Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Plastering gypsum and preparation method thereof
The invention provides plastering gypsum which includes, by weight, 40-60 parts of building gypsum, 32-55 parts of quartz sand, 5-20 parts of heavy calcium powder, 0.35-1.50 parts of a tackifier, 0.05-0.50 parts of a water retention agent, 0.02-0.08 parts of a set retarder, 0.10-0.50 parts of a plasticizer, 1.0-10.0 parts of an anti-cracking agent and 0.0-5.0 parts of a light-weight filling material, wherein the anti-cracking agent includes 80-95 wt% of heavy calcium powder and the balanced being aramid fiber. The plastering gypsum is added with the anti-cracking agent, so that the plastering gypsum is improved in anti-crack toughness. In addition, the plastering gypsum is also added with the light-weight filling material, which can dissipate shrinkage stress generated by volume reduction of the plastering gypsum due to moisture volatilization, thereby further ensuring a leveling layer of the plastering gypsum to be free of cracking. The invention also provides a preparation method of the plastering gypsum.
Plastering gypsum and preparation method thereof
The invention provides plastering gypsum which includes, by weight, 40-60 parts of building gypsum, 32-55 parts of quartz sand, 5-20 parts of heavy calcium powder, 0.35-1.50 parts of a tackifier, 0.05-0.50 parts of a water retention agent, 0.02-0.08 parts of a set retarder, 0.10-0.50 parts of a plasticizer, 1.0-10.0 parts of an anti-cracking agent and 0.0-5.0 parts of a light-weight filling material, wherein the anti-cracking agent includes 80-95 wt% of heavy calcium powder and the balanced being aramid fiber. The plastering gypsum is added with the anti-cracking agent, so that the plastering gypsum is improved in anti-crack toughness. In addition, the plastering gypsum is also added with the light-weight filling material, which can dissipate shrinkage stress generated by volume reduction of the plastering gypsum due to moisture volatilization, thereby further ensuring a leveling layer of the plastering gypsum to be free of cracking. The invention also provides a preparation method of the plastering gypsum.
Plastering gypsum and preparation method thereof
ZHAO SHOUJIA (Autor:in) / YANG FUCHENG (Autor:in) / TIAN CUI (Autor:in) / SHEN JING (Autor:in)
09.12.2015
Patent
Elektronische Ressource
Englisch
IPC:
C04B
Kalk
,
LIME
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