Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The invention discloses a preparation method of low-cost heat-insulating plastering gypsum, wherein the method comprises the steps: calcining desulfurized gypsum to obtain beta-hemihydrate gypsum, uniformly stirring the beta-hemihydrate gypsum with causticized white mud, and uniformly stirring the mixture with hydroxypropyl methyl cellulose, lignocellulose, a heat-insulating modifier, Bonite and calcium sulphoaluminate cement. According to the low-cost heat-insulation plastering gypsum, imported redispersable rubber powder and a set retarder which are high in cost do not need to be added, causticized white mud slag and calcium sulphoaluminate cement are adopted for replacement, the strength of the plastering gypsum can be achieved, the cost is low, and the shrinkage cracking phenomenon cannot be caused. According to the invention, a small amount of Bonite is added, so that the strength of the plastering gypsum can be effectively improved; a small amount of the heat insulation modifieris added, so that the heat insulation performance of the plastering gypsum can be effectively improved on the premise of effectively controlling the cost.
本发明公开了一种低成本隔热粉刷石膏的制备方法，采用脱硫石膏进行煅烧，得到β型半水石膏与苛化白泥渣搅拌均匀后再与羟丙基甲基纤维素、木质纤维素、隔热改性剂、博耐特和硫铝酸钙水泥，搅拌均匀后即可。本发明的低成本隔热粉刷石膏无需加入成本高昂的进口可在分散胶粉和缓凝剂，而采用苛化白泥渣和硫铝酸钙水泥进行替代，不但可以达到粉刷石膏的强度，而且成本低、还不会造成收缩开裂现象。本发明中加入少量的博耐特，不但可以有效提升粉刷石膏的强度，而且加入少量的隔热改性剂，在有效控制成本的前提下，可以有效提升粉刷石膏的隔热性能。
The invention discloses a preparation method of low-cost heat-insulating plastering gypsum, wherein the method comprises the steps: calcining desulfurized gypsum to obtain beta-hemihydrate gypsum, uniformly stirring the beta-hemihydrate gypsum with causticized white mud, and uniformly stirring the mixture with hydroxypropyl methyl cellulose, lignocellulose, a heat-insulating modifier, Bonite and calcium sulphoaluminate cement. According to the low-cost heat-insulation plastering gypsum, imported redispersable rubber powder and a set retarder which are high in cost do not need to be added, causticized white mud slag and calcium sulphoaluminate cement are adopted for replacement, the strength of the plastering gypsum can be achieved, the cost is low, and the shrinkage cracking phenomenon cannot be caused. According to the invention, a small amount of Bonite is added, so that the strength of the plastering gypsum can be effectively improved; a small amount of the heat insulation modifieris added, so that the heat insulation performance of the plastering gypsum can be effectively improved on the premise of effectively controlling the cost.
本发明公开了一种低成本隔热粉刷石膏的制备方法，采用脱硫石膏进行煅烧，得到β型半水石膏与苛化白泥渣搅拌均匀后再与羟丙基甲基纤维素、木质纤维素、隔热改性剂、博耐特和硫铝酸钙水泥，搅拌均匀后即可。本发明的低成本隔热粉刷石膏无需加入成本高昂的进口可在分散胶粉和缓凝剂，而采用苛化白泥渣和硫铝酸钙水泥进行替代，不但可以达到粉刷石膏的强度，而且成本低、还不会造成收缩开裂现象。本发明中加入少量的博耐特，不但可以有效提升粉刷石膏的强度，而且加入少量的隔热改性剂，在有效控制成本的前提下，可以有效提升粉刷石膏的隔热性能。
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