A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Surface layer plastering gypsum and preparation method thereof
The invention belongs to the field of building materials, and provides a surface layer plastering gypsum and a preparation method thereof, the surface layer plastering gypsum is prepared from the following raw materials by weight: 65-85 parts of modified gypsum powder; 10 to 15 parts of diatomite; 3-5 parts of heavy calcium carbonate; 5 to 10 parts of talcum powder; 0.2 to 0.5 part of a retarder; 0.1 to 0.4 part of a water retaining agent; 0.2 to 0.8 part of a water reducing agent; 1-2 parts of redispersible latex powder; the modified gypsum powder is obtained by adjusting the pH value of building gypsum fine powder to 8-10 through ash calcium. According to the surface layer plastering gypsum provided by the invention, gypsum sources are not selected, and all performance parameters meet national standard requirements; the prepared surface layer plastering gypsum is reasonable in gradation, good in plastering construction performance, high in whiteness, fine and smooth in finishing, capable of effectively reducing the phenomena of powder falling, falling and cracking, low in cost and beneficial to market popularization.
本发明属于建筑材料领域，本发明提供了一种面层抹灰石膏及制作方法，其由以下重量份的原料制成：65‑85份的改性石膏粉；10‑15份的硅藻土；3‑5份的重质碳酸钙；5‑10份的滑石粉；0.2‑0.5份的缓凝剂；0.1‑0.4份的保水剂；0.2‑0.8份的减水剂；1‑2份的可再分散乳胶粉；所述改性石膏粉由建筑石膏细粉通过灰钙调整pH值8‑10而获得。本发明提供的面层抹灰石膏不挑石膏来源，各项性能参数均符合国家标准要求；所制面层抹灰石膏级配合理，抹面施工性能好，白度较高，收光细腻，可有效减少掉粉、脱落与开裂现象，而且成本较低，利于市场推广。
Surface layer plastering gypsum and preparation method thereof
The invention belongs to the field of building materials, and provides a surface layer plastering gypsum and a preparation method thereof, the surface layer plastering gypsum is prepared from the following raw materials by weight: 65-85 parts of modified gypsum powder; 10 to 15 parts of diatomite; 3-5 parts of heavy calcium carbonate; 5 to 10 parts of talcum powder; 0.2 to 0.5 part of a retarder; 0.1 to 0.4 part of a water retaining agent; 0.2 to 0.8 part of a water reducing agent; 1-2 parts of redispersible latex powder; the modified gypsum powder is obtained by adjusting the pH value of building gypsum fine powder to 8-10 through ash calcium. According to the surface layer plastering gypsum provided by the invention, gypsum sources are not selected, and all performance parameters meet national standard requirements; the prepared surface layer plastering gypsum is reasonable in gradation, good in plastering construction performance, high in whiteness, fine and smooth in finishing, capable of effectively reducing the phenomena of powder falling, falling and cracking, low in cost and beneficial to market popularization.
本发明属于建筑材料领域，本发明提供了一种面层抹灰石膏及制作方法，其由以下重量份的原料制成：65‑85份的改性石膏粉；10‑15份的硅藻土；3‑5份的重质碳酸钙；5‑10份的滑石粉；0.2‑0.5份的缓凝剂；0.1‑0.4份的保水剂；0.2‑0.8份的减水剂；1‑2份的可再分散乳胶粉；所述改性石膏粉由建筑石膏细粉通过灰钙调整pH值8‑10而获得。本发明提供的面层抹灰石膏不挑石膏来源，各项性能参数均符合国家标准要求；所制面层抹灰石膏级配合理，抹面施工性能好，白度较高，收光细腻，可有效减少掉粉、脱落与开裂现象，而且成本较低，利于市场推广。
Surface layer plastering gypsum and preparation method thereof
一种面层抹灰石膏及制作方法
REN LI (author) / ZHANG JUNXING (author) / SUN SHANKUN (author) / ZHAO HEJUN (author) / WU NAN (author) / WANG ZHEN (author) / QIAO MENGKUI (author) / LIU YONGLIANG (author) / ZHANG ZHIQIANG (author) / REN ZEYU (author)
2023-03-28
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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