Filling Cracks in Concrete Driveway

I've tried the vinyl concrete in the past with less than stellar results. I'm thinking of using a more flexible filler such as silicone II caulk with a dusting of sand patted over the top for cosmetic purposes. I'll brush/vac away the excess after the caulk dries.
Does anyone have any good experiences with patching concrete driveway cracks, long term?
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mike wrote:

There is sealant for that(similar to Silicon II). My back yard parking pad has a crack about 1/4 in. wide which is filled with this stuff. It stays put for more than 3 yars now. Squeeze in as much as you can and smooth it out.
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and crappy repair mastic out of cracks. i'd rather just fill it for good. you could use a little extra hardner with the household bondo puddy. frame off your job and pour it fast to get the liquid settleing effect. =) gotta luv that bondo. i repaired cracks in my swimming pool deck and you can hardly see them any more.
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Pourcrete. A powder that you add water until it has the consistency of pancake batter. Pour it in the cracks. Don't make a lot at one time, as it hardens FAST.
Steve
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wrote:

I caulked the driveway cracks 5 years go, then the caulk split open so I consider it is a temporary fix. You may have better results if your concrete is more stable than mine.
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depending on the size of the crack. it got me looking at my dw and it has a tiny 1/4" crack. for that i'd leave it. if it was larger i'd use bondo cause it's going to be easier to get out w/chisel as opposed to caulk.
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Thanks for all the responses.
I have a feeling the failure of much of the original vinyl concrete patch was due to thermal expansion and contraction, so I'll give the flexible filler a go, but I'll be sure to keep these other ideas in queue as I also have a feeling that this will come up again sometime, unfortunately.
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