To make a concrete mix, we need aggregate, cement, and water. Usually Portland cement (has gray color) is used. While for decorations white cement is used.
White cement is Ordinary Portland Cement, its Fe2O3 content is very low to give white color, it is expensive and no need to use in reinforced concrete....
One can try to use this type of cement but there is no advantage to use more expensive material when the more cheap type is available. Its uses are limit to decorative finishing.