When To Prepare Joints To Ensure Expansion Does Not Crack The Concrete?

The ideal time to install joints for expansion of the concrete is when the mold is being prepared and the liquefied concrete is being poured into the same. This will give you complete freedom to assess your requirements and anticipate the extent of expansion.

If you are pouring concrete in the driveway, you will have to provide for the maximum expansion possible because the concrete will be exposed to maximum heat, light and moisture. Unless you have a covered driveway, which are very rare, you will have no option but to determine all these points well advance.

Well, what if you have not planned for the expansion joints in advance? Or, what if you find that the joints that you have determined are not sufficient? In such a scenario, you will have no option but to repair the concrete by going in for joints at a later date.

There will be many professionals who will tell you that this is next to impossible. There will be many others who will say that this is going to be very expensive affair. Well, it certainly is going to involve more effort as compared to placing the expansion joints when setting the concrete.

However, it is a much better option than allowing the concrete to crack. You never know how and where the crack will occur. There is a possibility that the concrete may crack right down the middle. Or, it may crack across diagonally making it impossible for you to use the surface.

Rather than allowing the entire effort to go waste, it makes sense to modify the concrete slab and manually cut in a joint. If you are thinking of using a hammer and a chisel and banging the concrete to create the joint, you will have to do so for very long time. The smartest option is to make use of mechanized tools specifically designed for this purpose.

You will need high speed saws that will cut through the surface and will help you create the joint. Remember, you will have to go right down to the base of the slab. You cannot just focus on the top and hope that cracking will not take place.

When you are tinkering with a concrete, you should pay extra attention to the finish of the job. Even the slightest deficiency in service is going to result in a crack that will allow moisture and heat to enter the slab and destroy it from inside.

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