Mortar for composition of concrete wall

文件类型：PDF文档
文件大小：1329K
PURPOSE : A mortar for the basic background of concrete wall is provided, to allow the background of concrete to be made uniform rapidly by preventing the falling, coming off and set contracting of cement, thereby reducing the processing time and improving the productivity. CONSTITUTION : The mortar comprises 30-50 wt% of cement; 40-65 wt% of micro aggregate with a size of 0.6 mm or less; 2-7 wt% of a mixture comprising calcium sulfur aluminate-based cement, anhydrous gypsum and quick lime; 0.05-0.5 wt% of a moisturizing agent; 0.2-1.0 wt% of a re-emulsion-type powdered resin; 0.05-0.5 wt% of a dispersant; 0.05-0.5 wt% of an antifoaming agent; and 0.01-0.5 wt% of a fibroid admixture. Preferably the moisturizing agent is hydroxymethyl cellulose; and the re-emulsion-type powered resin is at least one selected from the group consisting of an acryl-based resin, a vinyl acetate-based resin, an ethylene-vinyl acetate-based resin and a synthetic rubber resin.