Still chipping away at it. (Some jackhammer puns to start the post...)
Actually, done chipping. For now. All concrete has been broken out and removed. Ugh. That was a wonderful bit of awful.
Here's all of the first layer of concrete busted out. You can see the uncovered pier pours as the gravel layer is dug out.
Rented the electric saw a second time. Only an hour of cutting this time. I wanted to separate the pier pour from the slab as much as possible before jackhammering it out. I didn't want the transmitting vibrations to weaken the concrete slab above it, or disturb any soil near the footers any more than I had to. Plus, it makes for a neater edge and an easier time breaking it out.
First pier pour removed.
Breaking out the second pier pour... this was just painful. It was close to 10 inches thick and the rebar was literally 3 inches apart in places. It was right at the edge of what my Hilti was capable of working through. Lodged the chisel between the rebar and rock twice on accident and had to use my angle grinder to cut it free both times.
"Aaaaaaand it's gone." Thank goodness. Hats off to those who do this for a living, the monotony and bending over would get to me after a while. You can see a lot of gravel set aside. Might as well reuse it. Why haul it out just to buy more of it and haul it back down again? Their gravel layer was super thick in areas. It was as much as 10 inches at the sump pit area! Hopefully I'll have enough for my dig out, I think code is a minimum of 4".
Now on to that darn sump pit.
So I was digging... and I pulled a perfectly good sledgehammer out from under the slab! It's a rubber handle and perfectly good. Score! LOL
Just look how thick that gravel fill is! Dang guys! Must be way easier to level and overshoot it that way. I would just dig, then let the collected water from under slab run into my pit. Then I'd trigger the sump pump, drain it down, and repeat. Over and over.
This would've been nearly impossible without the jackhammer. My pick axe was just bouncing off it. Borderline shale all the way down. You can see the scoring lines from the chisel on the sides. BARF! It's almost 3 feet wide and 50" deep. I ordered a 24" x 48" sewage basin to use here. It was pricey, but everything else was so suboptimal or by the time you spent the extra money to jerry rig it, it was nearly the same price.
Next step? Getting rid of the concrete. I had a large debris container dropped on my driveway, but darn it, the same day we got almost a foot of snow. I had to shovel a path around the side of the house, down the hill, into the sliding door to the walk out basement. It's gonna be a lot of trips with that 5 gallon bucket.
After that, here's the breakdown of the foundation pour. The 16" wall and the lower 5" slab will actually probably be poured together. Not sure where I got it in my head that I'd do that separately. Anyway, that's it for now...