driveway erosion where it meets concrete garage slab....how to repair?


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Old 09-07-16, 04:42 PM
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driveway erosion where it meets concrete garage slab....how to repair?

Hello-

The driveway along my in-law's home is starting to collapse in a small area where the driveway meets the concrete slab which is the floor of their garage. I noticed that a few of her neighbors have the same problem. I assume water over the years has eroded away the soil in that particular area but how do I fix this? It's not getting any worse, and I double checked that the gutters are all draining away from the house.

Anyway, she wants it fixed. I'm not sure where to begin with it.

Thanks.


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Old 09-08-16, 05:06 AM
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It could be water eroding away the soil underneath. It also could be that the back filled soil at the edge of the garage footer was not properly compacted and over time it's settling. Or, it could be a combination of both.

I would make saw cuts to cut that corner of asphalt free and remove it. Maybe what you see underneath will give you some clue as to the problem. Then thoroughly compact the soil in that area and add layers of compacted stone/gravel until you get up to the grade needed for doing an asphalt or concrete patch.
 
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Old 09-08-16, 08:42 AM
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Thanks. 2 questions please:

1) How would you cut that corner piece out? I mean with what kind of saw and or blade?

2) If I wanted to hire someone to do it, what kind of tradesman would do that kind of job?
 
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Old 09-08-16, 09:15 AM
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1. I would use a circular saw with a diamond blade. You could also use a abrasive carbide blade and might get the cuts done before the blade wore down and became too small.

2. A general handyman, contractor or mason could do the job. The important part is finding someone that will do the proper filling and compaction underneath.
 
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Old 09-08-16, 09:16 AM
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A masonry blade on a skil saw would work or you could use a chisel or hatchet [as a wide chisel] to cut out a section.

Not sure if you could find an asphalt guy willing to take on that small of a job. Some handymen could handle it.
 
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Old 09-08-16, 01:56 PM
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I agree with Marksr and PD. But also, after you compact it with crushed stone , fill with a cold patch, then use some backer rod between the drive and the garage. Stuff the backer rod into the separation between the two surfaces to about a 1/4 inch or so. Then pour in black top sealer or crack filler. Then seal the whole driveway as usual.

PS... If I were doing it I would use a cold chisel.
 
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Old 09-09-16, 02:40 AM
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All through Norm201...... Thanks for the advice!
 
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Old 09-09-16, 04:24 AM
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Send a pic of the finished repair.

I've got a similar problem at the end of my drive where the blacktop meets the sidewalk. Because of the location and the type of traffic, I'm unsure if a repair will do any good.
 
 

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