Using multi-solid wastes to prepare foam ceramics, it can not only recycle a large amount of solid waste, but also obtain products with excellent performance. In this study, foam ceramics were prepared by sintering method using recycled waste concrete powder and waste glass power as main raw material. The effect of foaming agent content on the physical properties and pore structure of foam ceramics were investigated. The matching relationship between the amount of flux and foaming agent was also analyzed. The results revealed that when the flux was 5 g and the foaming agent was 10 g, the foam ceramics showed the best overall performance. The compressive strength, bulk density, water absorption and porosity were 6.43 MPa, 1.10 g/cm3, 2.03 % and 54.35 %, respectively. At this time, the pore size distribution was optimal, and mesopore occupied the vast majority. The fractal dimension and pore shape factor reached the minimum of 1.344 and 1.076. If the foaming agent was too much, the amount of flux should be appropriately increased. When Na2CO3 content were 12 g and 14 g, the borax were at least 7 g and 9 g, respectively. The matching of flux and foaming agent can significantly improve the foaming effect. The experimental results showed that it was feasible to prepare foam ceramics by using recycled waste concrete powder and waste glass power. The prepared foam ceramics can basically reach or even exceed the current mainstream level. In addition, this foam ceramics showed great environmental and economic prospects.

中文翻译：

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再生废混凝土粉与废玻璃粉的综合利用制备泡沫陶瓷


利用多固体废物制备泡沫陶瓷，不仅可以回收大量的固体废物，还可以获得性能优良的产品。本研究以回收的废混凝土粉和废玻璃粉为主要原料，采用烧结法制备泡沫陶瓷。研究了发泡剂含量对泡沫陶瓷物理性能和孔隙结构的影响。还分析了助焊剂量和发泡剂之间的匹配关系。结果表明，当助焊剂为 5 g，发泡剂为 10 g 时，泡沫陶瓷表现出最佳的整体性能。抗压强度、堆积密度、吸水率和孔隙率分别为 6.43 MPa、1.10 g/cm3、2.03 % 和 54.35 %。此时，孔径分布最优，mesopore 占据了绝大多数。分形维数和孔形因子达到最小值 1.344 和 1.076。如果发泡剂过多，应适当增加助焊剂的用量。当 Na2CO3 含量为 12 g 和 14 g 时，硼砂至少分别为 7 g 和 9 g。助焊剂和发泡剂的匹配可以显着提高发泡效果。实验结果表明，利用回收的废混凝土粉末和废玻璃粉制备泡沫陶瓷是可行的。制备的泡沫陶瓷基本可以达到甚至超过目前的主流水平。此外，这种泡沫陶瓷显示出巨大的环境和经济前景。