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Old 09-06-2014, 11:11 PM   #15
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It sounds like you have a great relationship with your nephew. I don't think it will be possible to know ahead of time what sort of damage you might do. Given that, I would see if there are other alternatives so as to not jeopardize that great relationship.
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Old 09-06-2014, 11:19 PM   #16
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Our house was a Parade of Homes house built in 1986. The driveway is pretty well shot due to the MH's driving over it. It's only as thick as a 2X4 set edgewise so maybe 3" thick. Going to have to replace it before we can sell the place.
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Old 09-06-2014, 11:29 PM   #17
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What is the base and other dirt?

Weather?

If heavy clay and dry then maybe okay but heavy clay and rainy it would be bad.

Sandy soil drains well but has little support.

In short it is likely going to be high risk of damage unless local folks can show otherwise.
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Old 09-07-2014, 08:11 AM   #18
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Driveway

Working on highway construction for 35 years, I've seen 11" highway slabs crack. 4" slab, imo, is to thin. That's why when I poured my driveway, is was on a solid base, poured it 6" with highway mesh, the first two slabs, then the rest I put in 1/2" rebar, 9 years of the motor home driving on it, parking on it and not one crack. So, it pays to pour it thicker than 4" and go extra expense and put in rebar.
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Old 09-07-2014, 09:05 AM   #19
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Not to hijack the thread, when planning a new driveway that would hold a heavy coach. Would it help to sink Sono tubes on Bigfoot bases under the areas where the tires would come to rest, plus a couple more in between?
Just wondering for future planning.
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Old 09-07-2014, 09:11 AM   #20
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Not to hijack the thread, when planning a new driveway that would hold a heavy coach. Would it help to sink Sono tubes on Bigfoot bases under the areas where the tires would come to rest, plus a couple more in between?
Just wondering for future planning.
Thanks


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Definately would help, just for the record I have also been slinging concrete for many years, we do have a saying, Concrete Is GAURANTEED to do one thing, Crack....Under the most perfect conditions I will crack....that being said if designed correctly you can minimize the crack potential, and more importantly keep the cracks from separating....expansion joints, steel, Prep, etc...all play an important roll...
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Old 09-07-2014, 09:17 AM   #21
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Concrete has 2 guarantees. It will get hard and it will crack. If you have cured 4" it will be ok. Just stay away from the edges.
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Old 09-07-2014, 09:17 AM   #22
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Definately would help, just for the record I have also been slinging concrete for many years, we do have a saying, Concrete Is GAURANTEED to do one thing, Crack....Under the most perfect conditions I will crack....that being said if designed correctly you can minimize the crack potential, and more importantly keep the cracks from separating....expansion joints, steel, Prep, etc...all play an important roll...

Thanks, I was thinking vertical rebar in the tubes tied to horizontal rebar in the pad. And of course expansion strips etc.


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Old 09-07-2014, 09:17 AM   #23
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Quote:
Originally Posted by IMDSailor View Post
Not to hijack the thread, when planning a new driveway that would hold a heavy coach. Would it help to sink Sono tubes on Bigfoot bases under the areas where the tires would come to rest, plus a couple more in between?
Just wondering for future planning.
Thanks


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There are several good threads dedicated to driveway and parking pad design. Suggest to search and check them out.
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Old 09-07-2014, 11:33 AM   #24
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4" concrete slab

The advice in the replies are very accurate. I am a sales rep for a ready mix concrete company. I would not recommend parking a heavy RV on that slab. Proper sub grade preparation with at least 5-6" of compacted granular fill, followed by 6 inches of 32mpa c2 exposure concrete with 15 mm reinforcing bars on an 18" grid would be my recommendation.
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Old 09-07-2014, 11:36 AM   #25
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Alternatives to concrete?

Folks,

Are there any alternatives to concrete?

Asphalt over a solid base?

Pavers? Pavers over Concrete?

Just wonder's.

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Old 09-07-2014, 12:31 PM   #26
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Parking heavy coach on 4" concrete

2000 40' Newmar MADP did this to 4" 2500 psi concrete. I would suggest 4", 4000 psi concrete with 3/8" rebar on 12" centers. Does not add much cost but you can park a 707 on it without damage. Click image for larger version

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Old 09-08-2014, 06:17 AM   #27
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proper way

Quote:
Originally Posted by Ziggy07 View Post
The advice in the replies are very accurate. I am a sales rep for a ready mix concrete company. I would not recommend parking a heavy RV on that slab. Proper sub grade preparation with at least 5-6" of compacted granular fill, followed by 6 inches of 32mpa c2 exposure concrete with 15 mm reinforcing bars on an 18" grid would be my recommendation.
This is the proper way, digging down where the wheels will rest is a waste of time and money. A good base, 6" concrete with rebar 12"-18" box pattern will do it, 9 years in parking mine with freeze and thaw, no cracks. 4" is a waster of time and money.
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Old 09-08-2014, 07:29 AM   #28
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I agree. The subgrade prep is the most important aspect. The only difference in cost between 6" and 4" is the cost of the concrete. The labor and steel is the same. Using the cost of concrete in my area, for my 48 x 26 slab, it cost me about $700.
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