Thousands of air bubbles are caught in freshly poured concrete, especially low-slump concrete or another type of concrete with a less fluid mix. If the concrete were to settle on its own, the air pockets would create honeycombed, unstable areas.
Use a concrete vibrator on the freshly poured mixture. You may get rid of the majority of the air bubbles and speed up the consolidation process so that the concrete is stronger and more uniform throughout.
WHAT ROLE DOES A CONCRETE VIBRATOR HAVE IN THE PROCESS?
Concrete vibrators come in various designs, each with its own unique function. Below are the most prevalent varieties and some recommendations on how to use them effectively:
In-form vibrators:
Formwork vibrators are affixed to the exterior of your form at regular intervals, usually every six feet, and are driven by pressurized air or electricity. While working with precast concrete cutting machines, they are the preferred method of vibration.
Vibrators on the surface:
In spite of their name, surface vibrators (also known as "jumpers") only act on the surface of your pour and are therefore less effective for pours deeper than half a foot. However, surface vibrators are effective tools for producing a pour with a notably smooth surface, which is especially important for aesthetic purposes.
The internal shakers:
For concrete, internal vibrators are by far the most common method of vibration. Most commonly, internal vibrators are powered by air or electricity and are intended to be used by a single, properly trained operator. To remove trapped air bubbles, the basic procedure entails a rapid insertion followed by a gentle withdrawal.
When vibrating concrete, how long do you need to do it?
Between five and fifteen seconds is the average time it takes to vibrate concrete. If bubbles remain after removing the vibrator from the concrete, simply repeat the operation until the bubbles disappear.
DO WE REALLY NEED TO VIBRATE THE CEMENT?
Almost often, it is advised to use a vibration machine to strengthen your concrete. In some cases, however, vibration of the concrete is mandated by local building codes and cannot be avoided. Check with your local building department to ensure that your decision not to vibrate the concrete will not result in a fine.
MSS Engineering: Simplifying Your Concrete and Cement Projects
Having the proper concrete and cement vibrators is essential for the success of any concrete pouring project. For this reason, MSS Engineering stocks a comprehensive inventory of concrete vibration tools. We understand that the happiness of our clients is essential to the success of our business.
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