| 摘要 |
The process comprises synthesizing quicklime by calcination of limestone blocks at a temperature of >= 800[deg] C to obtain particles of lime, where the limestone blocks have a mean size of 1-15 mm, a purity of 90 wt.% and a open porosity of 0-25%, mixing the particles of lime, water and silica in a calcium oxide/silicon dioxide molar ratio of 0.8-1.2 and in a weight ratio of water/(calcium oxide + silicon dioxide) of 3-10 to obtain a cream of components, and performing hydrothermal synthesis by heating the cream at a temperature of 130[deg] C to obtain ceramic compound. The process comprises synthesizing quicklime by calcination of limestone blocks at a temperature of >= 800[deg] C to obtain particles of lime, where the limestone blocks have a mean size of 1-15 mm, a purity of 90 wt.% and a open porosity of 0-25%, mixing the particles of lime, water and silica in a calcium oxide/silicon dioxide molar ratio of 0.8-1.2 and in a weight ratio of water/(calcium oxide + silicon dioxide) of 3-10 to obtain a cream of components, performing hydrothermal synthesis by heating the cream at a temperature of 130[deg] C under a saturated water vapor pressure of 3x 10 5>Pa to obtain ceramic compound, and drying the ceramic compound at a temperature of 100-450[deg] C. All or part of cells of a construction brick with honeycomb structure is partially or completely filled with the 50% of cream of the components. The construction brick is subjected to the hydrothermal synthesis step and the drying step, and is wetted with water before filling with cream. Independent claims are included for: (1) a process for improving thermal insulation performance of construction brick having honeycomb structure; and (2) a porous material. |
