How Do You Stick New Concrete To Old Concrete?


It doesn’t matter if someone wants to fail in a small crack or build a whole layer of concrete over a layer of concrete that already exists. This procedure is not that straight forward unless you follow all the appropriate instructions. First of all, you will have to clean up in the old concrete with a healthy wash. Then you will be able to build another layer of new concrete on top of it.

In this article, we are going to discuss how do you stick new concrete to old concrete.

So, keep on reading to find out more information below about concrete Auckland!

Step 1:

First of all, you will have to clean the old concrete layer to remove any dust particles on top of it. Ensure that you also move around the furniture in that area to remove the debris standard from the site adequately.

Step 2:

You will need muriatic acid as it is a strong cleaner that can wipe away any kind of dirt no matter how sticky it is to the surface. You will have to follow a specific measurement ratio when you make a solution for the cleanup process. You will have to add one and a half liters of water in one cup of muriatic acid in a bucket to create an effective solution for cleaning purposes.

Step 3:

The next step is to both the effective cleaning solution you have created on top of the old concrete. Make sure that you are evenly spreading this mixture on top of the concrete. Ensure that this mixture does not come in contact with your skin because it can be harmful to you. If such a thing happens, then make sure that you didn’t want that area with cold water as early as possible.

Step 4:

Now let this acid wash form sit on top of all your countries for at least 15 minutes so that it can lift all the dirt and oil from the surface.

Step 5:

Now you will have to clean that old can treat the area with a pressure washer. It would be best if you used a pressure washer for this purpose because it is an acid mixture, and you do not want to get your skin come in contact with that mixture. If you do not have a pressure washer, then do not worry; you can rent one.

Step six:

Now you have to make water and glue in equal quantity, make a slurry in a bucket. Add dry cement to this mixture, and make sure you are wearing a mask. Make sure that this mixture is covered with a lid so that it does not go wrong. Make the old concrete wet and make a new batch of concrete. Now the gentle brush is a thin layer of this mixture on your substantial old area and other concrete on top of the old concrete.

Now you have done it, all you need to do now is to wait for 12 hours to dry properly.