Broom finished concrete is a popular choice for patios, driveways, sidewalks, and porches in North Texas. It offers a clean, textured surface that provides traction and looks great. But over time, even well-installed broom finished concrete can develop cracks. These cracks can be frustrating, especially if they show up shortly after installation.
Let’s break down why broom finished concrete cracks, what problems to look out for, and how you can prevent or repair these issues.
Why Does Broom Finished Concrete Crack?
Cracking in broom finished concrete can be caused by several factors—some natural, others related to installation and maintenance. Here’s what to watch for:
1. Improper Installation Techniques
- Poor subgrade prep: If the ground beneath the slab isn’t compacted or leveled properly, the concrete will shift and crack.
- No control joints: These are necessary to help concrete crack in a controlled way. Without them, cracks form randomly.
- Overworking the surface: Troweling too much before applying the broom finish can weaken the surface layer, causing early cracking.
“Even something as simple as finishing too soon or using too much water during the mix can ruin the integrity of a slab,” says Marcos, founder of Professional Brick & Stone Works. “We’ve seen it all—and fixed it all.”
2. Weather and Curing Conditions
- Rapid drying: Hot, dry, or windy weather can cause the surface to dry too fast, leading to shrinkage cracks.
- Cold snaps: In winter, freeze-thaw cycles can cause the concrete to expand and contract, resulting in cracks over time.
- Rain during curing: If it rains on fresh concrete, the surface finish may be compromised, leading to cracks and scaling.
3. Natural Concrete Behavior
- Shrinkage: As concrete cures and dries, it naturally shrinks. If that shrinkage is restrained by soil, walls, or other structures, cracks will appear.
- Settling: Over time, soil underneath may settle or shift, especially in areas with heavy clay content like parts of McKinney and Murphy.
4. Heavy Loads or Impact
- Driveway stress: Cars, trucks, or trailers can put excess weight on broom finished driveways, especially if the slab is too thin or lacks reinforcement.
- Improper thickness: Residential slabs should be at least 4 inches thick and reinforced with rebar or wire mesh.
5. Lack of Maintenance
- Unsealed concrete: Broom finished concrete is porous. Without sealing, moisture can get in and weaken the surface.
- Ignoring small cracks: Tiny hairline cracks may seem harmless but can grow wider with time and weather exposure.
Should You Worry About Hairline Cracks?
Not always. Hairline cracks are common, especially within the first year. However, if they start widening or spreading, it’s time to call in a concrete crack repair service for an inspection.
“In most cases, small cracks are cosmetic, but in some, they’re a sign of deeper issues. A professional inspection will give you peace of mind,” says Marcos.
How to Prevent Cracks in Broom Finished Concrete
Prevention starts with proper planning, expert installation, and regular care. Here are a few simple but effective steps:
- Hire a skilled contractor with experience in broom finish crack prevention
- Add control joints every 8 to 12 feet to manage natural movement
- Ensure proper base compaction before pouring concrete
- Avoid adding too much water to the concrete mix
- Use curing compounds or cover the slab to slow the drying process
- Seal the surface after 30 days to block moisture and stains
- Clean and inspect regularly, especially after harsh weather
Need Help Fixing or Maintaining Your Broom Finished Slab?
If you’re seeing cracks or surface damage in your broom finished concrete, don’t wait. The longer you leave it, the more expensive repairs can get.
Professional Brick & Stone Works has over 15 years of experience serving McKinney, Wylie, Murphy, and all across Collin County. Whether you need broom finished concrete repair, concrete overlay services, or want to seal your slab before winter hits, our team is here to help.
“We don’t just patch cracks—we find the cause and fix it for good,” says Marcos. “Our goal is to leave every client with concrete that looks great and lasts.”
Contact us today to schedule a slab crack inspection or get a quote from a broom finish concrete contractor near you. Your concrete deserves more than a quick fix—give it lasting protection.
More Information:
https://www.tdhca.state.tx.us/single-family/training/docs/14-TMCS.pdf
