Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method of gypsum block and gypsum block prepared by preparation method
The invention relates to a preparation method of a gypsum block and the gypsum block prepared by the preparation method. The method comprises the following steps: 1) moulding by casting: chemical gypsum, hemihydrate gypsum and water are stirred to be uniform to obtain mixed slurry, the mixed slurry is poured into a mold, standing solidification and demolding are conducted to obtain a to-be-autoclaved building block, the mass ratio of the chemical gypsum to the hemihydrate gypsum is (63-90): (10-35), and the water content of the mixed slurry is 29%-35%; 2) high-temperature autoclaving treatment: the obtained to-be-autoclaved building blocks are stacked, and high-temperature autoclaving is carried out at 135-165 DEG C for 2-10 hours; and 3) wet release maintenance: the autoclaved building block is placed in an environment with the relative humidity RH of more than or equal to 80% for more than or equal to 5 days to obtain the gypsum building block. The chemical gypsum is used as a raw material, the added semi-hydrated gypsum is used as a cementing material, a large amount of chemical gypsum can be consumed, the high-strength gypsum building block is prepared by molding and then autoclaving, the process is simple, and the technological process is energy-saving and environment-friendly.
本发明涉及一种石膏砌块制备方法及由其制备的石膏砌块，1)浇注成型：将化学石膏、半水石膏和水拌和均匀后得到混合浆料，将混合浆料浇注模具中，静置凝固、脱模得到待蒸压砌块，所述化学石膏与半水石膏的质量比为(63‑90)：(10～35)，所述混合浆料的含水率为29～35％；2)高温蒸压处理：将得到的待蒸压砌块堆码后在135～165℃下，高温蒸压2～10h；3)湿放养护：将蒸压处理后的砌块在相对湿度RH≥80％环境中，放置≥5天，得到石膏砌块。本发明以化学石膏为原料，以外加半水石膏为胶凝材料，可用以大宗消耗化学石膏，通过先成型‑再蒸压制备得到高强石膏砌块，工艺简单、工艺过程节能环保。
Preparation method of gypsum block and gypsum block prepared by preparation method
The invention relates to a preparation method of a gypsum block and the gypsum block prepared by the preparation method. The method comprises the following steps: 1) moulding by casting: chemical gypsum, hemihydrate gypsum and water are stirred to be uniform to obtain mixed slurry, the mixed slurry is poured into a mold, standing solidification and demolding are conducted to obtain a to-be-autoclaved building block, the mass ratio of the chemical gypsum to the hemihydrate gypsum is (63-90): (10-35), and the water content of the mixed slurry is 29%-35%; 2) high-temperature autoclaving treatment: the obtained to-be-autoclaved building blocks are stacked, and high-temperature autoclaving is carried out at 135-165 DEG C for 2-10 hours; and 3) wet release maintenance: the autoclaved building block is placed in an environment with the relative humidity RH of more than or equal to 80% for more than or equal to 5 days to obtain the gypsum building block. The chemical gypsum is used as a raw material, the added semi-hydrated gypsum is used as a cementing material, a large amount of chemical gypsum can be consumed, the high-strength gypsum building block is prepared by molding and then autoclaving, the process is simple, and the technological process is energy-saving and environment-friendly.
本发明涉及一种石膏砌块制备方法及由其制备的石膏砌块，1)浇注成型：将化学石膏、半水石膏和水拌和均匀后得到混合浆料，将混合浆料浇注模具中，静置凝固、脱模得到待蒸压砌块，所述化学石膏与半水石膏的质量比为(63‑90)：(10～35)，所述混合浆料的含水率为29～35％；2)高温蒸压处理：将得到的待蒸压砌块堆码后在135～165℃下，高温蒸压2～10h；3)湿放养护：将蒸压处理后的砌块在相对湿度RH≥80％环境中，放置≥5天，得到石膏砌块。本发明以化学石膏为原料，以外加半水石膏为胶凝材料，可用以大宗消耗化学石膏，通过先成型‑再蒸压制备得到高强石膏砌块，工艺简单、工艺过程节能环保。
Preparation method of gypsum block and gypsum block prepared by preparation method
一种石膏砌块制备方法及由其制备的石膏砌块
17.04.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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