Kozub Barbara, Dudek Jan, Melnychuk Mykola
Department of Materials Engineering, Faculty of Materials Engineering and Physics, Cracow University of Technology, 37 Jana Pawła II Street, 31-864 Cracow, Poland.
Department of Materials Science, Lutsk National Technical University, Lvivska 75, 43018 Lutsk, Ukraine.
Materials (Basel). 2024 Nov 27;17(23):5819. doi: 10.3390/ma17235819.
Geopolymers are a modern class of construction materials that show significant potential for sustainable development, especially through the use of industrial wastes such as fly ash. This study investigated the effect of different oil additives on the properties of fly ash-based geopolymers, with particular emphasis on the use of both new and used oils. Test samples were prepared using class F fly ash and a 10-molar solution of sodium hydroxide and an aqueous solution of sodium silicate. Oil additives were added at 5%, 10% and 15% by weight. The physical and mechanical properties of the samples were assessed by measuring density, thermal conductivity, compressive and flexural strength, and by analyzing porosity and microstructure. The results showed that oil additives significantly affected the pore structure and mechanical properties of the geopolymers. Furthermore, the type and condition of the used oil determined the mechanical properties, including compressive and flexural strength. Research indicates the possibility of using oils as additives to geopolymers, which helps improve their physical properties and promotes sustainable development through recycling oil waste.
地质聚合物是一类现代建筑材料，具有显著的可持续发展潜力，特别是通过使用粉煤灰等工业废料。本研究调查了不同油添加剂对粉煤灰基地质聚合物性能的影响，尤其着重于新油和废油的使用。测试样品采用F类粉煤灰、10摩尔的氢氧化钠溶液和硅酸钠水溶液制备。油添加剂按重量的5%、10%和15%添加。通过测量密度、热导率、抗压强度和抗弯强度，并分析孔隙率和微观结构来评估样品的物理和力学性能。结果表明，油添加剂显著影响了地质聚合物的孔隙结构和力学性能。此外，废油的类型和状况决定了力学性能，包括抗压强度和抗弯强度。研究表明，将油用作地质聚合物的添加剂是有可能的，这有助于改善其物理性能，并通过回收废油促进可持续发展。
