Asphalt Driveway Repair query

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floydbloke

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#198091 26-Jun-2016 13:00

Please does anyone have experience with getting an asphalt driveway repaired (or done it yourself) that you can share.

Our shared R-O-W is in need of some pothole repairs.

To date we have got one quote which consist of ripping up the whole surface and resealing it. Apparently the whole lot is deteriorated and needs doing. Sound fair enough but it came in at $4,800 which seems an awful lot of money for what it is. In saying that, I have no idea what's really involved and what sort of machinery they need to bring with them etc. Their quote states an area of 23 square metres, my maths says it's about 18.

I will try and get some other quotes, keen to hear if anyone has got someone they can recommend in the north Wellington/Porirua area.

Alternatively, I'm wondering if I could patch it up with some of this stuff, $40 a bag from Mitre10.

Has anyone used this with any success? Would it be more effective if I was to cut away some of the jagged edges and make it an even rectangular cavity.

Sometimes I use big words I don't always fully understand in an effort to make myself sound more photosynthesis.

mattwnz

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#1580504 26-Jun-2016 14:14

You should make sure you see some of their previous jobs, because here is both good and bad jobs. Some of have seen they didn't compact it properly, and it becomes all crumbly after a short amount of time. Resurfacing the dive in concrete by a company who does them, may end up being cheaper though, but concrete can crack and tilt over time if not well done.

Aredwood

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#1580542 26-Jun-2016 15:56

If you are going to reseal it. Consider if any of the underground services need replacing or upgrading. Would be a good time to install ducting for UFB if needed.

pctek

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#1580568 26-Jun-2016 17:03

You can give the DIY a go but it probably won't last long i=f there is lot's of traffic.

Better to cut it out and start over.

Having said that I paid $7200 for 208sqm. Your quote seems rather high.

Amosnz

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#1580598 26-Jun-2016 17:30

We got quotes asphalt and concrete quotes when we were looking at sealing our 80sqm driveway. I was expecting the asphalt to be significantly cheaper than concrete however it came out about the same.

The person quoting the asphalt said that under 50sq/m concrete is cheaper, but over 150sq/m asphalt becomes cheaper.

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1eStar

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#1580611 26-Jun-2016 18:13

The reason it's failing in those areas will be either because of insufficient foundation strength (gravel underneath not thick enough), or drainage problems leading to water getting in to the foundation.

The usual repair is to cut a tidy edge, digout any dirty looking material then compact back in with a plate compactor, then repair asphalt. You can use the cold mix emulsion you have pictured, but is not quite as good as hotmix. Just make it a bit thicker.

I see a patch already done.

Absolute minimum thickness of seal would be 30mm, but I'd aim for at least 50mm. About 150mm of metal should be underneath if you want a reasonable job.

oxnsox

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#1580635 26-Jun-2016 18:20

As 1eStar above.

Also the sqare patch repair (which looks sound) appears to be a finer mix.

Out of interest the failed area is it uphill or downhill of the manhole service?
Also does water sit, pool in the failed area when/after rain?

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mdf

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#1580636 26-Jun-2016 18:26

I've found the cold mix to not work nearly as well as the hot mix. It's okay for patching but I wouldn't do any serious area with it. The bag will also likely say you can compact it with a fencepost or driving over it. You will get a much better result if you ignore this and hire a plate compactor.

floydbloke

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#1580677 26-Jun-2016 19:59

Thank you everyone, taking all advice on board

oxnsox: As 1eStar above.

Also the sqare patch repair (which looks sound) appears to be a finer mix.

Out of interest the failed area is it uphill or downhill of the manhole service?
Also does water sit, pool in the failed area when/after rain?

Slightly uphill I think.

Water doesn't sit or pool, but a lot of water traverses the are. Out of the picture, just to the left, the next door neighbours 'garden drain' spills out onto it, which carries on long after it has stopped raining, and it flows diagonally across into a stormwaterdrain, just out of the picture on the right.

Sometimes I use big words I don't always fully understand in an effort to make myself sound more photosynthesis.

oxnsox

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#1580698 26-Jun-2016 21:44

Thanks for the further explanation. As 1eStar says it looks like the failed area was overly wet when it was constructed, or has become so afterwards.

However you proceed concrete/asphalt make sure you dig out all the bad area before back filling and compacting. And then applying the top concrete/asphalt finish.
A fast fix of just redoing the top surface of the failed area won't be a long term fix.

1eStar

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#1581548 27-Jun-2016 22:06

The three tenets we were taught years ago for pavement design are: drainage, drainage and drainage.

If that water is getting across the drive without getting into the basecourse, it is fine, but where the surface seal has failed, you need to digout the failed foundation and patch it.