Replies

1. 
   Guest_ | Jul 15, 1999 05:58pm | #1

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   Were any control joints provided?

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   Guest_ | Jul 15, 1999 06:29pm | #2

   *Please give more details. Where are the cracks? How big are they. Is there differential settling on each side? That fibermesh is a joke - don't waste your money on the next one.I would guess that 80% of residential concrete is placed improperly so cracks don't surprise me.-Rob

2. 
   DJ_JONES | Jul 15, 1999 07:21pm | #3

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   Yes-control joints were cut in roughly 10 ft. sections on the turnaround and drive. This crack runs diagonally from an inside radius that turns into the garage, across the turnaround to the outside edge and was turned at a control joint.It didn't cross any of the control joints. At this point there isn't any differential settling and it is about 1/16" at it's widest. thanks for replying.

1. 
   G.LaLonde | Jul 16, 1999 12:15am | #4

   *D.J. If you have control joints no more than 10' apart on a free floating slab, there is no reason to have cracks anywhere but in the joints. The most common reason for a problem like yours is that the mix was watered down too much and the thickness of the slab was too thin especially where it cracked. By the way, there is nothing wrong with fibermesh concrete if it is properly mixed. We do a lot of concrete pouring for state and local municipal jobs and attend seminars regularly that are conducted by government engineers and engineers from the concrete associations. They sing it's praises and I agree with them based on our experience. We have never had any problems with a job using fibermesh. It is certainly perfectly suitable for a driveway job like yours.

3. 
   DJ_JONES | Jul 16, 1999 01:26am | #5

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   Does anyone have any advice or comment on acceptability of cracks in a fairly new aggregate concrete drive. Buyer is fairly irate over what I consider to be normal cracking in the drive.This was a spec house(my first)so I have an incentive to keep this guy happy but at the same time most driveways I've been associated with will crack and usually within 6 months. So I guess the question is as much about industry standards and what constitutes a defect. This was fiber mesh poured over 1 1/2 in. & 3/4 in. gravel. My concrete sub says this is normal and isn't getting too excited about it. Any comment would be apreciated.

4. 
   Guest_ | Jul 16, 1999 01:26am | #6

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   Was the concrete cured properly? It should have been kept cool and moist for at least the first week to prevent flash cureing. Sounds like a possible "float it and forget it" job. If it was placed in hot, dry weather and not cured as above, it is garanteed to crack- fiber or not.