Ah, finally something I know about. LMAO
White Portland cement and Gray Portland cement are the same. As long as they are both the same type. Type 1, type 2, type 1/2, or type 3 (fast set). White is more expensive because they have to use less available resources to refine it. You will find white portland at your local contractor supply house or where they sell blocks, bricks and pavers.
Any more concrete questions, give me a shout.
Jim
elite concrete co.elite concrete co.