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A platform for research: civil engineering, architecture and urbanism
Preparation method of gypsum slag cement with high plasticity
The invention discloses a preparation method of high-plasticity gypsum slag cement, and belongs to the technical field of building materials. The specific method comprises the following steps: (1) grinding phosphogypsum by using a horizontal ball mill for 15 minutes for later use; (2) adding slaked lime accounting for 1-2% of the mass of the ardealite into the material ground in the step (1) according to the proportion, uniformly mixing, fully carrying out neutralization reaction, removing impurities such as soluble phosphorus and soluble fluorine, putting the prepared ardealite into an air dry oven, drying at 105 DEG C until the weight is constant, removing free water from the ardealite, and crushing to obtain the ardealite powder. Then grinding in a horizontal ball mill until the specific surface area is 400m < 2 >/kg; and (3) mixing and grinding the material in the step (2), the Portland cement clinker and the slag with 12-15% of Al2O3 in proportion for 1 hour to prepare the cement. Compared with other system gypsum-based cement, the gypsum slag cement provided by the invention has higher early strength, and the higher early strength can shorten the construction time and greatly shorten the construction period. The construction time is shortened and the construction period is greatly shortened.
一种可塑性强的石膏矿渣水泥制备方法，属于建筑材料技术领域。具体方法步骤为：①磷石膏用卧式球磨机粉磨15min后备用；②将步骤①粉磨后的物料按比例添加磷石膏质量的1％—2％熟石灰混合均匀，使其充分发生中和反应，去除杂质可溶性磷和可溶性氟，将制得的磷石膏放置于鼓风干燥箱中，在105℃下干燥至恒重，使其脱去游离水，然后在卧式球磨机中粉磨至比表面积为400m2/kg；③按比例将步骤②的物料、硅酸盐水泥熟料和Al2O3的含量在12％‑15％的矿渣混合粉磨1h，制备水泥。本发明提供的石膏矿渣水泥较其他体系石膏基水泥早期强度高，较高的早期强度可以缩短施工时间，大大减少工期。缩短施工时间，大大减少工期。
Preparation method of gypsum slag cement with high plasticity
The invention discloses a preparation method of high-plasticity gypsum slag cement, and belongs to the technical field of building materials. The specific method comprises the following steps: (1) grinding phosphogypsum by using a horizontal ball mill for 15 minutes for later use; (2) adding slaked lime accounting for 1-2% of the mass of the ardealite into the material ground in the step (1) according to the proportion, uniformly mixing, fully carrying out neutralization reaction, removing impurities such as soluble phosphorus and soluble fluorine, putting the prepared ardealite into an air dry oven, drying at 105 DEG C until the weight is constant, removing free water from the ardealite, and crushing to obtain the ardealite powder. Then grinding in a horizontal ball mill until the specific surface area is 400m < 2 >/kg; and (3) mixing and grinding the material in the step (2), the Portland cement clinker and the slag with 12-15% of Al2O3 in proportion for 1 hour to prepare the cement. Compared with other system gypsum-based cement, the gypsum slag cement provided by the invention has higher early strength, and the higher early strength can shorten the construction time and greatly shorten the construction period. The construction time is shortened and the construction period is greatly shortened.
一种可塑性强的石膏矿渣水泥制备方法，属于建筑材料技术领域。具体方法步骤为：①磷石膏用卧式球磨机粉磨15min后备用；②将步骤①粉磨后的物料按比例添加磷石膏质量的1％—2％熟石灰混合均匀，使其充分发生中和反应，去除杂质可溶性磷和可溶性氟，将制得的磷石膏放置于鼓风干燥箱中，在105℃下干燥至恒重，使其脱去游离水，然后在卧式球磨机中粉磨至比表面积为400m2/kg；③按比例将步骤②的物料、硅酸盐水泥熟料和Al2O3的含量在12％‑15％的矿渣混合粉磨1h，制备水泥。本发明提供的石膏矿渣水泥较其他体系石膏基水泥早期强度高，较高的早期强度可以缩短施工时间，大大减少工期。缩短施工时间，大大减少工期。
Preparation method of gypsum slag cement with high plasticity
一种可塑性强的石膏矿渣水泥制备方法
ZHANG YANNIAN (author) / ZHU DEBIN (author)
2023-10-03
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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