Fill with gravel, class II or CMB and compact. Clay WILL expand and probably lift the new slab. Then pour the slab, dowel into existing if you want to make sure the slab doesn't move vertically from the original.
Sent from my SM-G955U using Tapatalk
One issue besides the saw cut not going completely up against the wall is it doesn't appear they put an expansion joint up against the wall. Those will move separately and it crack can be caused by no expansion.
The saw cut can only get so close as the 4" grinder will allow.
Sent from my...
Put a straight edge over the areas that are not touched by the grinder, do you see light? If not then the grinder is not sitting flat in the surface while grinding. If you see light under the straight egde keep grinding or you will see those areas in your stain.
Keep in mind stained concrete...
Re: 28 x 40 x 4" slab price good ?
Id say if you're happy; go for it. Im guessing theres a big labor rate and materials cost difference.
Sent from my SM-G955U using Tapatalk
Re: 28 x 40 x 4" slab price good ?
Concrete does not stop moisture thats what the vapor barrier is for. Concrete is VERY porous.
In my area Im sure there are guys that will do it for near that cheap but you'd get sub-standard work from a unlicensed guy working out of the back of his...
I have no idea what Ready Mix concrete goes for in your part of the country but here in California the concrete is approx half of the cost of your job. $3600 sounds insanely cheap.
Sent from my SM-G955U using Tapatalk
You can grind down the section that is heaved, if it's settled you can get a company to use foam to bring it up but I have no clue what that would cost. Thats a small driveway; probably cheaper to demo and re-pour.
Sikaflex is a good product and stretches quite a lot.
Sent from my SM-G955U...
What do you mean have it tested before its poured? That's why I suggested to get the batch plant testing results, around here they are required to keep them for all of the city projects and most of the big commercial jobs. If that is what you were talking about :beer:
You don't want concrete...
No problem and glad to help. Feel free to ask any questions you have.
You'd be surprised how many people don't think about drainage or slope.
Ask your builder what percent of fall he is going to give you (unless you want a flat level pad). Area drains can create problems with machinery or...
I'm an Project Manager / Estimator for a concrete company in Southern California and see these garage slabs all the time. Your end pricing will vary quite a bit from what is normal in our area due to the ready mix companies, labor rates, base requirements, etc.
I would go 5.5" thick (so they...
Agreed! I had the same thing happen with a Craftsman 1/2" drill (without a side handle) I purchased as a dedicated tubing notcher. The hole saw got hung up in the material and the lock switch got accidentally stuck on without my knowledge (gloves). I was lucky to get my hand out of the way...