poured curb instead of block

[chevelless1]

My concrete guy wants to pour a 36" footer, pour the floor and come back and pour a curb using a form. My question is.....is it common practice to pour a curb? I've seen mostly block used for this. This is my first post and I hope to get some great info from this site. The garage is going to be a 12 x 24 added on to an already exsisting 2 car attached garage.

 

[PAToyota]

I'm guessing you mean 36" foundation wall. The footer is the thing at the bottom of the trench that you put a wall on.

The big problem with pouring the curb separately is continuity. Unless there is adequate reinforcing and the curb is fairly sizable, it can dry too fast and degrade over time.

 

[Wardster]

As long as the two are tied together with reinforcing steel and it is cured properly, then you should not have a problem.

-Wardster

 

[chevelless1]

thanks for the quick responses. I guess I meant a 36" poured foundation wall. Yes he did mention tying them together.

 

[car99r]

I just had the same thing done.

My contractor actually poured the footings one day and came back a few days later and poured the pad and curb. He actually poured the pad and then put forms on and poured the curb all in about 4 hours. However, he did not tie the curb in with anything so the continuity is all I have. I was kind of dissapointed int he craftsmanship of the curb myself. Make sure your guy ties it in even if he pours it the same day...

 

[JCByrd24]

I don't understand why he'd want to do a separate pour for a curb unless it is slab construction, but that doesn't sound like what you have.

Here in Maine there are 2 options:

1) The right way: footer, frost wall (foundation wall), floor. Just like a house with a full basement, there are 3 different pours; 4 ft deep trench with footer on bottom (4 ft is frost line in Maine), then walls are formed and poured to grade height + some. In this case you can pour pretty much as high as you want above grade to get your height or just to keep you lumber off grade, but it doesn't make much sense to do it in separate pours. The floor is then poured inside the walls

2) Slab on grade construction (the cheap way out). For garages up to 28x28 you can get away with single pour "floating" slab, thicker around the edges if necessary, where the slab is supporting the building because there are no footings and frost wall. You then can build a curb on top of the slab with block or a second pour to get the height you want or get off grade.

My confusion from your question is why would you form and strip twice instead of once, have the concrete truck there twice (well 3 times), and sacrifice the strength....maybe I'm just not understanding the construction out there.

 

[jamm]

1) The right way: footer, frost wall (foundation wall), floor. Just like a house with a full basement, there are 3 different pours; 4 ft deep trench with footer on bottom (4 ft is frost line in Maine), then walls are formed and poured to grade height + some. In this case you can pour pretty much as high as you want above grade to get your height or just to keep you lumber off grade, but it doesn't make much sense to do it in separate pours. The floor is then poured inside the walls

X2

Just pour the foundation wall to the elevation you want the curb. THe floor is the poured inside the foundation wall. This way, the interior of the foundation wall becomes the form. If you don't go this way, I'd make darn sure that the anchor bolts are set into the floor pour rather than just into the curb.

 

[kbs2244]

He is trying to do a flat slab, which is easier to do, then come back and form up a curb around the outside?
If so, make sure there is lots of vertical rebar down into the orginal slab, while it is still soft, for the curb to grab.
But if are more comfortable with a row of block, do it. It would be a good "after work" 2 hour project for a mason.
Either way, have the rebar sticking up.

 

[blkhonda1991]

X2

Just pour the foundation wall to the elevation you want the curb. THe floor is the poured inside the foundation wall. This way, the interior of the foundation wall becomes the form. If you don't go this way, I'd make darn sure that the anchor bolts are set into the floor pour rather than just into the curb.

this is pretty much the only way ive seen and designed garages here in CT