Footings yesterday, block today?

[MushCreek]

I'm watching the progress as they start building a couple houses on our road. Yesterday, late in the afternoon, they poured the footings. It was a cool night; about 50 for a low. This morning, they have a block crew out there laying up block on the brand-new footings! That seems awful fast to me. Maybe that's why there are so many ads for foundation repair around here. Glad it's not my house.

 

[GMCGarage]

I'm watching the progress as they start building a couple houses on our road. Yesterday, late in the afternoon, they poured the footings. It was a cool night; about 50 for a low. This morning, they have a block crew out there laying up block on the brand-new footings! That seems awful fast to me. Maybe that's why there are so many ads for foundation repair around here. Glad it's not my house.

Depends on the mix. We used to pour precast in the afternoon, and get 3000-4000 by morning.

Also, the block is not that heavy compared to final load.

Walk over and ask what psi they used

 

[MushCreek]

I remember a buddy of mine that had a new house built in FL. They poured the monolithic slab, and stacked pallets of block on it a day or two later. That slab had cracks everywhere, covered up by carpet, of course.

 

[ssdave]

I routinely see crews set up bar and forms the next day on new footings, and then pour the walls the next. I don't think there's enough load in a few courses of block to make any difference at all to the uncured footings.

Foundation repair needs are usually a function of improper base prep or not digging deep enough, or not keeping water out, not a matter of concrete strength.

 

[MushCreek]

OK; I guess I'm old school when it comes to concrete. It will be interesting to see how fast these houses go up. Real estate is red-hot here. Same builder is supposedly going to build four more house further down our road. Considering that there are currently only a few houses here, it's really going to change the neighborhood.

 

[NUTTSGT]

I forget if I waited a day, two or it was the next day. Watched one youtube video and they were laying the first course in the wet concrete. Granted, it was for a block wall

 

[dutchgray]

I forget if I waited a day, two or it was the next day. Watched one youtube video and they were laying the first course in the wet concrete. Granted, it was for a block wall

My uncle always did that, first course on the wet concrete footing, when you're on a fixed price every time saving you can make you do.
He would also lay footing courses with a shovel, if it couldn't be seen it didn't need to be that great. I know when he was in his prime his 6 man crew, 4 brickies, 2 labourers could do 16,000 bricks a day on footing work. Now we fill to almost the surface with concrete because its easier, stronger and you don't have to work in a trench.

 

[jack stand]

Yeah that block is inconsequential to the footer, "green" or not. 7 days for working strength.