COMPOSITION OF SULPHATE RESISTANCE POLYMER REPAIR MORTAR

摘要

PURPOSE: A sulfate-resistant polymer-repairing mortar composition is provided to suppress the abrasion of rebar and the generation of surface cracks on concrete due to sulfate by using granulated slag powder and air-cooled slag powder. CONSTITUTION: A sulfate-resistant polymer-repairing mortar composition includes 80-85 weight% of granulated slag powder, 6-13 weight% of gypsum, 3-8 weight% of lime, normal cement, sodium sulfuric acid or potassium sulfuric acid, and air-cooled slag powder. The contents of the normal cement, the sodium sulfuric acid or the potassium sulfuric acid, and air-cooled slag powder are respectively more than 0 weight% and are less than or equal to 2 weight%. Sulfate-resistant polymer-repairing mortar includes 43-55 weight% of sulfate-resistant cement, 38-53 weight% of silica, reinforcing fiber, silicon-based antifoaming agent, redispersion acryl powder, and a wetting agent. The contents of the silicon-based antifoaming agent and the wetting agent are respectively more than 0 weight% and are less than or equal to 1 weight%. The content of the redispersion acryl powder is more than 0 weight% and is less than or equal to 3 weight%.