Cube spar based stucco gypsum for internal insulation system and method of manufacturing the same

Abstract

The invention relates to an anhydrite base render plaster for an inner heat preservation system and a preparation method thereof. The anhydrite base render plaster for an inner heat preservation system mainly comprises 70 percent to 90 percent of the anhydrite, 0.1 percent to 5 percent of excitant, 5 percent to 20 percent of inorganic activity material, 2 percent to 5 percent of cement, 0.05 percent to 0.2 percent of macromolecule water retention agent and 0.05 percent to 0.3 percent of fibers. The anhydrite hydration activity is complexly excited through adopting calcining powder grinding activation technology and excitant technology, cementation material water resisting property and durability are improved by adopting the inorganic activity material and the anhydrite hydration complementation, and the intensity and cracking resistance of the anhydrite base render plaster are raised by adopting comprehensive measures such as fiber toughness increasing, and the like. The preparation method comprises that the anhydrite after calcined and ground into power is mixed with other raw materials and is evenly agitated. The anhydrite base render plaster for an inner heat preservation system has good workability and application property, long operational time, high bending resistance and compression resistance intensity, good volume stability and exceptional cracking resistance, and is mainly used for the render plaster of the inner heat preservation system of a building outer wall.

Description

technical field [0001] The invention relates to anhydrite-based plastering gypsum for building exterior wall interior insulation systems and a preparation method thereof. Background technique [0002] In 2006, "Nonmetallic Minerals", Volume 29, Issue 2, published "Research on the Application of Anhydrite-based Stucco Gypsum". This paper systematically studies the surface layer and formation anhydrite-based plaster plaster. The gypsum composition of the surface layer is anhydrite powder: inorganic filler (fly ash or slag): reinforcing material: activator: water retaining agent = 80~90: 5~7: 5~13: 2~5: 0.1~0.3 , wherein hemihydrate gypsum in reinforcing material: cement: lime = 15-25: 65-75: 8-15, industrial sulfate in activator: natural sulfate mineral = 8-15: 85-92. The preparation process is as follows: massive gypsum→coarse crushing→ball milling (above 200 mesh)→silo→adding additives, reinforcing materials, inorganic fillers→metering and mixing→packing and leaving the fa...

AI Technical Summary

Problems solved by technology

This document involves the plaster plaster used in the internal thermal insulation system, but only introduces the material quality requirements and construction technology, and does not involve the anhydrite-based plaster material formula and its preparation process