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A platform for research: civil engineering, architecture and urbanism
Thermal insulation sand and preparation method thereof
The invention discloses thermal insulation sand, which comprises the following components in percentage by mass: 45-65% of perlite tailing powder, 3-5% of dolomite, 20-30% of cement, 10-20% of blast furnace granulated slag micro powder, 0.1-0.5% of mirabilite, 0.1-0.5% of a water reducing agent and the balance of water. The invention further discloses a preparation method of the thermal insulation sand. The method comprises the following steps: (1) mixing perlite tailing powder and dolomite, grinding, roasting, cooling, and grinding to obtain mixed powder; (2) mixing mirabilite, a water reducing agent and water to obtain a mixed solution; (3) mixing the mixed powder with the mixed solution, adding cement and blast furnace granulated slag micro powder, and performing pre-wetting stirring to obtain a mixture; (4) balling the mixture to obtain a ball blank; (5) spheroidizing the ball blank, and spraying polyvinyl acetate to obtain a thermal insulation sand blank; (6) curing the thermal insulation sand blank to obtain a cured thermal insulation sand blank; and (7) drying the cured thermal insulation sand blank to obtain the thermal insulation sand. The thermal insulation sand has good thermal insulation performance and compressive strength.
本发明公开了一种保温砂，按质量百分比计，包括以下组分：45～65％珍珠岩尾矿粉、3～5％白云石、20～30％水泥、10～20％高炉粒化矿渣微粉、0.1～0.5％芒硝、0.1～0.5％减水剂以及余量的水，本发明还公开了该保温砂的制备方法，包括以下步骤：(1)将珍珠岩尾矿粉与白云石混合研磨后焙烧，冷却后粉磨，得混合粉末；(2)将芒硝、减水剂与水混合，得混合液；(3)将混合粉末与混合液混合，并加入水泥和高炉粒化矿渣微粉预湿搅拌，得混合料；(4)将混合料成球，得球胚；(5)将球胚抛圆，并喷洒聚醋酸乙烯酯，得保温砂胚；(6)对保温砂胚进行养护，得养护后的保温砂胚；(7)对养护后的保温砂胚进行干燥，得保温砂。本发明的保温砂具有良好的保温性能和抗压强度。
Thermal insulation sand and preparation method thereof
The invention discloses thermal insulation sand, which comprises the following components in percentage by mass: 45-65% of perlite tailing powder, 3-5% of dolomite, 20-30% of cement, 10-20% of blast furnace granulated slag micro powder, 0.1-0.5% of mirabilite, 0.1-0.5% of a water reducing agent and the balance of water. The invention further discloses a preparation method of the thermal insulation sand. The method comprises the following steps: (1) mixing perlite tailing powder and dolomite, grinding, roasting, cooling, and grinding to obtain mixed powder; (2) mixing mirabilite, a water reducing agent and water to obtain a mixed solution; (3) mixing the mixed powder with the mixed solution, adding cement and blast furnace granulated slag micro powder, and performing pre-wetting stirring to obtain a mixture; (4) balling the mixture to obtain a ball blank; (5) spheroidizing the ball blank, and spraying polyvinyl acetate to obtain a thermal insulation sand blank; (6) curing the thermal insulation sand blank to obtain a cured thermal insulation sand blank; and (7) drying the cured thermal insulation sand blank to obtain the thermal insulation sand. The thermal insulation sand has good thermal insulation performance and compressive strength.
本发明公开了一种保温砂，按质量百分比计，包括以下组分：45～65％珍珠岩尾矿粉、3～5％白云石、20～30％水泥、10～20％高炉粒化矿渣微粉、0.1～0.5％芒硝、0.1～0.5％减水剂以及余量的水，本发明还公开了该保温砂的制备方法，包括以下步骤：(1)将珍珠岩尾矿粉与白云石混合研磨后焙烧，冷却后粉磨，得混合粉末；(2)将芒硝、减水剂与水混合，得混合液；(3)将混合粉末与混合液混合，并加入水泥和高炉粒化矿渣微粉预湿搅拌，得混合料；(4)将混合料成球，得球胚；(5)将球胚抛圆，并喷洒聚醋酸乙烯酯，得保温砂胚；(6)对保温砂胚进行养护，得养护后的保温砂胚；(7)对养护后的保温砂胚进行干燥，得保温砂。本发明的保温砂具有良好的保温性能和抗压强度。
Thermal insulation sand and preparation method thereof
保温砂及其制备方法
CAO JUNTAO (author)
2022-01-11
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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