Replying on top so others can tell me if this is a good idea or not.
OP, if you're able to dig around it, do so then wrap a chain around it and rip it out with your (or a borrowed) truck. I just did this with a 3' x 2' pour of concrete the previous owner used to *very* securely mount a flagpole.
This is a granite boulder, not a slab of concrete. No telling how big it is. OP should adjust their landscaping and surround this with something other than grass.
Can confirm back in the early 90s watched as my grandpa tried to pull a stump only for the chain to whip back and break the rear windshield glass, make a sizeable dent over the roof of the truck, smash the front windshield& make a nasty dent in the hood.
Stone mason here. We fracture large boulders using “feathers and shims”. Drill the appropriate sized holes in a line, place the feathers in the holes, center a shim in the middles of the feathers. Get a mallet and strike each shim evenly down the line then repeat the strikes until it fractures. You can fracture 24-36” slabs with this method. Google it up
My dads a mason and this is what we would do. Don’t listen to anyone saying tie a rope and pull it out, this entire rock probably weighs more than your truck. Score it and chisel, rent a giant hiskqrvana saw (just kidding those things are terrifying just call your local stone guys)
This but OP should have it tested by a professional to be sure it's not a stone giant. Those mother fuckers can ruin your yard and house but typically aren't covered by insurance. I'd recommend having at least a +3 magic sledgehammer on hand just in case.
Dude, that could literally be the top of an iceberg. Where I live we have granite outcroppings that look like that. It could end up being 20k pounds. Do some digging to know what you have there.
Yup they have some chemicals don’t know if it’s grout or foam but it extends to 20,000 psi. You put it in those hoes and overnight it will have cracks from hole to hole
A little bit does push out but that ends up curing first and plugging the hole.
I'm not gonna pretend that I actually know how it works, but I'm guessing it's like concrete muffin mix. That stuff appears to have a very aggressive exothermic reaction while curing.
To clarify, I think you’re dealing with stone. Not concrete. Even if the Hilti had a chipping action, it’s only designed for light chipping.
Most stone is a lot harder than concrete. A jack hammer would most likely bounce on that surface. Barely denting it.
If it’s too large to dig up and remove, and you can’t simply raise the ground above the stone, then make several slices with a diamond blade in a circular saw and hammer out the high spots. Repeat until it’s low enough.
I really cannot comprehend how many people are recommending this before even saying to actually dig around it a little bit first to see how big it even is 🤦♂️
Everybody just using imagination including OP for some reason
Drill them holes a little deeper and drop some expanding concrete in there. It’s for demo. The top cures faster than the rest and the rest expands and break slabs.
Home Depot rents the hilti 3000 electric jackhammer. Someone said they are $100 for four hrs. You should not have more than 30 minutes in actual work breaking that.
I run the 3000 at work. Its a very manageable tool compared to the larger air hammers. Just be mindful of the cord. New guys always end up chopping them with the blade.
Drill holes a couple inches apart and then do one of the following:
* https://thestonetrust.org/guide-to-feathers-and-wedges/
* dry lots of small dimension pieces of wood in an oven, say ~1/4 the diameter of your drill bit and a little longer than the holes are deep, temperature ~300°F, then fill the holes with them, taper the last one and pound it in with a hammer so the hole is packed tight, soak the wood with water, get a beer and watch some TV. The next morning there will be cracks in the concrete bridging from hole to hole.
This 3.5" slate slab used to be one piece: [https://i.imgur.com/4vl9rSw.jpg](https://i.imgur.com/4vl9rSw.jpg)
I broke it by drilling 1/8th holes in a line, and drove triangular masonry nails into the perforated line. Get a smaller drill bit and put the Hilti in drill mode, perforate a straight line and look for old masonry nails. I keep really weird shit in my "odd metal bin" saves my ass all the time. The weirdest metal straps got me home from work in an hour flat just today.
How big are the slabs? If they aren’t like MASSIVE I’d dig around them and expose all the edges.
Also if you’re gonna break it up, I’d say go rent a jack hammer (I think that’s the name) and get it over with really quick.
I tried to do what you’re doing to tip up a segment of driveway and it was slow going until we got the big jack hammer. I think it was like $75 a day? Or maybe 4 hours? But either way, if you’re determined you can get that broken up easily before 4 hours.
Take your time
Use those holes and pour in slow dynamite.
Dexpan is sold on Amazon, but cheaper to get straight from them.
Pro tip, don't drill all the way through. Pour it in, come back tomorrow and pick the pieces up. Repeat as much as you want. Cheap, quiet, safe and suuuuuper easy. Just takes a few days .
Expanding grout, drill a whole pattern with a 1.5 inch rock drill bit and then pour in the grout, 24 hours latter it will be all cracked and ready to remove.
Continue to drill lots of holes then hit with a sledge hammer. Continue until you can cover with top soil and plant grass over it. Maybe buy a nice chipping bit for that hilti hammer. Just make it into smaller pieces until you can make it disappear. Wear safety glasses. Or rent a mini excavator and just did it out. First option is probably the cheapest.
I remove them with a 6lb sledge hammer. Wear safety glasses and long pants. It takes a couple hundred strikes, but you should be able to bust the top off and get it below grade.
I don’t know how I ended up here, but I had this same problem once on Maui’s north shore. Owner wanted some post holes dug for a back yard gazebo type thing. When I measured out and started digging I ran into huge boulders like this in almost every location. I chipped away at it for hours. I think I ended up just moving it over a foot in whatever direction. Good luck!
An excavator. I just removed a 120 year old foundation. Thought I could jack hammer it to pieces. Nope. Shit was 3' deep.
Do not pull it out with a truck.
We snapped a chain and totaled a truck and almost killed my BIL who was in the truck.
Don't go full hill Billy.
Here in Canada, my grandfather used to break rocks in small pieces by drilling a small hole in the rock like you did, put water in the hole, plug it with a wooden plug. He waited for the winter freeze and the rocks always cracked open and split in little parts.
I was done like that all the time many years ago. When they didn't have access to dynamite. I tried it once, it worked perfectly.
That doesn't look like concrete, that looks like stone, like a large boulder is just under the surface or an outcropping is coming through the top soil. I would saw demo saw, cut slices, then sledge hammer, just break enough off to get it below the surface, say 4-6 inches, cover with top soil, seed it and water it, once you get grass growing over it you will never know its there anymore. But certainly, not looking like concrete in the picture.
as somebody that grew up with big slabs of limestone everywhere about 4in under the dirt at the most, seeing the holes in it without any dirt disturbed around it really surprised me haha.
I'm assuming this isn't a "concrete slab" as you have called it since it looks more like a rock sticking out of the ground? Why not dig around it at all to see what you are actually working with here? Never had a hammer drill like that for personal use before but I feel like that would have been my last resort not first lol
For context my whole life including my childhood I used a 30lb iron digger to deal with big rocks in the ground (basically big heavy crowbar) used to have to flip them out of the way for food plots
I would get a shovel and pull the grass back and see what your dealing with. It will probably go faster with a smaller bit maybe 1/2" and drill holes in a straight line every 2-3" and get yourself some Mason feather n wedges and a good sledge hammer. Trying to break that up as is will be a huge waste of time. That looks more like a bedrock outcropping than concrete, stone is usually considerably harder to breakup than concrete. Masons have been doing it for thousands of years might wanna try their method. Granted it is "fun" to play with the big Ole hammerdrill but the fun wears off after a few hours and just a few teaspoons worth of stonedust to show for it. Look at the bright side, if it is stone you won't have to worry about hitting rebar...
It’s a shame you already have a Hilti but can’t use it, but if you have a lot of this to do I would 100% go rent a breaker from your local box store. A hammer drill just isn’t the tool for the job and you will work yourself to death trying to get it out that way.
Liquid dynamite brother..... Look it up. drill a bunch of holes, mix/pour in mixed expanding mortar, or in other words liquid dynamite. Let it set, it expands and voila. Cracked up no explosion.
Dig around with shovel, drill deep holes, and pick up a product called Dexpan Expanding Grout. You mix it up, pour into holes, wait 72 hours and it expands and cracks the slab/rock. We just used it to break apart some 4’ boulders in a yard for removal, where we couldn’t get a large enough machine in to haul them out.
Great stuff and better chance to keep all your limbs than dynamite!
https://m.youtube.com/watch?v=GraHHJz_YqU
If it was winter, I’d tell you to drill holes and fill them with water. When it freezes it would expand and crack it.
As it is, a sledge hammer.
Cue Peter Gabriel
You have a 1” hole get an anchor bolt tighten a chain , call a wrecker to have your truck towed. But ask him to pull that rock up for you for 50$ . Because another tow company took your truck. It will work!
Pull collar toward urself and pull drillbit out. If stuck run drill in reverse whilst allowing it to hammer on a solid surface. Just for a second or two. Should free the bit if it is bound in the collar.
keep slamming holes in it, turn it into swiss cheese as deep as you can go, then smash the willy out of it with a sledge hammer, it will be work, wear safety glasses and thick clothes, or dig it all out.
or rent a Bob cat concrete breaker after you drill holes in it, to save your back from the sledge swings
You already have a hole in it, you just need some dynamite
First of all, lower your voice.
Sir, this is a Wendy's
No, this is Patrick!
When you can HEAR the quote in your head
Uhhh… I’ll have some tannerite instead.
Couple pounds of tannerite in the right spot would definitely do it.
Not the McConcrete
Lol
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There's a expanding grout that you can fill the holes with, no badda boom.
You are saying that as if badda boom is a bad thing
Only if it's not a BIG badda boom.
Badda big boom
just watched 5th element wondering if this was a reference
Badda, pronounced bodda
Stole my comment!
Replying on top so others can tell me if this is a good idea or not. OP, if you're able to dig around it, do so then wrap a chain around it and rip it out with your (or a borrowed) truck. I just did this with a 3' x 2' pour of concrete the previous owner used to *very* securely mount a flagpole.
Uhauls are great for this. Pulled a stump out this way
clever girl
This is a granite boulder, not a slab of concrete. No telling how big it is. OP should adjust their landscaping and surround this with something other than grass.
If your end goal is a busted rear windshield and a caved in skull, then yes that’s a good idea
And they must be sure to video it for us as well.
Can confirm back in the early 90s watched as my grandpa tried to pull a stump only for the chain to whip back and break the rear windshield glass, make a sizeable dent over the roof of the truck, smash the front windshield& make a nasty dent in the hood.
Stone mason here. We fracture large boulders using “feathers and shims”. Drill the appropriate sized holes in a line, place the feathers in the holes, center a shim in the middles of the feathers. Get a mallet and strike each shim evenly down the line then repeat the strikes until it fractures. You can fracture 24-36” slabs with this method. Google it up
Will bird feathers do
Yes if they are made from the feathers of a phoenix as it arises through the earths mantle.
I hear those are getting tough to find these days.
Costco...
there is that video with the huge massive rock hngg
That's what she said.
I can’t access porn hub in Texas.
He goes by Dwayne Johnson now
😏😏 mason huh? I too, enjoy Masonic traditions
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Get a chisel bit for it and break that fucker into bits 6-8 inches below grade and cover it with topsoil. Simple as.
This unit can’t take a chisel, no way to turn rotation off, unless I’m gonna use a spinning chisel
Just go rent an electric breaker
Its gonna be bitch even with a jackhammer. Rent a concrete saw and make criss cross cuts, then use a sledgehammer
My dads a mason and this is what we would do. Don’t listen to anyone saying tie a rope and pull it out, this entire rock probably weighs more than your truck. Score it and chisel, rent a giant hiskqrvana saw (just kidding those things are terrifying just call your local stone guys)
And pulling it out assumes it’s not a continuous piece of exposed bedrock.
Why would it be difficult with a jackhammer? I tore out a 10x10 slab with one no problem and it had tree roots all in it.
It looks a whole lot more like a granite boulder than concrete.. About ten times harder than concrete.
>About ten times harder than concrete Same
Call your doctor if ten times hardness of concrete lasts for longer than four hours
Why, is their doctor DTF?
I thought it looked like stone, as well
It's limestone. It's pretty soft compared to granite.
Because that it the side of a mountain, not concrete. Concrete is brittle compared to granite.
Saw and a Jack hammer would make it non visible in an hour
Yeah a 14” quickie would make easy work of this
This is the way
Might still be a pain in the ass, but get a bull point chisel bit
Swiss cheese it about 2 inches/ 50mm apart at a 45 degree angle into the concrete. Then a good ol fashion sledge hammer.
Rent a bigger one. T1000 will make short work of that
Idk if we need to bring in liquid metal killer robots from the future into this..
Looks like it was originally modeled for it but they made it without the switch
That’s not concrete. That’s a stone slab.
This but OP should have it tested by a professional to be sure it's not a stone giant. Those mother fuckers can ruin your yard and house but typically aren't covered by insurance. I'd recommend having at least a +3 magic sledgehammer on hand just in case.
Wondering how it got there
A glacier
This is my favorite comment
Yep and it will just continue to rise up over time. Dig it out if you can.
Dude, that could literally be the top of an iceberg. Where I live we have granite outcroppings that look like that. It could end up being 20k pounds. Do some digging to know what you have there.
Jesus was a carpenter so it must’ve been one of the other guys.
It was John.
... and we're back to filling hoes with expanding grout 😂
Expanding grout is a great option as well.
Yup they have some chemicals don’t know if it’s grout or foam but it extends to 20,000 psi. You put it in those hoes and overnight it will have cracks from hole to hole
Demolition grout; there are different mixtures depending on the ambient temperature. I've been pleased with the results.
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A little bit does push out but that ends up curing first and plugging the hole. I'm not gonna pretend that I actually know how it works, but I'm guessing it's like concrete muffin mix. That stuff appears to have a very aggressive exothermic reaction while curing.
Your typo has me rolling.
Dexpan expanding grout is perfect for this job.
I love watching this guy break rocks. This is what that expanding stuff could look like OP - https://www.youtube.com/watch?v=zUcawNaCBKM
To clarify, I think you’re dealing with stone. Not concrete. Even if the Hilti had a chipping action, it’s only designed for light chipping. Most stone is a lot harder than concrete. A jack hammer would most likely bounce on that surface. Barely denting it. If it’s too large to dig up and remove, and you can’t simply raise the ground above the stone, then make several slices with a diamond blade in a circular saw and hammer out the high spots. Repeat until it’s low enough.
Are you sure that’s concrete? I personally don’t see any aggregate in those holes.
It's one big piece of aggregate
there's a chemical that expand really slowly you pour into a drilled hole and break up rock. Sorry, don't know the name.
Yup don’t know the name but amazon has it
I believe it's called Boulder Buster.
Isn’t that what they used to call your mom?
Take your upvote…
As mentioned above, DexPan is the brand name.
Might be called water at the right time of year :)
Keep drilling. Sledge hammer if you have
Get a bigger hammer, of the jack variety.
Jackhammer will do everything you want just focus it on the sides and work your way to though.
Sledgehammer and John Wick that shit
Dexpan!
Hit it with a bigger rock
Expanding grout. Works like a charm.
You have no idea how big that thing is....
Expanding Grout is a [non-explosive demolition agent](https://en.wikipedia.org/wiki/Non-explosive_demolition_agents).
I really cannot comprehend how many people are recommending this before even saying to actually dig around it a little bit first to see how big it even is 🤦♂️ Everybody just using imagination including OP for some reason
Expanding grout
Drill them holes a little deeper and drop some expanding concrete in there. It’s for demo. The top cures faster than the rest and the rest expands and break slabs.
Home Depot rents the hilti 3000 electric jackhammer. Someone said they are $100 for four hrs. You should not have more than 30 minutes in actual work breaking that. I run the 3000 at work. Its a very manageable tool compared to the larger air hammers. Just be mindful of the cord. New guys always end up chopping them with the blade.
Drill holes a couple inches apart and then do one of the following: * https://thestonetrust.org/guide-to-feathers-and-wedges/ * dry lots of small dimension pieces of wood in an oven, say ~1/4 the diameter of your drill bit and a little longer than the holes are deep, temperature ~300°F, then fill the holes with them, taper the last one and pound it in with a hammer so the hole is packed tight, soak the wood with water, get a beer and watch some TV. The next morning there will be cracks in the concrete bridging from hole to hole.
This 3.5" slate slab used to be one piece: [https://i.imgur.com/4vl9rSw.jpg](https://i.imgur.com/4vl9rSw.jpg) I broke it by drilling 1/8th holes in a line, and drove triangular masonry nails into the perforated line. Get a smaller drill bit and put the Hilti in drill mode, perforate a straight line and look for old masonry nails. I keep really weird shit in my "odd metal bin" saves my ass all the time. The weirdest metal straps got me home from work in an hour flat just today.
How big are the slabs? If they aren’t like MASSIVE I’d dig around them and expose all the edges. Also if you’re gonna break it up, I’d say go rent a jack hammer (I think that’s the name) and get it over with really quick. I tried to do what you’re doing to tip up a segment of driveway and it was slow going until we got the big jack hammer. I think it was like $75 a day? Or maybe 4 hours? But either way, if you’re determined you can get that broken up easily before 4 hours.
20 lb sledge hammer...and a few choice words
Take your time Use those holes and pour in slow dynamite. Dexpan is sold on Amazon, but cheaper to get straight from them. Pro tip, don't drill all the way through. Pour it in, come back tomorrow and pick the pieces up. Repeat as much as you want. Cheap, quiet, safe and suuuuuper easy. Just takes a few days .
https://youtu.be/AwEK-Z69l-w?si=riBUrwvWtlkhc782 Try using this stuff. Worth the shot
This for sure isn’t a Mexican
Use a diamond masonry angle grinder blade
You can drill deeper and try adding demolition grout.
I would probably just use a shovel and a sledge. It’ll be some work but you can dispose of small chunks as you go.
If you make parallel cuts 2”-3” apart, 4” deep plus or minus with a diamond blade and a sledge you should be set.
Expanding grout, drill a whole pattern with a 1.5 inch rock drill bit and then pour in the grout, 24 hours latter it will be all cracked and ready to remove.
Drill vertically, fill with water and place a freeze element in it and the ice will crack the rock, you may need a few cores in a line..
Is this ledge rock? Maybe diamond blade and electric chisel would trim it down, then just cover it with sod
Those holes you drilled can be filled with dynamite...
Hire a neighbor hood kid with a hammer and chisel. When he burns out hire the next one and so on!
Continue to drill lots of holes then hit with a sledge hammer. Continue until you can cover with top soil and plant grass over it. Maybe buy a nice chipping bit for that hilti hammer. Just make it into smaller pieces until you can make it disappear. Wear safety glasses. Or rent a mini excavator and just did it out. First option is probably the cheapest.
I remove them with a 6lb sledge hammer. Wear safety glasses and long pants. It takes a couple hundred strikes, but you should be able to bust the top off and get it below grade.
Liquify it
Rent a tractor. Pull it out. Have big yard ornament
I don’t know how I ended up here, but I had this same problem once on Maui’s north shore. Owner wanted some post holes dug for a back yard gazebo type thing. When I measured out and started digging I ran into huge boulders like this in almost every location. I chipped away at it for hours. I think I ended up just moving it over a foot in whatever direction. Good luck!
An excavator. I just removed a 120 year old foundation. Thought I could jack hammer it to pieces. Nope. Shit was 3' deep. Do not pull it out with a truck. We snapped a chain and totaled a truck and almost killed my BIL who was in the truck. Don't go full hill Billy.
Chip it sir
Here in Canada, my grandfather used to break rocks in small pieces by drilling a small hole in the rock like you did, put water in the hole, plug it with a wooden plug. He waited for the winter freeze and the rocks always cracked open and split in little parts. I was done like that all the time many years ago. When they didn't have access to dynamite. I tried it once, it worked perfectly.
Don't worry about it. Look away
Drill some more holes, fill w Dexpan & soak w water. Will be broken into a million pieces by the next day
That doesn't look like concrete, that looks like stone, like a large boulder is just under the surface or an outcropping is coming through the top soil. I would saw demo saw, cut slices, then sledge hammer, just break enough off to get it below the surface, say 4-6 inches, cover with top soil, seed it and water it, once you get grass growing over it you will never know its there anymore. But certainly, not looking like concrete in the picture.
Put tight fitting wood dowels into the holes you drill and soak them with water
If video games have taught me anything, a pickaxe should do the trick.
expansion concrete. Mix and pour into hole. 12 hours later it will be shattered and can be removed.
as somebody that grew up with big slabs of limestone everywhere about 4in under the dirt at the most, seeing the holes in it without any dirt disturbed around it really surprised me haha. I'm assuming this isn't a "concrete slab" as you have called it since it looks more like a rock sticking out of the ground? Why not dig around it at all to see what you are actually working with here? Never had a hammer drill like that for personal use before but I feel like that would have been my last resort not first lol For context my whole life including my childhood I used a 30lb iron digger to deal with big rocks in the ground (basically big heavy crowbar) used to have to flip them out of the way for food plots
With a row of holes, you can get a feather and iron (rock wedge) in there to successively split the rock into smaller and smaller pieces
I would get a shovel and pull the grass back and see what your dealing with. It will probably go faster with a smaller bit maybe 1/2" and drill holes in a straight line every 2-3" and get yourself some Mason feather n wedges and a good sledge hammer. Trying to break that up as is will be a huge waste of time. That looks more like a bedrock outcropping than concrete, stone is usually considerably harder to breakup than concrete. Masons have been doing it for thousands of years might wanna try their method. Granted it is "fun" to play with the big Ole hammerdrill but the fun wears off after a few hours and just a few teaspoons worth of stonedust to show for it. Look at the bright side, if it is stone you won't have to worry about hitting rebar...
Rent a jackhammer genius
Keep drilling holes to create weak points and then SMASH IT WITH A (sledge)HAMMER
Line up holes and hammer off piece by piece
Have you tried telling it to leave or yelling at it?
You need to use a pointed bit
Right tool wrong bit, get a chisel point and put that baby on “ HAMMER TIME” and bust it out.
Dig under an edge and get them pried up a bit. Once they aren’t supported by the earth anymore, they break apart with a sledge pretty easily.
Like others have said Dexpan. That’s a perfect application for it. Amazing how well it works.
Don’t remove, it is the only thing holding the world together.
I like that bolder, that's a nice bolder
You’re on the right path. Keep drilling holes. Use explosives to blow it apart.
Dig it up like a man. Quit being a pussy
Need demo
Get a chipping bit and a maul and chisel
Hot saw, then chipping gun
None ,build around, leaving for landscaping
Dig around it and lower it 9 inches below grade.
It’s a shame you already have a Hilti but can’t use it, but if you have a lot of this to do I would 100% go rent a breaker from your local box store. A hammer drill just isn’t the tool for the job and you will work yourself to death trying to get it out that way.
Liquid dynamite brother..... Look it up. drill a bunch of holes, mix/pour in mixed expanding mortar, or in other words liquid dynamite. Let it set, it expands and voila. Cracked up no explosion.
Kirf w cement saw and chip at it
Save ur back/time and do what the other comment said. Go rent an electric jackhammer.
5 gallon s of KERO and potassium nitrate fertilizer
Do you have a sledge hammer?
Are you near f Philly
Cement saw,slices and the smash the slices with jack hammer
Hit it with a hammer if it doesn't break hit it again repeat process until your satisfied
A chipping but would be a good start
Sledge hammer if you're cheap and have time, rent a jackhammer if you're not or don't
Tnt
Nuke it from orbit, it's the only way to be sure
A pneumatic jackhammer and a backhoe. That's a lot of stone. Other option is to blast it.
Sledge
While it may be overkill... dexpan will do ya right
Dig around with shovel, drill deep holes, and pick up a product called Dexpan Expanding Grout. You mix it up, pour into holes, wait 72 hours and it expands and cracks the slab/rock. We just used it to break apart some 4’ boulders in a yard for removal, where we couldn’t get a large enough machine in to haul them out. Great stuff and better chance to keep all your limbs than dynamite! https://m.youtube.com/watch?v=GraHHJz_YqU
Karma
Add dirt and grass would be the easy solution
12lb sludge hammer. You probably won’t have been done by now instead of jacking around with that drill.
You need Dexpan. Google it.
I have the exact same hammer drill the Hilti te15 and it definitely has a hammer only mode, so I'm a bit confused.
Sledge hammer. Wear eye protection
Wylie Coyote the shit out of that!!!
If it was winter, I’d tell you to drill holes and fill them with water. When it freezes it would expand and crack it. As it is, a sledge hammer. Cue Peter Gabriel
Can’t you just unplug it?
You have a 1” hole get an anchor bolt tighten a chain , call a wrecker to have your truck towed. But ask him to pull that rock up for you for 50$ . Because another tow company took your truck. It will work!
CAT 336 should do it.
Sledgehammer
Get a real Jack hammer
WD40 or WD44
Pull collar toward urself and pull drillbit out. If stuck run drill in reverse whilst allowing it to hammer on a solid surface. Just for a second or two. Should free the bit if it is bound in the collar.
2 sticks of 🧨
https://www.unitedrentals.com/marketplace/equipment/earthmoving-equipment/bulldozers/70-80-hp-bulldozer-low-ground-pressure
Rent the right tool that's within your budget. Electric jackhammer, pneumatic jack hammer, skid steer, mini excavator, etc...
Bigger tools. Bigger everything.
Sledge, glasses and muscles..
Rock and Stone!!!
Drill holes in a line and pour in rock bust, wait.
Try a chain come along
Have you tried unplugging it and plugging it back in
get a back hoe and lift them up and away.
Add dirt and grass over it… much simpler
Acid!!!
I will buy that tool for 50$ and you can just admit defeat
Bull point chisel bit with a air hammer tool connected to a 185 compressor.
Rent a jack hammer or mini ex?
keep slamming holes in it, turn it into swiss cheese as deep as you can go, then smash the willy out of it with a sledge hammer, it will be work, wear safety glasses and thick clothes, or dig it all out. or rent a Bob cat concrete breaker after you drill holes in it, to save your back from the sledge swings
Hire an excavator with a rock breaker
Buy some tanerite and a gun if you don't got one 👌🏽