YES! You Need Gravel Under Concrete: Here's Why and How Much
https://www.everything-about-concrete.com/gravel-under-concrete.html
WEBNov 14, 2023 · Choosing the right type of gravel—be it 3/4" crushed gravel, 1" minus, or another suitable option—is key to the performance and longevity of your concrete patio, slab, or driveway. How you install the gravel also matters, with thorough excavation, compaction, and leveling being integral steps.
DA: 40 PA: 12 MOZ Rank: 88