Thermal mortar and preparation method thereof
A technology of thermal insulation mortar and sand, which is applied in the field of building materials, can solve the problems of unsatisfactory performance of thermal insulation mortar, inappropriate method, unbalanced performance of mortar thermal insulation, flexural compressive strength, weathering corrosion resistance, and cracking resistance, etc., to achieve Avoid cracking and falling off, reduce drying shrinkage index, and enhance bonding performance
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Embodiment 1
[0028] Insulation mortar, the proportion of raw materials is: 3kg of cement, 4kg of sand, 11kg of vitrified microbeads, and 8kg of water. At 20μmmm, in a vacuum vitrification furnace, heat to 500°C to soften the surface, then adjust the temperature to 700°C to soften the inside, and then adjust the temperature to 900°C so that it does not expand into a spherical shape when it expands, and uses melting The phosphogypsum in the state is sprayed on the surface, and the sprayed phosphogypsum accounts for 3% of the perlite mass, and then the temperature is adjusted to vitrify and close the cells at 1100°C, and then the molten magnesium stearate is sprayed on the surface, and the spraying amount is 10% of the mass of perlite, after cooling to 60°C, spray silica airgel on its surface, the spraying amount is 3% of the mass of perlite, and cool to normal temperature to obtain.
[0029] According to the traditional mortar preparation method, the raw material components of the mortar are...
Embodiment 2
[0034] Insulation mortar, the raw materials are 8kg of cement, 9kg of sand, 19kg of vitrified microbeads, and 15kg of water;
[0035] The vitrified microbeads are made by grinding perlite into powder, and classifying and selecting them so that the particle size is between 1mm. In a vacuum vitrification furnace, heat to 600°C to soften the surface, and then adjust the temperature to 800°C. ℃ to soften the inside, and then adjust the temperature to 1000 ℃ so that it does not expand into a spherical shape, and spray phosphogypsum in a molten state on the surface. The amount of phosphogypsum sprayed accounts for 7% of the mass of perlite, and then adjust the temperature It is vitrified and closed cells at 1200°C, and then sprayed on the surface with molten magnesium stearate, the spraying amount accounts for 27% of the perlite mass, and after cooling to 80°C, spray silica airgel on the surface , the spraying amount is 9% of the perlite mass, and cooled to normal temperature, that ...
Embodiment 3
[0045] Insulation mortar, the raw material components are 5kg of cement, 6kg of sand, 17kg of vitrified microbeads, and 11kg of water. The vitrified microbeads are made by grinding perlite into powder and grading and selecting them so that the particle size is between 200μm. In the vacuum vitrification furnace, heat to 550°C to soften the surface, then adjust the temperature to 730°C to soften the inside, and then adjust the temperature to 970°C so that it will not expand into a spherical shape when it expands, and use molten phosphorus Gypsum is sprayed on the surface, the amount of phosphogypsum sprayed accounts for 5% of the mass of perlite, and then the temperature is adjusted to vitrified closed cells at 1140°C, and then magnesium stearate in molten state is sprayed on the surface, and the amount of spraying is 5% of the mass of perlite After cooling to 70°C, spray silica airgel on its surface, the spraying amount is 6% of the perlite mass, and cool to normal temperature t...
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