Where must external vibration systems be mounted for effective operation?

For effective operation, external vibration systems should be mounted just below poured concrete surfaces. This positioning allows the vibrations to efficiently penetrate the concrete, enhancing the compaction and settling of materials within the structure. It is crucial because concrete structures can sometimes trap air pockets or prevent proper material alignment; the vibrations help mitigate these issues by ensuring a more uniform distribution of the concrete and its constituents.

Mounting the system in this manner enhances the performance of the concrete mix, promoting better bonding and reducing the likelihood of defects such as cracks or weak spots. It's designed to optimize the physical properties of the concrete as it cures, leading to a more robust and durable final product. The effectiveness of the vibration is significantly diminished if the system is placed in less ideal locations, like above mixing chambers or far from the concrete placement area.