COMPOSITION FOR WHITE-COLORED CONCRETE HAVING TITANIUM DIOXIDE-METAKAOLIN PIGMENT

A white color concrete composition including titanium dioxide-meta kaolin pigment is provided to homogeneously express color to overall portion of a concrete structure and to improve intensity of the structure with less amount of the pigment by forming the titanium dioxide-metal kaolin pigment through calcination and addition of the pigment to white cement. The white color concrete composition includes: 100wt. parts of white cement; and 2 to 20wt. parts of white pigment based on TiO2-metakaolin which was prepared by calcining a mixture of TiO2 and kaolin based mineral in a ratio by weight of 95:5 to 20:80 at 500 to 800deg.C then ground into powder with average particle diameter of 1 to 3 micrometers. The kaolin based mineral is selected from kaolinite and halloysite. The white cement comprises 150 to 400wt. parts of fine aggregate of which 85% of the aggregate passes through a sieve having 5mm mesh, and 150 to 400wt. parts of coarse aggregate of which 85% of the aggregate does not pass through the sieve having 5mm mesh.