Concrete thickness for truck
Opinions sought: I want to add a pad beside my house 12x20' I want to avoid all the prep work (sub base, gravel, tamping and hauling away dirt... etc.). It is now a 50yr old normal lawn with n...
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For the most part, I agree with the posts about sub prep for the slab, and likely the OP doesn't know what he has for soil conditions, but barring expansive clay or excessive moisture where the drive pad will go, a 4" residential drive pad will survive just just fine on graded and compacted native materials without a base course.
If care is taken to place mesh correctly or use fiber reinforce concrete with tie bars at the contraction joint (only 1 transverse joint needed in a 12x20 slab) I wouldn't expect issues.
But to the OP, don't expect to back the mixer up into the lawn, dump a load of concrete and think it will be fine. You need to do it properly or it won't last.
Edit
My bad OP never came back.
If care is taken to place mesh correctly or use fiber reinforce concrete with tie bars at the contraction joint (only 1 transverse joint needed in a 12x20 slab) I wouldn't expect issues.
But to the OP, don't expect to back the mixer up into the lawn, dump a load of concrete and think it will be fine. You need to do it properly or it won't last.
Edit
My bad OP never came back.
