用性,特别是水透性.
- 建议进行进一步的研究和回归分析,以优化基于渣的混凝土配方,以提高性能和可持续性.
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