"Bleeding in fresh concrete refers to the process where free water in the mix is pushed upward to the surface due to the settlement of heavier solid particles such as cement and water. Some bleeding is normal but excessive bleeding can be problematic. The way you work that bleed water can affect the durability of your products."
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Bleeding is a type of isolation in the concrete, where the water of the concrete mixture to the top surface and the solids are deposited down because of the difference in the weights of the quality of the concrete components, can be expressed by the measurement of the amount of concrete (settlement), which is the amount of decrease in thickness or height Concrete Stroke In relation to its thickness or height, the cutter at the time of the casting, the bleeding stops at the beginning of the cohesion of the mixture.
"Bleeding in fresh concrete refers to the process where free water in the mix is pushed upward to the surface due to the settlement of heavier solid particles such as cement and water. Some bleeding is normal but excessive bleeding can be problematic. The way you work that bleed water can affect the durability of your products."
The paragraph above is found in the following link: