碳化底渣颗粒在3D混凝土打印中的影响
Karolina Butkute1, Vitoldas Vaitkevicius1, Maris Sinka2
1Faculty of Civil Engineering and Architecture, Kaunas University of Technology, Studentų g. 48, 51367 Kaunas, Lithuania.
Materials (Basel, Switzerland)
|June 10, 2023
概括
本研究探讨使用底 (BS) 废物来制造3D打印混凝土的人工聚合物 (AAs). 这些AAs的碳化可能会封存大量的二氧化碳,提供可持续的建筑材料.
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:
- 建筑垃圾,特别是垃圾焚烧产生的地底渣 (BS),面临着处置挑战.
- 传统的混凝土生产具有显著的碳足迹.
- 3D混凝土打印提供了减少材料使用和浪费的潜力.
研究的目的:
- 调查使用BS废弃物生产用于3D混凝土打印的人工聚合物 (AAs) 的可行性.
- 评估碳化过程作为AAs.内二氧化碳封存的方法.
- 评估加入碳酸亚对3D打印混凝土性能的影响.
主要方法:
- 通过将BS废物与普通波特兰水泥 (OPC),水合石灰和烧焦页岩灰 (BSA) 等粘合剂相结合,制造人工聚合物 (AAs).
- 为制造的AA实施碳化工艺,以潜在地捕获CO2.
- 3D打印混凝土复合材料中,不同百分比 (0%,25%,50%) 的天然聚合物被碳酸亚取代.
- 分析3D打印混凝土的物理,机械和可加工性质.
主要成果:
- 该研究表明,从BS废物中生产AA的可行方法.
- 亚的碳化显示出理论上每立方米颗粒约有126公斤/立方米二氧化碳的潜力.
- 3D打印混凝土,其中含有高达50%的碳酸甲,已成功生产和分析.
结论:
- 底废料可以用来制造用于3D混凝土打印的人工聚合物.
- 这些人工聚合物的碳化为混凝土中的二氧化碳减排提供了一个有前途的途径.
- 需要进一步的研究来优化该过程,并充分描述这些新型混凝土复合材料的长期性能.
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