Reading this title, I suppose many of you may burst in laughter.
“Are you kidding me? Is there any technique in repairing concrete?” Some readers would question.
 cracked concrete
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 concrete repair
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The answer is absolute yes. Although repairing concrete is common and plain work, it calls for techniques too. Regardless of them, you cannot do the repairing well. For the worse, you can even make yourself hurt. Generally speaking, the whole process of the repairing can be divided into the follow steps.
Safety is always the first step in the process of doing anything. Always wear eye protection, as concrete tends to crumble and the tiny pieces can cut your eyes, causing permanent damage. It is also recommended to wear gloves to prevent smashing your fingers or cutting your hands.
 wear gloves
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 do not forget your glasses
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After ensuring your safety, you can start the repairing formally, removing the damaged cement around the crack. Use a hammer and a large chisel to chip away the broken, crumbled and disintegrated concrete. You should have a somewhat round hole, about an inch (2.54 cm) in depth, after all the damaged concrete is removed.
The next step to repair concrete involves undercutting the edges of the area you have chipped away. This is done by widening the bottom of the hole, but leaving the top untouched. The result will be a hole with inside walls that slant inward as they go up.
Removing all the chipped concrete and debris from the hole is the next step in concrete crack repair. It is easiest to do this with an industrial vacuum, as you can be sure to get all the dust and small pebbles. Moisten the hole with water every couple hours for a full day.
It is now time to mix the concrete in two separate batches. The first batch is mixed a little thick, at a ratio of 3 parts cement to 1 part water, so that it resembles paste. The next batch is mixed slightly thinner than the first batch, but still thick enough that it can coat surfaces. Use the second batch to quickly coat the inside walls of the hole before it dries. Now fill in the hole with the first batch of cement.
Allow the cement to dry for a few hours. When the time has passed, cover the fixed areas with plastic wrap. Use a spray bottle to moisten the area a few times per day for a period of one week. After the week has passed you can remove the plastic wrap and the area should be as good as new. If there are large amounts of cracks in the concrete, it may be best to replace the whole concrete pad. You can use a jack hammer to break up all the concrete and cart it off in a wheelbarrow. Follow the instructions on the bag of concrete for laying a new pad.
Your blog is very interesting.
I like to zone out the entire area and remove the whole section even if some parts within that area aren’t broken. I think it looks neater to have a nice uniform square of fresh concrete where the repair took place.
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