废粉生物作为提高RPC柔性强度的一个因素
Stefania Grzeszczyk1, Tomasz Rajczyk2, Aneta Matuszek-Chmurowska1
1Faculty of Civil Engineering and Architecture, Opole University of Technology, Katowicka Street 48, 45-061 Opole, Poland.
Materials (Basel, Switzerland)
|January 28, 2026
概括
使用废弃的米格玛-安菲博利特粉末的反应性粉末混凝土 (RPC) 由于含有生物的成分,增强了曲强度. 然而,用废砂取代石英砂会降低压力强度. 这项研究探讨了可持续的混凝土材料替代品.
科学领域:
- 土木工程 土木工程是指土木工程.
- 材料科学 材料科学 材料科学
- 可持续建筑 可持续建筑
背景情况:
- 反应型粉末混凝土 (RPC) 的进步包括通过替代水泥和聚合物来修改常规成分.
- 在RPC中研究传统材料的可持续替代品对于环保建筑至关重要.
- 来自聚合物加工的废物具有作为补充性水泥材料或聚合物的潜力.
研究的目的:
- 为了分析使用米格玛-安菲波利特聚合物加工的废砂和粉末制造的RPC的特性.
- 评估用废物代替石英粉和沙子对RPC机械性能的影响.
- 了解这些废物材料的RPC强度变化背后的微结构机制.
主要方法:
- 设计的RPC混合物中含有不同比例的废物米格马提特-安菲波利特粉末和砂.
- 对开发的RPC混合物进行了机械性能测试,包括压力和屈曲强度.
- 使用显微镜进行矿物成分和微观结构分析,以了解水化产品的形成和材料相互作用.
主要成果:
- 将石英粉替换成废粉增加了23%的屈曲强度,但压力强度降低了7%.
- 用废物取代石英粉和沙子导致压力强度减少14%,曲强度增加较小.
- 微观结构分析显示,废粉中的片状生物促进了水化产品的附着,增强了曲强度.
结论:
- 富含生物的米格马提特-安菲波利特聚合物加工的废粉可以有效地用作矿物添加剂,以提高RPC曲强度.
- 废砂的压力强度较低是RPC压力强度降低的主要原因.
- 这些发现突出了利用工业废物在混凝土技术中的潜力,以提高性能和可持续性.
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