Foamed ceramic and preparation method thereof
A technology of foam ceramics and silt, applied in the field of foam ceramics and its preparation, can solve the problems of mechanical strength and high porosity, and achieve a balance between flexural strength and porosity, high porosity, and strong gas sealing ability Effect
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[0031] Example 1:
[0032] This embodiment provides a foamed ceramic, including the following raw materials: 75 g of silty shale, 10 g of fly ash, 15 g of steel slag, and 0.2 g of silicon carbide; the particle size of the silty shale is 80 mesh, and the The particle size is 100 mesh, the particle size of steel slag is 100 mesh, and the particle size of silicon carbide is 700 mesh; in terms of mass percentage, the composition of the silty shale includes 67.79% SiO 2 , 8.52%CaO, 7.64%Al 2 O 3 , 3.28%Fe 2 O 3 , 1.66%MgO, 1.37%K 2O; by mass percentage, the composition of fly ash includes 45.10% SiO 2 , 23.89%Al 2 O 3 , 12.86%Fe 2 O 3 , 3.33%CaO, 1.72%K 2 O, 1.60% Na 2 O, 1.29%MgO; by mass percentage, the composition of steel slag includes 42.25%CaO, Fe 2 O 3 +FeO25.14%, 15.60%SiO 2 , 7.07%MgO, 1.80%Al 2 O 3 .
[0033] The preparation method of the above-mentioned foamed ceramics comprises the following steps:
[0034] (1) Mix the silty shale, fly ash, steel slag,...
Example Embodiment
[0037] Example 2:
[0038] This embodiment provides a foamed ceramic, including the following raw materials: 70 g of silty shale, 17 g of fly ash, 13 g of steel slag, and 0.2 g of silicon carbide; the particle size of the silty shale is 150 mesh, and the The particle size is 150 mesh, the particle size of steel slag is 150 mesh, and the particle size of silicon carbide is 700 mesh; in terms of mass percentage, the composition of the silty shale includes 67.79% SiO 2 , 8.52%CaO, 7.64%Al 2 O 3 , 3.28%Fe 2 O 3 , 1.66%MgO, 1.37%K 2 O; by mass percentage, the composition of fly ash includes 45.10% SiO 2 , 23.89%Al 2 O 3 , 12.86%Fe 2 O 3 , 3.33%CaO, 1.72%K 2 O, 1.60% Na 2 O, 1.29%MgO; by mass percentage, the composition of steel slag includes 42.25%CaO, Fe 2 O 3 +FeO25.14%, 15.60%SiO 2 , 7.07%MgO, 1.80%Al 2 O 3 .
[0039] The preparation method of the above-mentioned foamed ceramics comprises the following steps:
[0040] (1) Mix the silty shale, fly ash, steel sla...
Example Embodiment
[0042] Example 3:
[0043] This embodiment provides a foamed ceramic, including the following raw materials: 65 g of silty shale, 18 g of fly ash, 17 g of steel slag, and 0.3 g of silicon carbide; the particle size of the silty shale is 100 mesh, and the The particle size is 100 mesh, the particle size of steel slag is 100 mesh, and the particle size of silicon carbide is 700 mesh; in terms of mass percentage, the composition of the silty shale includes 67.79% SiO 2 , 8.52%CaO, 7.64%Al 2 O 3 , 3.28%Fe 2 O 3 , 1.66%MgO, 1.37%K 2 O; by mass percentage, the composition of fly ash includes 45.10% SiO 2 , 23.89%Al 2 O 3 , 12.86%Fe 2 O 3 , 3.33%CaO, 1.72%K 2 O, 1.60% Na 2 O, 1.29%MgO; by mass percentage, the composition of steel slag includes 42.25%CaO, Fe 2 O 3 +FeO25.14%, 15.60%SiO 2 , 7.07%MgO, 1.80%Al 2 O 3 .
[0044] The preparation method of the above-mentioned foamed ceramics comprises the following steps:
[0045] (1) Mix the silty shale, fly ash, steel sla...
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