Why most San Antonio concrete cracks early
Our soil is high-plasticity clay — it expands when wet, contracts when dry, and that movement breaks slabs poured directly on dirt. A driveway that lasts 30 years here has 4–6" of compacted base rock under it, #4 rebar on chairs (not wire mesh laying flat), correct slab thickness for the load, and saw-cut control joints at 8–10 ft intervals so cracks land where you can't see them. Skip any of those steps and the concrete lets you know within 2 years.

