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废弃复合板粉末对自压缩砂的机械,耐用性和微观结构性能的影响

Yusuf Yıldırım¹, Alirıza İlker Akgönen², Serkan Etli²

¹Andırın Vocational School, Kahramanmaraş Sütçü İmam University, Kahramanmaraş 46410, Türkiye.

Materials (Basel, Switzerland)

|February 27, 2026

概括

基于废弃物的板粉,包括基于石英的板粉 (WQP) 和培养大理石粉 (WMP),可以作为自压砂 (SCM) 的可持续填充剂. 虽然更高的替换水平降低了可加工性和强度,但低水平提供了好处,WQP显示出良好的热稳定性.

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.
可持续的建筑材料可持续的建筑材料

背景情况:

自压砂 (SCM) 是一种具有出色可加工性的高性能混凝土.
在建筑中利用废物材料可以减少对环境的影响,并促进循环经济原则.
对替代水泥填料的替代填料进行研究对于可持续建筑实践至关重要.

研究的目的:

评估废弃板粉 (WQP和WMP) 作为部分水泥替代品在SCM中的影响.
评估对新鲜和硬化的性能的影响,包括可加工性,耐久性,机械强度和微观结构.
为了确定SCM与WQP在高温下的热稳定性和微观结构行为.

主要方法:

地下废石英板粉 (WQP) 和培养大理石粉 (WMP) 用于取代0-25%质量的水泥.
使用迷你斜坡流量测试来评估可行性.
测试的硬化性能包括孔隙性,吸水性,耐磨性,曲强度和压力强度.
在暴露在300°C,600°C和900°C后,通过机械测试和微结构分析 (SEM,XRD) 调查了热稳定性.

主要成果:

增加更换比率通常会降低可加工性,机械强度,多孔性和吸水能力.
较低的替换水平 (高达25%) 显示,由于填充效应,曲强度略有提高.
带有WQP的SCM表现出优越的热稳定性,保持更密集,更连贯和同质的微观结构.
SEM和XRD证实了石英在WQP中的高热稳定性.

结论:

基于废弃物的板粉是自压缩砂的可行可持续填充剂.
WQP表现出良好的性能和热稳定性,使其成为一个有希望的环保替代品.
这项研究支持在混凝土技术中使用回收材料,以获得环境和经济效益.

关键词:

培养大理石是一种文化大理石.耐久性耐久性耐久性基于石英的复合板材板块.自压缩型砂是自压缩型的

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