Good Sam Club Open Roads Forum: Class A Motorhomes: Concrete driveway thickness??
Open Roads Forum Already a member? Login here.   If not, Register Today!  |  Help

Newest  |  Active  |  Popular  |  RVing FAQ Forum Rules  |  Forum Posting Help and Support  |  Contact  

Search:   Advanced Search

Search only in Class A Motorhomes

Open Roads Forum  >  Class A Motorhomes  >  All

 > Concrete driveway thickness??

Reply to Topic  |  Subscribe  |  Print Topic  |  Post New Topic  | 
Page of 4  
Prev  |  Next
JRscooby

Indepmo

Senior Member

Joined: 06/10/2019

View Profile


Offline
Posted: 07/04/20 11:19am Link  |  Quote  |  Print  |  Notify Moderator

ppine wrote:

Concrete highways are normally 4 inches thick to stand up to truck traffic. Call some contractors and ask them. You might be right on the margin of safety.


I don't know about where you are, or where OP is, but around here highway will be a foot or better.

I agree with the idea of use what you got until it fails. At fail, decide if going to keep MH and house for a long time. Broken concrete, unless pieces are shifting can safely be parked on for a long time. Ready to sell, replace with 4 inches..

valhalla360

No paticular place.

Senior Member

Joined: 08/19/2009

View Profile



Posted: 07/04/20 11:51am Link  |  Quote  |  Print  |  Notify Moderator

ppine wrote:

Concrete highways are normally 4 inches thick to stand up to truck traffic. Call some contractors and ask them. You might be right on the margin of safety.


I'm in the industry and the thinnest concrete I've ever seen used on a highway is 7 inches. 8 to 12 inches is more common.

For a driveway with a big MH, I would go with 6 inch....it is critical that the base below is compacted well.

Concrete cracks...you can either form/saw joints that look nice or they will form for you and they will be ugly.


Tammy & Mike
Ford F250 V10
2008 Copper Canyon 5er
Catalac Catamaran 34'
Full Time spliting time between boat and 5er


Bruce Brown

Northern NY

Moderator

Joined: 06/01/2001

View Profile



Good Sam RV Club Member


Posted: 07/04/20 12:51pm Link  |  Quote  |  Print  |  Notify Moderator

Add me to the list;

Concrete highways are 12" thick. A 4" highway wouldn't last 24 hours with any real traffic. Heck the 12" ones don't last around here. I'm not a fan a the thump, thump, thumping concrete highways for our part of the country. In the south, sure. In the freeze/thaw areas, not a good idea IMO.

When we built our garage we went with 6" thick, 4000# mix with 1/2" rebar on 12" squares topped with mesh holding the in-floor heating tubes. When it had cured we then did relief cuts so there is no span greater than 16' without a cut.

We live in a heavy freeze/thaw area, the garage was built in 2001. The floor looks as good today as the day we poured it.

With that said, I wouldn't expect good things to happen parking a DP on a 3" slab, but maybe.


There are 24 hours in every day - it all depends on how you choose to use them.
Bruce & Jill Brown
2008 Kountry Star Pusher 3910


joelc

Cedar Point, NC

Senior Member

Joined: 02/23/2004

View Profile


Offline
Posted: 07/04/20 02:06pm Link  |  Quote  |  Print  |  Notify Moderator

My pad for my 5er is 6" thick and is reinvorced by fiberglass. There are also different classes of concrete. Mine is rated for 4000 lbs per square inch. (56 x 20)

Forgot to add there is a good base of crushed stone as a base.

* This post was edited 07/04/20 02:16pm by joelc *

valhalla360

No paticular place.

Senior Member

Joined: 08/19/2009

View Profile



Posted: 07/04/20 02:11pm Link  |  Quote  |  Print  |  Notify Moderator

The compression strength won't have a lot of impact. The stress cracks form due to tension not compression and concrete is lousy in tension. Thickness and a good compacted base is where it's at.

tropical36

Southwest Florida_USA

Senior Member

Joined: 07/11/2004

View Profile


Offline
Posted: 07/04/20 02:13pm Link  |  Quote  |  Print  |  Notify Moderator

valhalla360 wrote:

ppine wrote:

Concrete highways are normally 4 inches thick to stand up to truck traffic. Call some contractors and ask them. You might be right on the margin of safety.


I'm in the industry and the thinnest concrete I've ever seen used on a highway is 7 inches. 8 to 12 inches is more common.

For a driveway with a big MH, I would go with 6 inch....it is critical that the base below is compacted well.

Concrete cracks...you can either form/saw joints that look nice or they will form for you and they will be ugly.

All I've seen, have cracked wherever it felt like it, despite having form/saw joints.


"We are often so caught up in our destination that we forget to appreciate the journey."

07 Revolution LE 40E_Spartan MM_06 400HP C9 CAT_Allison 3000.

Dinghy_2010 Jeep Wrangler JKU ISLANDER.

1998 36ft. National Tropi-Cal Chevy Model 6350 (Sold)


JRscooby

Indepmo

Senior Member

Joined: 06/10/2019

View Profile


Offline
Posted: 07/04/20 02:38pm Link  |  Quote  |  Print  |  Notify Moderator

Bruce Brown wrote:

Add me to the list;

Concrete highways are 12" thick. A 4" highway wouldn't last 24 hours with any real traffic. Heck the 12" ones don't last around here. I'm not a fan a the thump, thump, thumping concrete highways for our part of the country. In the south, sure. In the freeze/thaw areas, not a good idea IMO.


In years past I have made fair paydays hauling the slabs when the state decides to cut out 1 bump to put in 2.

wa8yxm

Wherever I happen to park

Senior Member

Joined: 07/04/2006

View Profile


Offline
Posted: 07/04/20 05:12pm Link  |  Quote  |  Print  |  Notify Moderator

ppine wrote:

Concrete highways are normally 4 inches thick to stand up to truck traffic. Call some contractors and ask them. You might be right on the margin of safety.


I have seen 8-12 inches thick.
But in this country they don't make 'em thick enough (usually)


Home is where I park it.
Kenwood TS-2000 housed in a 2005 Damon Intruder 377


valhalla360

No paticular place.

Senior Member

Joined: 08/19/2009

View Profile



Posted: 07/04/20 05:22pm Link  |  Quote  |  Print  |  Notify Moderator

tropical36 wrote:


All I've seen, have cracked wherever it felt like it, despite having form/saw joints.


Often that means if they sawed the joint, they waited too long. Just the expansion/contraction from day to night can crack a slab.

Forming the joint is OK for DIY work but hard to get consistent depth with wet concrete wanting to reform into a single piece.

Spacing for joints, depends on thickness and reinforcement...a thin non-reinforced slab will require a lot of joints. It will also be more critical that you have the base well compacted.

tropical36

Southwest Florida_USA

Senior Member

Joined: 07/11/2004

View Profile


Offline
Posted: 07/04/20 06:48pm Link  |  Quote  |  Print  |  Notify Moderator

valhalla360 wrote:

tropical36 wrote:


All I've seen, have cracked wherever it felt like it, despite having form/saw joints.


Often that means if they sawed the joint, they waited too long. Just the expansion/contraction from day to night can crack a slab.

Forming the joint is OK for DIY work but hard to get consistent depth with wet concrete wanting to reform into a single piece.

Spacing for joints, depends on thickness and reinforcement...a thin non-reinforced slab will require a lot of joints. It will also be more critical that you have the base well compacted.

I get what you're saying and must admit, I'm pretty much of an amateur, for pouring concrete. Then again, I've seen the same from would be professionals

Reply to Topic  |  Subscribe  |  Print Topic  |  Post New Topic  | 
Page of 4  
Prev  |  Next

Open Roads Forum  >  Class A Motorhomes  >  All

 > Concrete driveway thickness??
Search:   Advanced Search

Search only in Class A Motorhomes


New posts No new posts
Closed, new posts Closed, no new posts
Moved, new posts Moved, no new posts

Adjust text size:




© 2020 CWI, Inc. © 2020 Good Sam Enterprises, LLC. All Rights Reserved.