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The Complete Guide to Concrete Cracks and How to Repair Them

Nov 24

Cracks in concrete driveways, sidewalks, patios, and foundations are not only bad for the aesthetics of the property, but also represent a weakness in the structure that can allow water and other material to seep into your property and cause serious structural damage.

As time goes by and these problems worsen, they can cost you thousands to repair.

Repairing cracks in concrete surfaces and structures is not an easy or cheap task. And if left unchecked it can lead to more expensive repairs down the line. However there's good news! You don't have to put up with cracked concrete anymore. With the help of some professionals you can refresh your crumbling concrete in no time.

What are concrete cracks, what causes them, what are the consequences of concrete cracks?

As we all know, concrete is a composite material that is made of aggregate and cement. Concrete is the most widely used construction material in the world. Like most other building materials, concrete can be exposed to many environmental stresses such as water, chemicals and traffic which may result in cracks.

There are different types of concrete cracks: including pinhole-sized surface cracks that can be caused by air entrapment when the concrete mix dries; shrinkage; and thermal stress; deep spalling due to a lack of curing time or a severe freeze-thaw cycle; corrosion of reinforcing steel from moisture penetration through joints or coverings over steel structures There are also hairline cracks on corners or along edges due to shrinkage during the drying process.

Different Types of Concrete Cracks

Different types of concrete cracks can be distinguished by their size and appearance. Smaller cracks are called micro-cracks and they usually appear as diagonal cuts on the surface of the concrete. These cracks usually develop due to temperature changes or general wear and tear. Larger cracks, on the other hand, are called macro-cracks and they vary in length, width, depth and number of joints. They can be caused by different factors such as: frost heave (more common in colder climates), construction defects or ground movement (more common in areas close to rivers).

Certain types of concrete crack repairs include: epoxy injection, steel rods insertion, post tension cables installation etc. Foundation repair specialists may use other types of methods. Consider Buffalo Foundation Repair to do the job!

Buffalo Foundation Repair
200 John James Audubon Pkwy #301
Buffalo, NY 14228, United States
(716) 267-1776

What are the causes of cracks in concrete surfaces?

The causes of cracks in concrete surfaces include:

  • Expansion and contraction of the concrete due to temperature and other factors.

  • The use of aggregate that is too small or too large.

  • Poor workmanship, such as not placing rebar properly, which can lead to cracks in the concrete.

  • Chemical reactions that can cause chemical expansion or shrinkage.

What are some ways to avoid cracks in concrete?

Concrete is pretty durable, but it will encounter damage from time to time due to age and regular wear and tear. You can help protect it by your concrete surfaces by:

  • Using a pressure washer to remove dirt and debris

  • Applying an anti-skid coating to the surface

  • Filling in cracks and crevices with a water and sand mix

  • Applying an anti-graffiti coating to the surface

  • Applying a high quality sealant to the surface

How can cracks in concrete be repaired

Luckily, there are ways to repair cracks in concrete that work and last for years. The following methods will help you learn how to repair cracks in concrete:

Crack injection: When a crack is less than 10 inches deep and less than 3 inches wide, the best way to fix them is by injecting a sealant into it.

Epoxy injection: Epoxy injections work the same way as the crack injections do but they are more expensive and last longer.

Patching: Patching is a more time consuming process but it's also more affordable than epoxy injections.

What is the cost of a concrete crack repair?

A concrete crack repair is expensive. The average cost for a small crack is around $10,000. It will depend on the size of the crack and the contractor you hire. A large section can be as high as $100,000.

Minor cracks may be repaired on your own if you are an experienced do it yourselfer.

What is the cost of a concrete crack repair?

A concrete crack repair is expensive. The average cost for a small crack is around $1,000. It will depend on the size of the crack and the contractor you hire. A large section of a concrete basement can be as high as $25,000.

What should I do when there is a crack in my concrete surface?

Cracks in concrete surfaces can compromise the strength and durability of your property. This can lead to costly repairs and replacement in the future. Try to prevent them as much as you can.

Don’t wait for cracks to grow and become bigger problems. You may be able to do small repairs on your own, but in most cases you will have to depend on the expertise of a professional to do the job right.