Bricks, Masonry, Asphalt and Concrete - Reinforced concrete for driveway

I received a bid for a replacement concrete driveway. I live in North Carolina. The bid states that the new drive will be 4" with no reinforcement bar or wire. When I asked about this, I was told that there would be fiber reinforcement in the concrete. I guess this to keep the cost down. Is this adequate and does it meet construction standards?

Fiber mesh does not increase the strength of a slab!!!

It only helps to control microcracking.

If it was me, I would use the fiber mesh AND wire (6x6) in the bottom half of the slab. - Its cheap.

If your contractor did not plan on sawing control joints (late the same day or early the next day), look for a different contractor since he does not know how to do it right. All concrete will shrink and crack, no matter where you are, so you should control the crack locations and make it look good..

I have no idea where you are in NC, but if you are where you get freezing, you should probably have air entrained concrete. Around here they will probably not deliver concrete for a driveway unless it is 4000 psi and air entrained.

It's just me, but....

Everything said prior, and

I'd want at least a 6" driveway. Esp if you have a car parked on just one side, or if you have a heavy vehicle.

I saw a bunch in my last neighborhood, slab was 4" or so, but it cracked due to the weight being mostly on one side of the drive.

Control joints and some reinforcing prob would have saved some of them...that and the right base mat'l.

Thanks for the help. I will look into the wire reinforcement.

part of any driveway's the base mtl, compaction, grading, placing, finishing, & jnt patterns,,, or - you could have 2" of conc & still have a great d/w,,, but, practically, around c-lotte, 4" is good,,, wire only helps during conc's 'green' stage,,, after that, it holds the broken pieces together :-) true ! & wire/steel should be plac'd 1/2way vertically in the slab according to all engineering practices & amer conc paving & amer conc institute manuals.

if a slab crks, its usually due to an inadequate jnt pattern OR the jnt's weren't cut/sawed at the right time, not just because its only 4",,, in c-lotte, i'd order 3,500# conc's w/5" slump.