MORTAR COMPOSITION USING BETA-HEMIHYDRATE GYPSUM AND MORTAR USING THEREOF

摘要

The present invention relates to a mortar composition using β-hemihydrate gypsum, and mortar using the same. More particularly, the mortar composition comprises: β-hemihydrate gypsum which is an industry byproduct; a slag fine powder which can complement final strength; components for reducing dry shrinkage and preventing cracks, which include anhydrite and cement; and a water reducing agent and a retarding agent for adjusting construction performance and setting time. The mortar composition is environment-friendly, and has a short curing period, thereby having excellent cost-efficiency while securing a fixed strength.