Our home builder poured our garage floor in June. At first, it was one uniform color. Now, it is very discolored. What would cause this, and will it eventually be one color as our builder states that it will? I am very skeptical that it will, especially since they cannot give me a timeframe. They just state that it will eventually all turn the same color. This does not seem right to me. I have never seen any concrete that looks like this.