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Allgood Construction Wednesday, November 16th, 2022

What causes concrete sidewalks to crack, sink and heave?

When it comes to materials, concrete is quite durable. This durability makes it the perfect material for parking concrete sidewalks and curbs. Although durable, concrete is not invincible. Over time, many problems can cause deterioration of concrete. When this becomes the case, it begins to cause problems for the owner. In this post, we’ll look at how concrete sidewalks deteriorate over time, detail the types of damage that can occur, and explain the dangers of leaving damaged concrete unrepaired with sidewalk repair kits.

Few materials are unaffected by the elements, and concrete is no exception. When the sun hits the concrete and the night air cools the concrete, the material goes through a cycle of expansion and contraction. These effects are small, but over time they can cause small cracks in the concrete. This is exacerbated and the cracks expand as rain, dew, and other sources of moisture enter these cracks and freeze. The same cycle can cause weaknesses in the concrete base and cause the concrete to sink. A common cause of concrete cracks, sagging, and uplift is inadequate soil compaction.

What Causes Concrete Cracks?

Apart from the elements, there are several other factors that can cause the concrete to crack. The first is stress on the material. Concrete is tough, but it has weight restrictions. Sidewalk and curb concrete, unlike workshop concrete, is not designed to support that much weight. This is usually not a problem as only people generally drive your repairing concrete sidewalk.

The second factor, improper installation, can cause premature cracks in concrete. This is something you can’t control after the fact. Therefore, if you hire a concrete company to install curbs or sidewalks, make sure they are eligible. Good concrete workers know how to mix concrete properly so that it doesn’t weaken prematurely.

What causes the concrete to sink?

The cause of concrete sinking is weathering that deteriorates the base. When the concrete base becomes weak, it becomes unstable. After that, the concrete becomes too heavy and the pavement begins to sink. There are also some problems with the underlying soil that can cause the concrete to sink. Concrete must be compressed before installation. Soil that is not compacted will sink under the weight of concrete. If this happens after the concrete has hardened, the concrete itself will sink. Again, choosing a qualified installer is the key to ensuring that concrete lasts as long as possible.

What causes the concrete to heave?

As the ground below moves, the concrete rises. As already mentioned, one of the most common reasons is soil changes due to freezing and thawing. When the ground beneath the concrete gets wet and freezes, it expands upwards, causing buoyancy. Clay soils in particular can swell because they absorb too much water. In such cases, uplift can occur even in climates that rarely drop below freezing, such as California. The reverse can also occur. If the soil dries too much, it will move down and the concrete will rise in that direction. Many other things, such as the following, can also cause uplift. The roots of dead trees collapse, leaving gaps that have collapsed the ground.


When should you consider repairing your sidewalk?

If you already have specific damage, it’s time to call someone for repair before it gets worse or injured. If you want to start a new concrete project and maximize the chances of minimizing future damage, a team of concrete sidewalk repair contractors will take all the necessary steps to ensure a high quality and long lasting installation. Is required. In either case, you can call the team of experts at AllGoodConstructionServices. Contact us so that our experienced concrete department can assist you in your next masonry project in optimum repair cost.

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