Characteristics:

The process of concrete vacuum pump is aspirateing free water from concrete to reduce water-ash ratio of the concrete and speed up the construction progress, which improves the concrete tightness as well as early stage strength of the concrete greatly.

After the vacuum pump surface treatment, the concrete strength is improved by 20-60%, the freezing resistance is improved by 2-2.5 times, the wearable resistance is improved by 1-2 times, the binding force of reinforcing bar is improved by 20-25%, and the cement consumption is cut by approx. 25%.