Breaking rock with Expando and Blasting a pit hole
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- เผยแพร่เมื่อ 15 ก.ย. 2024
- Another little housing subdivision job in a very rocky area, they're not done here yet and I'm sure I will be back.
Another example of the successful and safe use of high explosives to quickly and effectively solve a difficult rock problem.
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I have been using the pipe dope version of "Expando" for at least 50 years, the very best product for use when absolutely no leakage is acceptable. Also works well to get one more life out of damaged, old, or obsolete parts. My last application was to save two damaged 316L stainless steel tanks with warped, galled, and cross-threaded 4" male pipe thread outlets. Even with limited time and even less access space, Expando easily sealed the valves on perfectly the first try. Great stuff!
never ceases to amaze me just how much drilling is involved
It never ends Bruce
The expando is awesome. Would love to see a time lapse of it going to work.
Here you go - th-cam.com/video/PdaLeO59CAU/w-d-xo.html and th-cam.com/video/Zs-52-ryGzo/w-d-xo.html
Oooh 2 videos in one day thanks again Mr D - please stay safe and well sending love and regards to you and yours 👏❤️😁xxxxx
One more to go... but I think I'll run out of time.
@@demolitiondavedrillandblast looking forward to it my friend xxx
1.1K+👍's up demolition Dave thank you for taking us all along for your great adventures and breaking rocks
Thanks 👍
Great video. An im glad to see how you answered all that made a comment to you.. Looking forward to watching more of your videos. Frank from Bristol Connecticut USA
Glad you enjoyed it Frank, you have ~200 to chose from on my channel.
What a great product very interesting job Dave thanks for sharing 👍🇦🇺
Glad you enjoyed it
“There are few problems that cannot be solved by a suitable application of high explosives.”
Correct!
Very true, my rush hour traffic didn’t stand a chance
That Expando is amazing stuff - so effective. I think that is basically a quick lime chemistry?
Your hard work most times is all the drilling!
Great video Dave - you are getting (even) more inventive.
www.expando.com.au/PDF/MSDS%20Expansive%20Mortar%202015.pdf It often amazes me Chris.
Thanks Dave - very informative. :)
Thanks Dave, that was extremely interesting to watch.
Glad you enjoyed it, there are about 200 more videos here - th-cam.com/users/DemolitionDaveDrillingandBlastingvideos
another nice job dave.that goo certainly works well.i hope they have learnt to call you instead of wasting time with a breaker.
They almost always have a crack at it with a big machine and ruin the point when I've told them there is almost no chance, and then have less to spend on the blasting.
Wow; Happy Mother's Day Dave! Great music: what I assume to be Aussie Rock which seems appropriate given the excellent technology working we get "right here" in your video. And the little extra of having their transfer box on "solid Rock" too!
The music is just random youtube royalty free stuff that seemed to fit.
Ace job. Satisfaction
Great stuff Dave........
That expando's great stuff - bit less work than plugs and feathers.
Nice tidy work - impressive rocks you've got mate. :-)
Thanks 👍 please tune in again FH
DD, seems like social distancing is necessary ,always, when you and explosives are on the same continent! I think I'm headin' a little east. Greensburg PA should put me equal distance east-west wise!........hope that's enough......
john thewelder
Don’t get too close to me because I’m over by Latrobe in Youngstown. Well I guess were at least 6 miles apart. LOL. Aren’t these great videos?
Ole 33....!!!!
Fun to watch, and a darn good job! That cracking agent really works well, if you've got the time for it. Not as cool as blasting it, but a good deal less... energetic. XD
The initial music cut was a touch jarring for volume with headphones (not complaining, just suggestion for next time, I watch all of these. :) )
Thanks for watching Dan.
great expansive mortar for splitting rock blocks
11:20 The surprise in his voice is palpable. lol
Wow, that's brilliant! Beats feathers and wedges.
costs a lot more though.
GREAT GREAT GREAT
VIDEO.
THANK YOU!!!
Glad you liked it Ed, heaps more to chose from on this channel.
Back in the Eighties we got blue rock that was hard on jackhammers so the engineer decided rockdrills were the go and for a month we drilled with freehand drills. Eventually we got it to depth with Explosafe. What a mongrel of a job
Hi Jeffery, I'm guessing that Explosafe is a similar product, there is a lot to learn in order to get consistent good results with these products, that said real explosives win out is you have the option. Yeah, it can be a mongrel job, even when you have a lot of practice.
Like me Dave..... still working. Good to see a bit of grey hair! Wisdom highlights my wife calls them
Right on JTS
that expanding goo is great stuff
It is Tom!
I wish that I had some of that Expando expanding mortar. I have some granite boulders that I'd love to send to heaven.
Anybody can buy it Kevin
Sadly Expando ain't quite Anfo
@@demolitiondavedrillandblast where ,, whats it called , and how much does it cost
thanks
tom
Why use chemicals and explosives when feather and wedge will do the same job?
This big rock that we put the chemical in was a bit big for my plugs and feathers and we would have had no chance breaking out the pit. both the plugs and feathers and CCA are best for breaking down oversize, not much good at sectioning in situe rock.
How do you decide on how many holes need drilling? Is a square grid pattern the most reliable?
For blasting or splitting with the chemical cracking agent??
I'm confused about why I like this. I'm almost worried that TH-cam knew I would
The system knows all my friend.
Dave. How are you doing? Hope youre🙄 well.
Been a bit quiet lately.
Where else would we get our daily dose of destruction!
Hi Andrew, I have a big job on the go at the moment and I guess that I have not shot much video on this one yet. One of the reasons that I have not posted any is that I will be here for while yet and I don't want to give the location away.
Now that was totally cool.
Plenty more videos where this came from.
Happy to see breathing protection! Most people don't understand the long term effects of breathing silicates. NOT pretty. A friend that used to run marathons was hospitalized due to a single exposure to silica dust.. = silicosis. No more marathons. No more running, period! Labored breathing for the rest of his now shortened life. The stuff gets into your lungs as a dry powder. Moisture creates a concrete like mess in all of the little air exchange sacks in your lungs. There is no way to remove it! Now, this mid 20s athletic man is surviving as if he has terminal emphysema. He was an excellent weldor, but now is restricted to only welding where EXCELLENT ventilation AND hot, restrictive respirators are available... and few job sites offer both. AUDIENCE !!! PAY ATTENTION !!! Dust from concrete and rocks can be deadly. Don't do it... Don't allow others, that are unaware, to do it. PLEASE...
You are 100% on the money John, I noticed early on the everybody that I would meet that worked in drilling and blasting had compromised breathing, I started out with just a basic half face respirator, then went to the best full face unit that I could buy and then vacuum the dust at the source also. Sorry to hear about your friend, did he have a very large exposure? is / was he a smoker?
@@demolitiondavedrillandblast He was not a smoker. Very athletic and health conscious. The exposure was a one time, but heavy exposure. Welding next to concrete demolition. Didn't like the dust, but was unaware.., and determined to do his job, no matter what.
Such a shame and a waste.
Inspiring Dave....sure beats scaring horses and killing wasps.
"Is there a law against that?"
@@demolitiondavedrillandblast HAHAHAHAHAHAHAHA !!!!!!!
Can I think about that? phone a friend?
nearly time to go again Dave
Great shot !!!
Thanks for watching
I know there are many variables, but what is the cost difference to the customer for chemical cracking agent VS. blasting?
As you acknowledge, there are many variables but blasting can often be cheaper.
Demolition Dave Drilling and Blasting I appreciate your reply, that makes sense. Every job has its own difficulties and that can make price change in an instant. Cheers!
you must have some super hard drill bits.
I do, they have tungsten carbide buttons - see here - th-cam.com/video/jg83MLOe5Q8/w-d-xo.html
@@demolitiondavedrillandblast wow, good to see some recycling going on, great vids, new sub uk.
That expando is pretty nifty stuff!
Yes, I use a lot of it.
I was thinking the same thing, but what else could it be used for?
Makes a pretty nifty pipe sealant for large diameter pipe threads as well. It's just expanding cement.
@@arnoldskit, Often used to fix holes and cracks in concrete walls/floors where there is a penetration. Its goal is to make a water tight seal.
Is there any blast free technology for metal mines maintaining productivity of Mining equipment. Please answer me. What alternative methods could be used for extracting minerals without blasting
Nothing rivals the cost and speed of high explosives
Nice work. 👍
Thanks 👍
..you have big stones down under..lol.. good job...stay safe
We do Bob, the biggest single piece of Granite I've had to deal with got 147 holes in it between 2,4 and 4.1m deep, with a hole spacing of 1.7m
That Expando stuff does a good job if you've got to be quiet about it, though if you're fully kitted up in PPE I don't much imagine it's pleasant stuff to get on your skin or up your nose. Can you only use it in the open air like that or can you use it in the ground too?
You sure can use it in rocks that are in the ground. Take it from me, it only takes a tiny bit in your lungs or eyes to spoil your day.
Can you describe your extraction system, including brand name
Yeah, the Vac is a Pulman Ermator S26, I have 2 of these, highly recommended. They just sold out to husquana - www.husqvarnacp.com/au/machines/dust-collectors/s-26/967663902/
It is "H" rated (highest rating for capture of small particles) catches 99.99 % down to 0.3 microns.
I also use a cyclone separator in line to catch the big bits. see more video of this here - th-cam.com/video/N-HKpg22sU4/w-d-xo.html
That did it, heat and a heavy rock hammer
G'day Dave again 😂😁
First again!
Can you use the expando on a tree stump. It's 33 inches wide (84 cm?) still green, corner of the yard, impossible to get to with machinery, and grew into rock and chain link fence. I want to split it so I can dry it out and then burn it out....
No, I don't think that this idea will work Joe. If you are not in a hurry you can rot it using Potassium Nitrate. Drill plenty of holes in it and fill them up. Plenty of info on the net.
@@demolitiondavedrillandblast
Well, it seemed like a good idea...
Awesome stuff. Is Expando available commercially, or do you need special permits to purchase or use it?
I’m planning on digging a fire-bunker on my farm (have council permission) in Tassie. Unfortunately, my property is almost completely 1-2m clay ( in places, no clay) over mudstone, which has metamorphosed at a meter or two further down. Would like to dig approximately 4-5m deep, but that would necessitate cutting around 3m into the mudstone. I have most of the toys ( the good ones - demo-drill/hammer, hydraulic-teaspoon as you call them) but don’t wish to use explosives, as I believe it would take multiple shots over many weeks to reach the depth I need.
Expando is just a cement based product, no special know how or permits required - some good amount of care is needed though as it is very caustic and will burn eyes and lungs if you are not careful. For Tassie you will need the cold variant - SCA- 3 and something that will drill 38mm holes, give John a call - expando.com.au/
@@demolitiondavedrillandblast thanks Dave. Found their website about half an hour after my comment ( about 30 seconds of actual googling).
Dexpan is the same thing basically here in the u.s. nice work !!
I was interested in that video 📹
Thanks for watching Liena.
i am curious about why the holes for the expando have a minimum diameter. i am considering using it for a home project but drilling the large diameter holes is difficult. can it be used with 5/8" to 3/4" diameter holes?
Yes, drilling those holes is difficult and I'm sorry 2005 but trying to use cracking agent in holes that small... you would have a better chance of chopping down the forest with a herring
@@demolitiondavedrillandblast but why does it not work?
@@billgator2005 Not enough surface area in the hole for the force exerted.
Rock Man, do you think water would break rock like expando foam or feather & wedges? i've seen engine blocks completely fragment from ice.
I have actually thought about this, drilling holes and putting refrigerant tubes down the hole, it does not get cold enough here to freeze all by itself.
@@demolitiondavedrillandblast I guess that once you drill a hundred holes, it's all relative
amazing content brother
Glad you think so, please have a good look around, about 150 videos now.
stupid question time but ive noticed you sling a leg over the drill to help push it down , could you adapt the drill with a bit of chain in a loop to stick your foot in to save you having to do a leg over ?
Have done that in the past Joe, hard to get enough weight on it though.
how many mm diameter of the drill bit you used
38mm for the cracking agent, at least 2/3 of the way through the rock.
Can it be used in a very wet rock
Yes, if the hole is making water slowly, just mix and have ready to pour, blow the water out with compressed air and a blow pipe and pour immediately. If the water is permanent, e.g. returns as soon as it has been blown out, you must first sleeve the hole with some 40mm plastic lay flat tube and pour into the tube, the very heavy chemical mix will displace the water. You can see me using the plastic sleeve in this video for pouring into near horizontal holes, the same tube is used for wet holes - th-cam.com/video/nWKP7NW3c1g/w-d-xo.html
Can the expanding material be purchased in the Philippines?
I expect so David, there is several different brands, search Expando, Ecobust, Dexpan, etc.
When is blasting called for?
When you can't break it with a machine fitted with a hammer.
I used a product named Dexpan here in USA works the same.
Pretty much the same stuff my friend, probably comes out of the same factory.
Camera was far away and from the side. Could you see what was going on?
No, I could not see, I was well out of the way Jovo
Me -What do you do?
You -Blow shit up....
Me-🤩
You got it RC
👍
I want to blow a rock in a tunnel and I have black powder. Please measure the holes in width and depth ?
Need a time lapse camera to show it breaking 😁👍
Yes! have done one of those but it was a bit of a let down see here - th-cam.com/video/PdaLeO59CAU/w-d-xo.html It is a bit difficult to set up as I need weather protection and theft protection and external power for the camera so not every job is suitable but will have another crack at it ASAP Goz
Put 1 on the back of the truck and take 1 home, do it from home in the shed lol
Hi, where can learn demolition
Dave, ya done good !
wedges would have gotten done that much faster than dexpan and theyre reusable.
I did that many years ago on construction sites. Doesn't work as well on concrete with rebar in it.
What does work well in that situation??
@@demolitiondavedrillandblast An excavator with a jackhammer mounted on it - when it can reach the concrete. If the excavator can't get close enough, do it the old fashioned way - a good man with a 90lb jackhammer. When I started in construction in the 70s, some of the old 120lb hammers were still in use. 8-10 hours in the hot sun with one of those would tire you out a bit, hehe.
@@Grendelbc I have a 100 lb Chicago Pneumatic unit, I'm very familiar with end of day aches and pains, cramps, dehydration etc.
Always hated when the boss got to small of a jackhammer. Never had a 120
Thanks for the video, please if I may ask, what amount of pressure does your drill uses and what's the mark or brand of the drill please.
7 bar or 100 PSI @ 110 CFM, Indian made RH658 copy by MDS.
what dust extractor are you using? need a setup for my mini x mounted drill
This one - www.husqvarnacp.com/au/machines/dust-collectors/s-26/967663902/
Recommend you also use a cyclone separator between your drill and vac.
@@demolitiondavedrillandblast OK thanks i actually have that same model for my Soft cut saw new even thought i could use it for the rock drill. how are you directing the cuttings into the hose? what size do you mostly drill i usually drill 45 and 48 mm holes for a Darda or expanding grout. do you have a pic of your cyclone separator?
@@Nuccioconstruction OK, Please email me for more info and pictures - dave at demolitiondave dot com dot au - For pick up at the hole I use an inch and a half or for 45&48mm use 2 inch gal pipe tee piece, there are many cyclone separators available on Ebay these days, get one the uses 2 inch hoses.
Think you could use this method to form a door skin for an Aston Martin Dave?
Yeah, worth a try, we could do it in your pool!
What is expando
Expando is similar to dexpan and ecobust and other similar products, looks like cement powder, you mix it up with water, pour it into the holes and it expands and cracks the rock. - www.expando.com.au/what-is-expando
Does the explosion or the implosion break the rock?
The explosive breaks the rock with a massive shock wave and the chemical cracking agent slowly expands and splits the rock.
what Implosion? that is a explosion the expansion of gas, not the collapsing of it, there is a huge difference between the two.
Is this article suitable in the basements and tunnels where there is no empty space ??
It works best were the rock has a free face and has some space to move.
@@demolitiondavedrillandblast I want to blow a rock in tunnel and i have black powder. Please measure the holes in width and depth ?
Go to super cheap and get yourself a radiator filling funnel
Holds about two litres or so has built in stopper
And cheap
I went down there today, the exit hole is too small and the compound will build up and set in there very quickly Rodney.
What’s cheaper, liquid breaker or blow it up?
Blow it up - a lot less drilling for similar amount of breakage
Thought so 👍
That Expando stuff must be dangerous to mix if you have to be all PPE covered?
Drop in Storm water pits can it get any easier for plumbers?
Hi Mark, it has a lot of quick lime in it and some other nasties and believe me, you do not want even the smallest amount in your lungs or eyes, full face protection is not being overly careful.
@@demolitiondavedrillandblast I think I could make an expando equivalent Dave?
@@rexjames0015 Not sure it is worth it Rex, if you buy direct from China it is very cheap.
@@demolitiondavedrillandblast WHO?.....are shit I soud not say that WHO are mates with china
Plz give. Me chemical name thank u
Expando, Dexpan, Ecobust, Bristar, Betonamit, and many more brands.
2:37 Why this man in mask? Used "novichok"?
Granite dust! kills slowly.
Gasmask??
Very good lung and eye protection - stone chips in eyes and stone dust in lungs is not good.
Just imagine if you will. A super hero or villlain similar to plastic man with the powers to break solid objects by expanding. If you called him Expando, would there be a copyright issue? :D
Probably not Mike.
@@demolitiondavedrillandblast Thanks.Hmm..,Now if only I could actually draw. He would need an arch nemesis or two. Demo-Dave or Master Blaster have a nice ring. I'm also thinking a rock people army. Whatcha think? :D
Mate, thought you might like to know the rock Rhyodacite is pronounced rye o day site.
Thanks, got that Stu.
why the gasmask?
Three reasons Simon, despite using a pretty good dust collection system, you never get it all and any amount of stone dust in your lungs is very bad news, secondly in order to extend the working life of my drills I introduce a lot of oil into the airline, this is not good in my lungs. Thirdly the full face protection keeps all of the stone chips out of my eyes - this is a constant issue when using a rock drill and safety glasses alone do not prevent all instances. The mask is also an excellent protection when mixing the chemical cracking agent - this product has a PH of 14 and will burn your eyes and lungs.
no real improvement in technology over the last 200 years?
no high tech ultrasonic drill or laser thermal shock boring device?
no hydraulic wedge system to replace the hammer ones or the expando?
No, no, Bruce, there is the Darda hydraulic splitter, I've never made enough money to buy one of these tools, my friend Yuriy Pchelintsev has heaps of them - th-cam.com/video/7Y_wf6NSdH8/w-d-xo.html
How much time you got to mix and pour
As long as the water is cold you have plenty of time, but if you leave it sit in the bucked it will melt and catch fire in time!
Sir, can you share the formula?
As I previously said, I do not make this product, see - expando.com.au/
🦜au - G'day Dave - Remember how they split rock in ancient / Roman days .
they put wooden dowels in holes keep dripping water on wood expands & cracks
You should do a video on this drill a hole & put a long wooden dowel down it with a bottle dripping water 💦 experiment
Should make quite a good video time lasp cam needed mate! cheers
I think that would be too slow for me to tolerate Mark
👍👍
I wanted to watch it split open 😂
Try this one then - th-cam.com/video/PdaLeO59CAU/w-d-xo.html
Demolition Dave Drilling and Blasting : Very satisfying, I’m in the wrong job 👍🏼
@@PaulNurse1 you could change jobs, I did. I came from a high tech service industry job, possibly similar background to you???
What explosive do you use;
Mostly Orica Packaged Emulsion and ANFO
Made easy if.......you already own a trailer compressor and drill and a military grade gas mask and have a license for explosives. You need to make a video for easy rock breaking and the whole video is someone making a phone call to you and then writing you a check. :))) That’s the easy way.
There really is nothing easy about breaking rocks Brent.
@@demolitiondavedrillandblast I’m glad you enjoy it! Have a good one, my friend.
Beleza 👍👍😎
Gracias por mirar, dale me gusta y suscríbete Francisco
Nice!!!!!
Thanks for the visit
💚👍
Thanks for casting your eye over my work Robert
Drill ye tarriers drill!
That’s not what she said
th-cam.com/video/OGNrvmaxe8c/w-d-xo.html Where is Pyro Paul when you need him?
Call the Egyptians and it will be gone like ant's
Get me some Egyptians.
th-cam.com/video/Cmo9MQ3pPF0/w-d-xo.html
Weak af 🤣 ill take my anfo and 350gr. Boosters any day
Post some video of your work Ricky.
th-cam.com/video/2suW1kgiw-0/w-d-xo.html
That works well when you get it right, they need much more vacuum though.