Too much entrained air will have major detrimental consequences on the concrete's performance, such as loss of strength and stickiness during finishing. Air entrainment should not be employed in steel troweled interior concrete, especially machine troweled interior concrete. The steel used for interior flooring materials is very thin and would get damaged if too much air were incorporated. The best method for determining whether or not your concrete needs to be air-entrained is with a concrete testing kit. These kits contain instruments that are used to measure various properties of fresh and hardened concrete. The tests performed by these instruments help determine how much air is present in the concrete and what type of reinforcement is needed based on your project requirements. If you decide to air-entrain your concrete, there are several methods available. The two most common methods are dry-blending and wet-blending. Dry-blending involves the use of an air-entraining additive that is mixed into the cement mix before it is poured. This allows for better control of the amount of air introduced into the concrete. Wet-blending requires the addition of water to the cement mix before it is poured to create a slurry that can be stirred into place. With this method, less attention needs to be paid to ensuring that enough air-entraining additive is added to the concrete.