YELLOW SOIL-FIBER COMPOSITION FOR CEMENT MORTAR ADMIXTURE, IMPROVING COMPRESSION STRENGTH AND BENDING STRENGTH SIMULTANEOUSLY, PREPARATION METHOD THEREOF AND CEMENT MORTAR USING THE COMPOSITION

摘要

PURPOSE: A yellow soil-fiber composition for a cement mortar admixture, its preparation method and a cement mortar using the composition are provided, to improve compression strength and bending strength and to reduce cost. CONSTITUTION: The yellow soil-fiber composition comprises 100 parts by weight of yellow soil, 1-15 parts by weight of rice straw, and 10-40 parts by weight of water. The method comprises the steps of adding yellow soil, rice straw and water to a mixer and stirring the mixture for about 60 sec; pouring the mixture into a mold and compressing it; calcining the molded one; and pulverizing the calcined mixture. Preferably the compression is carried out with a pressure of 50-500 kgf/cm2 and the calcination is carried out at a temperature of 400-1,200 deg.C for 30-60 min.