对于水泥料的绿色材料:评估替代原材料的潜在潜力
Anja Terzić1, Jovica Stojanović2, Marija Marković2
1Institute for Testing of Materials, Bulevar Vojvode Mišića 43, 11000 Belgrade, Serbia.
Materials (Basel, Switzerland)
|February 27, 2026
概括
这项研究探讨了利用回收混凝土和替代粘土,如本托尼特和热,以在较低的温度下生产水泥. 短时间的机械预处理提高了水泥的性能,为传统水泥生产提供了一个可持续的替代方案.
科学领域:
- 材料科学 材料科学 材料科学
- 化学工程是化学工程的重要组成部分.
- 可持续建筑 可持续建筑
背景情况:
- 减少用于生产水泥的自然资源,需要探索替代原材料.
- 快速的城市化和对建筑材料的需求增加加剧了资源枯竭.
- 回收混凝土和非传统的粘土为水泥制造提供了潜在的可持续解决方案.
研究的目的:
- 评估将回收混凝土 (C&DW) 和非传统的粘土 (本托尼特,岩) 纳入合剂合成的可行性.
- 研究降低化温度 (1300°C) 和机械预处理对水泥性能的影响.
- 评估这些替代材料在水泥生产中替代传统原材料的潜力.
主要方法:
- 混合设计的系统测试,结合传统和替代原材料 (回收混凝土,土石,焦岩石).
- 研究机械预处理时间 (10-30分钟) 对粉原料粉的影响.
- 使用XRD,FTIR和SEM/EDS分析对基相组合的表征.
- 评估由此产生的水泥的机械性能.
主要成果:
- 不管原材料的变化,料始终表现出重要的水泥相 (C3S,C2S,C3A,C4AF).
- 岩石和岩石有效地取代了标准的粘土,粘土成分主导了矿物质的形成.
- 回收混凝土充当了二氧化的来源,取代了石英砂,但没有阻碍化.
- 短暂的机械预处理 (10分钟) 增加了水泥矿物质含量;更长的时间有不良影响.
- 降低的化温度 (~1300°C) 产生了与普通波特兰水泥 (OPC) 相比的机械性能水泥.
结论:
- 水泥可以在降低的温度下 (~100°C以下) 使用回收混凝土和非传统的粘土生产.
- 短时间的机械预处理有利于增强水泥矿物质的形成和性能.
- 这些替代水泥显示了结构混凝土应用的潜力,提供了可持续的建筑材料.
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