On Tue, 29 Dec 2009 08:38:24 -0800 (PST), Joe wrote:

On Dec 29, 6:46Â*am, "Hustlin' Hank" wrote:
How do I fix this problem?

I have a concrete drive. One section of it (approx. 12' x 16') is
PERFECTLY level around the perimeter, but sags a little in the center,
which holds water. This means that when it rains it holds water in the
whole section. Yes, whoever installed it didn't do a very good job.

I thought about drilling a hole in hopes it would drain this section,
but I assume it would clog up in short order. I thought about cutting
out a trough to let the water escape, but think this would look tacky.
I don't want to go to the expense of replacing the section. Replacing
the section would be a different color and look like ****. The
driveway is about 200 ft long which would totally be out of my range
for replacing the whole drive way.

Got any suggestions?

TIA

Hank

In our area there is a specialist outfit called 'SlabJackers' who deal
with problems like yours by boring/cutting the slab and pumping
concrete under it under pressure. Check your Yellow Pages for a
similar firm and discuss the options with them.
It appears that the original pour was not done over a properly
compacted base, so from a practical standpoint it would make sense to
remove and redo it. Some research should give you the name of the
concrete supplier, and odds are that a repour would match perfectly
well after a year or two in the weather. In fact, after a month you
likely wouldn't be bothered by the slight difference that much as you
watch the rainwater going where it should.

Joe
What makes you think tha base was not properly compacted, vs the guy
operating the power trowel just not paying attention and working the
center low?????