Jul-04-2020 07:14 AM
Jul-05-2020 04:56 AM
Jul-04-2020 08:05 PM
Jul-04-2020 06:30 PM
Jul-04-2020 05:52 PM
Jul-04-2020 05:48 PM
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.
Jul-04-2020 04:22 PM
tropical36 wrote:
All I've seen, have cracked wherever it felt like it, despite having form/saw joints.
Jul-04-2020 04:12 PM
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.
Jul-04-2020 01:38 PM
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.
Jul-04-2020 01:13 PM
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.
Jul-04-2020 01:11 PM
Jul-04-2020 01:06 PM
Jul-04-2020 11:51 AM
Jul-04-2020 10:51 AM
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.
Jul-04-2020 10:19 AM
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.
Jul-04-2020 10:01 AM