The rules of successfully spraying concrete

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The rules of successfully spraying concrete

The building and construction industry has a massive demand for sprayed concrete services. Ours is a business that offers this service and also strives to produce marvellous results. Whether it is a new installation or a repair, we can provide a great solution.

Anyone unfamiliar with the spraying process should know that it’s exactly what the name implies. We spray the concrete onto a construction point or surface. This is instead of using the standard methods.

There’s one critical prerequisite for acquiring superior results when spraying concrete. This is using the right mix. One other vital element is the proper application technique. It’s essential to ensure the adhesion. Other rules for sprayed concrete also exist. You should follow them as well if you want things to go smoothly.


One such rule is to cleanse the surface prior to spraying. During underground projects, you’ll often need to prepare the substrate. Your first move here must be to assess the risk of loose mediums and falling rock. If you find anything that’s loose, you’ll have to remove it. You need to clean the substrate of dust with the aid of air, water, or a mixture of the two. Make sure the surface is dry before you spray the concrete.

Keeping your distance

Another rule would be to keep a distance of 1 to 2m between the substrate and nozzle. There is an impact force that ensures the concrete’s adhesion to the surface. The space between the substrate and nozzle is what determines said force.

When the distance isn’t long enough, there’s always a decent amount of rebound. This will ruin the finish because it makes it harder for the material to adhere to the surface.

Sometimes, the distance shall be too long. When it is, the impact force won’t have enough power. You won’t achieve sufficient compaction and adhesion.

At Churchill Concrete Technology, we use our sprayed concrete service to tackle the more challenging projects. It proves incredibly useful when working on free-form walls and surfaces. In these instances, regular laying procedures would not be appropriate.

If you would like to know more, please get in touch with us.