HammerDuck › Concrete
Concrete Work Built for Clay Soil, Not Against It
Cracked driveways and heaving patios in the CSRA are almost always a soil problem, not a concrete problem. Clay soil expands when wet and contracts hard when dry, and a contractor who doesn't account for that will give you a crack within two years. HammerDuck's concrete pros know how to prep for it.

Why This Matters in the South
Built for CSRA conditions, not a national template.
- Expansive clay soil is the #1 cause of driveway and slab cracking in this region
- Occasional hard freezes can still cause freeze-thaw damage on improperly cured concrete
- Poor drainage planning around slabs leads to water pooling against foundations in heavy summer rain
Pro Tips
A few things worth knowing before you hire.
Ask about sub-base prep before you ask about the concrete mix — the prep matters more here than the pour
Control joints (expansion joints) should be closer together in high-clay areas than a generic national spec calls for
Sealing concrete every 2-3 years matters more here due to humidity-driven moisture absorption
Now open across the CSRA
HammerDuck is open in the CSRA. Free for every Pro until December 1.
Homeowners: post your concrete project and let local concrete pros bid on it. Posting is free, always. Concrete pros: membership is free until December 1, 2026, with no card needed. After that, 30 free days before the first charge, or 60 as a Founding Contractor, who also locks in $20 a month for as long as the membership stays active and in good standing. Three founding spots per trade, CSRA-wide.
