Utilization of carbon-bonded magnesia refractory waste in MOC-based composites: Towards CO2-neutral building materials

IF 2.9 Q1 MATERIALS SCIENCE, CERAMICS

Open Ceramics Pub Date : 2024-04-15 DOI:10.1016/j.oceram.2024.100592

Ondřej Jankovský , Adéla Jiříčková , Martina Záleská , Milena Pavlíková , Zbyšek Pavlík , Adam Pivák , Christos G. Aneziris , Anna-Marie Lauermannová

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Abstract

In the steel industry, a large amount of diverse waste is generated, including carbon-bonded magnesia-rich waste originating from refractories. This study focused on the development and characterization of composite material based on magnesium oxychloride cement (MOC), with an emphasis on incorporating MgO–C-based refractory waste (CBMW) as a sustainable filler. To reach the best possible material properties, two different size fractions were applied in various ratios, completely replacing quartz sand. A comprehensive analysis of all composite material samples was conducted utilizing various analytical techniques, XRD, SEM, EDS or STA-MS. Mechanical properties such as compressive strength, flexural strength, and Young's modulus of elasticity were evaluated. Even though even the best sample did not surpass the mechanical properties for the reference, compressive strength 78.1 MPa was achieved, which is a more than sufficient value for most indoor applications.

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在基于 MOC 的复合材料中利用碳键氧化镁耐火材料废料：打造二氧化碳中性建筑材料

在钢铁工业中，会产生大量不同的废料，其中包括来自耐火材料的富含碳键镁的废料。本研究的重点是开发和表征基于氧氯化镁水泥（MOC）的复合材料，重点是将氧化镁-碳基耐火材料废料（CBMW）作为可持续填料。为了达到最佳的材料性能，以不同的比例使用了两种不同粒度的馏分，完全取代了石英砂。利用 XRD、SEM、EDS 或 STA-MS 等各种分析技术对所有复合材料样品进行了综合分析。对抗压强度、抗弯强度和杨氏弹性模量等机械性能进行了评估。尽管最好的样品也没有超过参考材料的机械性能，但其抗压强度达到了 78.1 兆帕，这个数值对于大多数室内应用来说都绰绰有余。

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来源期刊

Open Ceramics Materials Science-Materials Chemistry

CiteScore

4.20

自引率

0.00%

发文量

102

审稿时长

67 days