When using an external concrete vibrator, the head of the machine should be submerged in the concrete for 10 seconds. The rate of vibration should be between one and three inches per second, but one inch per second is usually the best rate. When vibrating, make sure to overlap the previous radius of action by about four inches. This will ensure even compaction and prevent air bubbles from forming.
Another factor to consider when using an external concrete vibrator is the formwork. Vibration is particularly useful for formwork, because it helps achieve a smooth finish and the best consolidation. Unlike internal vibration, an external concrete vibrator can be easily moved around the formwork, so it's easy to maneuver it from one location to another.
The benefits of an external concrete vibrator include its simple structure, low maintenance requirements, and durability. It requires only electrical power and no human intervention. It can be used to effectively compact concrete pavements with a compaction depth of less than 20 cm. Additionally, an external concrete vibrator can be used to vibrate concrete forms. An external concrete vibrator consists of an eccentric weight disc and a vibration motor. A vibrating head has several diameters and is available with rubber or steel tips.
For precision consolidation, the external concrete vibrator AR 36 has a wide range of features and benefits. It produces smooth, level concrete surfaces with low slump. It also disperses large aggregates and ensures that cement fines are evenly distributed. Using an external concrete vibrator effectively will help create stronger, smoother concrete.