环境友好型造砂与灰,玉米灰或陶废物粉末混合
Slobodan Šupić1, Mirjana Malešev1, Vladan Pantić1
1Department of Civil Engineering and Geodesy, Faculty of Technical Sciences, University of Novi Sad, 21000 Novi Sad, Serbia.
Materials (Basel, Switzerland)
|October 28, 2023
概括
这项研究探讨了使用飞灰,玉米灰和陶废料粉作为砂中的补充水泥材料. 虽然一些物业减少了,但混合砂满足了一般和结构性体的要求,提供了可持续的建筑替代品.
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:
- 建筑行业面临着温室气体排放,资源枯竭和废物管理等生态挑战.
- 废物利用和循环经济原则为减少环境影响提供了可持续的解决方案.
研究的目的:
- 评估将飞灰 (FA),玉米灰 (CCA) 和陶废料粉 (CWP) 作为补充水泥材料 (SCM) 纳入水泥石泥中的可行性.
- 在可加工性,机械强度和耐久性方面评估含有这些废料的砂的性能.
主要方法:
- 制备了12种砂混合物,其中包括3种参考混合物和9种混合物,混合物中含有不同比例的水泥,石灰,砂和SCM (FA,CCA,CWP).
- 评估的属性包括可加工性,压力强度,屈曲强度,干燥散装密度,毛细血管吸水能力,粘合剂粘合强度和水蒸气透性.
- 基于性能的指数和权重三角形被用于对砂混合物的比较分析和排名.
主要成果:
- 混合砂显示压力和屈曲强度降低 (高达60%),毛细血管吸水率增加 (高达100%).
- 一些混合砂与参考砂相比,表现出更高的粘合粘合强度.
- 所有混合砂都符合通用砂标准,并且大多数满足了结构性体应用的标准.
结论:
- 飞灰,玉米灰和陶废料粉可以用作水泥砂中的环保SCM.
- 这些废料有助于减少碳足迹,提高成本效益,并减轻建筑垃圾处理对环境的影响.
- 这些材料的进一步研究和应用可以促进建筑行业的可持续建筑实践和循环经济.
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