
Concrete Driveways in Conrad
JLB pours residential driveways across Conrad on a subgrade prepped for Grundy County's deep, water-holding clay, using an air-entrained mix in the 5-7% range so the slab rides out the roughly 100-120 freeze-thaw cycles a central-Iowa winter delivers without spalling. On the black-dirt ground that defines this town, that drainage-conscious base prep is what keeps a new drive from heaving where the clay stays wet long after a rain.
- Air-entrained mixes (5-7%) built to survive 100-120 freeze-thaw cycles a winter
- Proper subgrade preparation over Des Moines Lobe glacial till
- JLB's own in-house crew — no subcontractors
- Free inspection plus the JLB transferable warranty









