Understanding Pneumatic Vibrators for Concrete Applications

22 February 2021
 Categories: , Blog


As you pour concrete in do-it-yourself projects, air bubbles develop and remain trapped within the concrete mixture. The bubbles form honeycomb-like spaces and cavities between the cement particles as the concrete starts to cure. If you leave them unattended, these cavities affect the structural integrity of your cement slabs. They will not last as long as they should. Thankfully, pneumatic shaft vibrators can help you remove these air bubbles and prevent the cavities from cropping up when the slab cures. The vibrators shake the cement particles and force the air bubbles out of the material. They leave the fresh slab more compact and well levelled as it starts to cure. Here is a must-read for anyone that wants to learn more about pneumatic vibrators for concrete applications.

What are the applicable uses? 

Pneumatic vibrators are versatile and usable for different tasks. You can use them to stabilise and compact fresh concrete in slabs, driveways, stairways and stem walls. They also come in handy for compacting footings and foundations. Generally, the vibrators draw their versatility from being portable. You can carry them to different sections of the site and compact your fresh concrete. 

What features should you look for? 

When choosing a pneumatic shaft vibrator, pay attention to the features that will make it ideal for your concrete applications. Start by going for a quick-release package designed to enhance efficiency and ease when using the vibrator. Usually, the quick release feature has a single-pin locking mechanism attached to an adapter and a motor. This mechanism allows you to remove the housing assembly and the core quickly when storing the vibrator. It also lets you change the head size and the shaft length for better reach into the concrete. 

It would also help to go for a cushioned fibreglass frame, which is great for general handling. It is also easy to clean and get the equipment ready for the next concreting project. Lastly, you also need to go for high-amplitude heads to maximise the vibrator's operational radius. 

What are the different kinds of vibrators?

The magnitude of your concreting project determines the pneumatic shaft vibrator you choose. Site conditions can also dictate or limit the vibrators you can use. For instance, a lack of power supply on the site will require you to go for internal gas vibrators. Screed pneumatic vibrators are great for applications that require the operator to stand upright when compacting the concrete. Lastly, external pneumatic vibrators are your go-to option for vertically inclined areas such as walls and pillars.