- Joined
- Apr 23, 2018
- Messages
- 6,557
I would never pour concrete on a hand-tamped pad. Too much investment in the mud, too much time in setup and finishing to risk it. Compaction should be done with a Rammax or Wacker in lifts of 4-8", depending on soil. Vibra-plates are for finishing asphalt or paver blocks, or can be used as a finish for concrete after being compacted and tuned up with a more reliable method. Compaction is everything in concrete work. It determines the future of your project. The exception is "gravel" which is for drainage and compacts easily with a vibra-plate, but aggregate base and fill need to be compacted right.