Weiyi Ji, Yifan Zhou, Ziwei Chen, Jian-Xin Lu, Christopher Cheeseman, Chi-Sun Poon
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Improved foamed glass using carbonated recycled concrete powder as a foaming agent
A novel foaming agent derived from carbonated recycled concrete powder (CRCP) has been employed to produce foamed glass as an alternative to commercial CaCO3. Three sintering temperatures (750, 800, and 850°C) and five dosages (1%, 2%, 3%, 5%, and 9%) were conducted for two foaming agents (CRCP and CaCO3). The results demonstrated that the CRCP samples perform better than those produced with CaCO3 as the foaming agent. This can be attributed to the more uniform pore structure observed through scanning electron microscopy and X-ray computed tomography analysis, and enhanced micro-mechanical strength determined by nanoindentation testing. The CRCP exhibited a moderate gas generation process, accompanied by the decomposition residues that facilitated enhanced crystalline formation within the matrix, ultimately resulting in improved performance. The findings unveiled the underlying mechanism behind the disparity in foaming properties between the two agents and highlighted the potential opportunities for waste material substitution in this industry.
期刊介绍：
The Journal of the American Ceramic Society contains records of original research that provide insight into or describe the science of ceramic and glass materials and composites based on ceramics and glasses. These papers include reports on discovery, characterization, and analysis of new inorganic, non-metallic materials; synthesis methods; phase relationships; processing approaches; microstructure-property relationships; and functionalities. Of great interest are works that support understanding founded on fundamental principles using experimental, theoretical, or computational methods or combinations of those approaches. All the published papers must be of enduring value and relevant to the science of ceramics and glasses or composites based on those materials.
Papers on fundamental ceramic and glass science are welcome including those in the following areas:
Enabling materials for grand challenges[...]
Materials design, selection, synthesis and processing methods[...]
Characterization of compositions, structures, defects, and properties along with new methods [...]
Mechanisms, Theory, Modeling, and Simulation[...]
JACerS accepts submissions of full-length Articles reporting original research, in-depth Feature Articles, Reviews of the state-of-the-art with compelling analysis, and Rapid Communications which are short papers with sufficient novelty or impact to justify swift publication.
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