What is the function of a concrete vibrator?

The function of a concrete vibrator is to remove air bubbles from fresh concrete. When concrete is poured, it often contains entrapped air pockets that can weaken the overall structure and lead to defects. The use of a concrete vibrator helps to consolidate the concrete mix by vibrating it, which allows the air bubbles to rise to the surface and escape. This process enhances the density and uniformity of the concrete, improving its strength and durability.

Smoothing the surface is achieved through finishing techniques rather than vibration. Curing refers to the process of maintaining adequate moisture, temperature, and time to allow the concrete to attain its desired strength, which is not a direct function of the vibrator. Lastly, hardening occurs as the concrete hydrates over time, and while vibration aids in achieving a better mix that can contribute to harder concrete, it does not directly cause the concrete to harden. Therefore, the primary role of the concrete vibrator is to eliminate air bubbles and ensure a well-compacted mix.