Although concrete is durable and rigid, it can crack when exposed to powerful outside forces. A crack in concrete flat work is defined by its cause, and you should be able to recognize the different types of fissures. This knowledge will help you determine the best way to resolve the issue before it worsens.

What Causes Concrete Cracks?

1. Excessive Weight

Concrete has a limit to the amount of weight it can withstand. Exceeding the limit will cause cracks, affecting the integrity of the structure. This is a common problem for concrete driveways, as heavy vehicles can place excessive weight on the surface every day.

2. Movement

Over time, the foundation may settle under concrete flat work, causing the material to match its slope. This will cause the surface to crack, as the ground is changing its support. Ground movement can also be caused by rogue growing tree roots, which can penetrate soil and concrete.

3. Thermal Stress

Concrete can expand and crack if its opposing surfaces are exposed to irregular temperatures. Heat causes materials to expand, and cooler climates cause them to contract. Constant fluctuations will weaken the concrete, causing it to crack and break. This is a common issue with outdoor structures, as strong afternoon rays rapidly heat the material, and the night will quickly cool it once the sun sets.

4. Shrinkage

All concrete mixtures contain water, and a hardening surface will shrink and crack if the liquid dries too quickly. Concrete can also experience shrinkage cracks if the poured mixture dries quickly on the top while the bottom remains wet. To prevent this, many contractors cover their projects with an awning or tent to ensure the material cures evenly.

If you’ve noticed any of these cracks in the concrete flat work around your property, contact the team at Central Pacific Specialty Contractors in Aiea, HI. These professionals have over 25 years of experience, and they’ll use their knowledge to accurately assess and remedy any crack. View their full list of services online, or call (808) 262-2527 to request an estimate.