CONSTRUCTION PLANK OF IMITATION STONE AND ITS MAKING METHOD USING FELDSPAR

摘要

A method for manufacturing an artificial stone board for building is provided to produce the artificial stone board that emits far infrared rays and anions, has increased bonding strength, and displays various color tones. A method for manufacturing artificial stone boards for building comprising 50-70wt.%of feldspar as a main material includes the steps of: charging 30-60wt.%of feldspar powder having a particle size of about 1-4 mm, 10-20wt.%of feldspar aggregate having a particle size of about 5-10 mm, 8-15wt.%of red elvan having a particle size of about 4-8 mm, 7-15wt.%of germanium ore powder having a particle size of 20 mesh and smaller, and 15-20wt.%of an inorganic solidifying agent having a particle size of about 4-8 mm into a mixer, and mixing the materials to obtain a mixture; charging 5-10wt%, based on the total weight of the mixture, of water into the mixer, mixing and kneading the admixture evenly, and applying more than 600 ton of force to a mold containing the kneaded material to obtain a molded artificial stone board; drying the molded artificial stone board in the shade having a temperature of 15-20 °C for about 2-4 days after demolding; and polishing the artificial stone board using an electric grinder. Further, the inorganic solidifying agent is selected from shellfish solidifying agent, eco cement, meta kaolin, white cement or high strength cement.