BINDER OF GROUT MATERIAL AND GROUT MATERIAL FOR SAFE USING THE SAME, MANUFACTURING METHOD THEREOF

PURPOSE: An anti-theft grout material composition is provided to offer excellent mobility, material separation resistance, shrinkage-reducing capability, shock resistance, and fire resistance by containing a binder of a grout material which uses blast furnace slag fine powder and highly pulverized limestone powder, a steel fiber, and an organic fiber. CONSTITUTION: A binder of a grout material contains 10-50 wt% of blast furnace slag fine powder, 10-30 wt% of highly pulverized limestone powder, and 40-60 wt% of regular Portland cement. The fineness of the blast furnace slag fine powder is 4,000-6,000 cm^2/g, the fineness of the highly pulverized limestone powder is 6,000-12,000 cm^2/g, and the density of the highly pulverized limestone powder is 2.6-2.7 g/cm^3. An anti-theft grout material composition contains the binder of the grout material and fine aggregate in a weight ratio of 1:0.9-1.1. The anti-theft grout material composition additionally contains a steel fiber and an organic fiber.