Multi method rock removal on a domestic home site near Mansfield

More careful rock breaking on a domestic home site. This time the home construction is well underway and there is a very hard rock up close to the new concrete slab that has to go, the excavator mounted breaker was not effective, the demo saw and operators have worn out and explosives were not welcome this close to the house. That leaves Expando - Expanding Chemical Cracking Agent as go to option for cracking up this large and very hard rock which was followed up by the excavator mounted breaker. Other rocks further from the house were managed using explosives.
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[@andrewallason4530]

Great job. Again. Your “lipstick” comment about your demo hammer vs the excavator breaker reminded me of when I bought my mini-ex (with no prior experience of using one, just general farm and construction equipment use), it came with a ripping-tyne shaped much like a bucket tooth but fatter. After a couple of YEARS using it, and frequently, and eloquently, expressing my displeasure with it’s performance, I had the machine in for a major service at Komatsu and they recommended I replace it. I said “oh, it’s not supposed to be like that?” and he laughs, goes out back a few minutes and returns with a piece about 15cm longer, that represents a two toed ostrich foot with the toes about 10cm long. Turned out mine was worn down to just the socket. Works MUCH better now.

[@demolitiondavedrillandblast]

They can where out surprisingly quickly in some material Andrew

[@andrewallason4530]

@@demolitiondavedrillandblast too right. I went through a whole nearly brand new tyne in one job, a couple of years ago.

[@art1muz13]

0:07 ARE THERE LIONS, TIGERS AND BEARS, OH MY??!! GREAT STUFF MR. MAN BEHIND THE CURTAIN.

[@user-qy1zc4rh4w]

Thanks Dave . That new drill is so powerful😊😊😊you turned those big boulders back in to sand😂😂😂.

[@cormackeenan8175]

Dave you’re a rock star!

[@demolitiondavedrillandblast]

Thanks

[@sirskidney7998]

Nice job, Dave. Hard to fathom how one rock on that block could be so much harder than the rest? Many thanks for the video.

[@demolitiondavedrillandblast]

Happens surprisingly often SS

[@kenore4003]

Metamorphic rock can be made up of assorted clumps of different materials that have been partially melted and compressed under great pressure, so there can be differences.

[@brucet8551]

im glad drill the wasnt damaged.i had that happen to a jack hammer and it destroyed the anvil.thanks Dave for the video.

[@demolitiondavedrillandblast]

I was a bit concerned that my new drill had quit.

[@Ekaern]

Once again dave has another work break video to watch, Keep them coming!

[@demolitiondavedrillandblast]

Will do Richard.

[@user-qy1zc4rh4w]

Thanks Dave . That new drill is so powerful😊😊😊

[@demolitiondavedrillandblast]

It sure is Mark.

[@davec7076]

You rock Dave! Thank you for another great video. Please keep up the impressive work.

[@demolitiondavedrillandblast]

Thanks, will do! Next video will feature my hydraulic wedge splitter... probably unless another short video sneaks in first.

[@user-wu7sn7ml7v]

Thanks Dave. That red drill sure puts a beating on drill rods.I will try to get some of that cracking goo now that I have seem and heard the safe way to do It.

[@demolitiondavedrillandblast]

Glad to help Mark, the expanding grout is sold under many different names around the world, where are you?

[@demolitiondavedrillandblast]

Oh... now I know where you are, get yourself some Dexpan from Shawn Patton, Dexpan Canada, True North Distribution Group

[@user-wu7sn7ml7v]

@demolitiondavedrillandblast Thanks Dave My trench will be two feet long from the sump pump to a drain.LOL. THIS IS MY SKILL LEVEL.

[@trashanken]

Really cool Demolition Dave!! in Sweden we call the expanding chemical cracking agent: "snigeldynamit" = snail-dynamite ;-) Dynamite with the speed of a snail ;-) Cheers!

[@demolitiondavedrillandblast]

That is a very descriptive name for it.

[@swishswish386]

You are the man Dave ! As always, love your work 👍👍👍

[@demolitiondavedrillandblast]

Thanks for watching and contributing.

[@macw2234]

Great video excellent soundtrack thanks Dave

[@demolitiondavedrillandblast]

Thanks Monty.

[@grumpyg9350]

I see you tidy up the site after blasting, but wonder if the fuse is something that degrades quickly if left the dirt, with time? Great editing and loved the drill repair.segment. 👍👍👏🏻👏🏻

[@demolitiondavedrillandblast]

I'm picking up all of the spent plastic signal tube and surface delay clips as it has become a bit of an issue.

[@rockman531]

Hi Dave, Good to see you again! Hopefully you've been busy! It's amazing how well that expanding goo works even in the colder temp's! Question: Why are you picking up the blasting wires? Don't remember you doing that except for the last one or two videos. Thumbs up. Stay safe. Jim

[@demolitiondavedrillandblast]

I'm picking up all of the spent plastic signal tube and surface delay clips as it has become a bit of an issue.

[@ralphdeemie4916]

Stay warm,great job!!!

[@demolitiondavedrillandblast]

Thanks Ralph.

[@eddiekilby]

Always like the cracking goo along with plugs and feathers. 👍👍👍👍👍👍

[@demolitiondavedrillandblast]

Me too Eddie, I'm hoping that one day soon I will get another Cracking Goo job where I can set up the time lapse camera again..

[@westvirginiaridgewalker]

I love your videos! Thanks again for taking the time to create them!

[@demolitiondavedrillandblast]

Thanks for tuning in Eric, more coming soon.

[@kevdimo6459]

Nice job again Dave. Except for the distance to the worksite that looked like a fairly fun job.

[@demolitiondavedrillandblast]

Yes, that is 2.5 hours on the highway

[@paulcooper2897]

Quoting Zeppelin!!! Or maybe Nightwish?! Thanks for sharing 🇨🇦

[@demolitiondavedrillandblast]

Not intentionally, which line are you referring to?

[@ohhpaul7364]

Had the new kid do that to a very expensive hammer drill one of the first times he ever used one. He didn't know any better. I said leave it for later and I will fix it at home. He and boss tried to "fix it", took an angle grinder, they somehow found, and cut the chuck apart in layers until they got to the center. I walked up to the head in two pieces, cut off the drill, with the bit still stuck in the one piece. I hate working with people who recreationally do drugs for fun all the time, things happen like that all the time. Couldn't even buy parts for the $600 drill anymore, so bought a new one. thanks for reminding me of the anxiety of that day, in a better place now.

[@demolitiondavedrillandblast]

Oh... Paul, I hear you, I had a guy helping out with drilling on a project. I had to re train him every day!

[@RogowskiBubba0864]

Hi Dave 😊 Greetings from the Netherlands

[@demolitiondavedrillandblast]

Hey, thanks for tuning in Arie.

[@scotthultin7769]

162👍's up Dave thank you for sharing

[@demolitiondavedrillandblast]

No problem, thanks for watching Scott

[@gordonormiston3233]

Pretty tough rock to cause that amount of pinning over. Either that or drill bit loosing its temper. Thanks for letting us into the negatives of your occupation. Great to see the problems you encounter and how you overcome them. Happy drilling. 🐻

[@demolitiondavedrillandblast]

oh, I encounter plenty of problems, maybe I should video more of them, bit difficult though as I usually have to think hard and solve quickly to keep the job moving, not much time to make video.

[@ChrisB257]

Heck - that drill rod sure peened over a lot... glad you managed a fix. Looks like a real nice view from that spot. Goo, boom and hammer - wins the day :)

[@demolitiondavedrillandblast]

Yeah, never had that happen before Chris.

[@kat2641]

Super nice job done ❤

[@demolitiondavedrillandblast]

Thanks Joe.

[@jakepekarik7772]

🔊💥👌Good video Dave, Thanks for posting!!!!

[@demolitiondavedrillandblast]

Thanks for tuning in Jake.

[@cosmopezzolla996]

Great job Dave!

[@demolitiondavedrillandblast]

Thanks for watching CP

[@tugboat2739]

Howdy demo Dave

[@demolitiondavedrillandblast]

Howdy dooody Tug Boat, thanks for tuning in again.

[@dennis2376]

Glad to see you back, I was having with drawl systems. :) That rock were you repaired the jack why was there rebar, another older house? Thank you and have an awesome week.

[@demolitiondavedrillandblast]

That is a question that I also meant to ask Dennis.

[@amandagardner565]

g'day Dave, i was thinking angle grinder when i saw how bad the rod was peened over. i just got a 5" cordless from Aldi, i got the tiny 3" job a few years ago because it was marked down 50%, thinking it was a toy, turned out to be so-so for cutting, but is my go to for deburring, it's a ripper, i hope the bigger one is as useful.

[@demolitiondavedrillandblast]

Good idea, I need to get myself a little battery one, think I had better get one before the end of financial year

[@amandagardner565]

@@demolitiondavedrillandblast hell yes, you can never have enough legitimate business deductions. i have a dozen Aldi 20Vdc batteries, so am amassing a decent collection of their tools, the blower skin is magic for cleaning the shed floors (gotta wear a mask for the dust though)

[@jwaterous224]

Hi Dave, do you experience any slow traffic there? I call it Rush Hour. We're into road construction season here in the TwinCities! The other season here is Winter. Just wondering since you refered to the over two hour drive home. Very interesting your rock descriptions and a fine job of fixing your new hammer!

[@demolitiondavedrillandblast]

Hi JW, this job was a very long way out of town, 2.5 Hours @ highway speed.

[@MrLargePig]

That drill rod peening over like that- what do you reckon? Chinese metallurgy? Maybe the newer drill just has a harder hammer? Just strange that you've never seen it before. I hope it's a one time thing, and not an indicator of future problems...

[@demolitiondavedrillandblast]

No Chinesium here this was a premium Swedish rod, new drill definitely hits harder.

[@cleanmachine08]

Curious if there is any data for how this sort of geology impacts build cost. Some of that rock looks very hard!

[@demolitiondavedrillandblast]

It ups the cost a bit but something like this is insignificant in the over all project.

[@Dan_Hall]

For a 7 X 16 meter excavation for a homesite foundation. How much clean fill do you usually plan on having on hand for cover? 2 truckloads? Thanks!

[@barrymccockiner6641]

With the expando goo after a few days, would some light motivational tapping help relieve some stresses and get more cracked?

[@demolitiondavedrillandblast]

Possibly Barry.

[@alfadoofus]

Nice one .

[@demolitiondavedrillandblast]

Thanks.

[@thurmanwalker3298]

Can mention sometime where all the rock ends up? Find it hard to believe there is a rock crusher that can handle that hard stuff. Colorado USA

[@demolitiondavedrillandblast]

Oh yeah, rock crushers work real well, very high wear and tear though.

[@thurmanwalker3298]

As hard as that rock is, did not know. Thanks

[@littlehills739]

while ur drilling do u get to zone/ zen out, for few min to just be a peace or is there more to it?

[@demolitiondavedrillandblast]

Yeah, a little bit, it does pass the time very quickly.

[@Tiger351]

Harder than a cats head 🤣 I'll have to remember that one given my boofhead ginger like to headbutt you in the temple to wake you up 🤣. Looks somewhat similar to the grey sandstone we get in NSW, finer grains and highly compacted, it does break pretty easy once you can get it to fracture. The piston in the new drill must be harder than the drill rod (or the drill rod is just past it) looks like it wore through the case hardening and started beating up the the softer parent material.

[@vsvnrg3263]

your opinion on what happened with the new driller and the old drill end is what i was thinking.

[@demolitiondavedrillandblast]

I think you are onto it Robert.

[@tiredoldmechanic1791]

Why are all the excavator mounted breaker attachments flat on the end? Do they start out pointed or chisel shaped and just wear down?

[@demolitiondavedrillandblast]

They start out as a nice sharp chisel and when you try and break hard Granite they look like and old lipstick after 2 days work. facebook.com/demolitiondaverockblasting/photos/pb.100057302897627.-2207520000./1864545160385110/?type=3

[@RolandElliottFirstG]

I think the ends of those drill rods are case hardened, if the case hard section fractures then the softer steel underneight will very easily deform.

[@demolitiondavedrillandblast]

I was thinking that the surface had work hardened in a different drill and now it is all of a sudden getting hit a lot harder in this drill??

[@RolandElliottFirstG]

@@demolitiondavedrillandblast The ones I have had in the past when I cut one up it was case hardened on the top region, from memory it seemed to run at least half way down the shaft, if this is the same as your ones then most definately if the case harden section became fractured in some way the the softer steel under it would be soft and splay out.

[@tda2806]

I wonder if this stone is a little like Bath stone, as it dries it becomes harder to work.

[@demolitiondavedrillandblast]

I think it was just a hard sandstone Tim.

[@nathanielmcginnes8592]

Is that bitomite your using for the expanding groute?

[@demolitiondavedrillandblast]

The one I'm using is Expando - expando.com.au/

[@1010tesla]

Are those drill rods expensive? How much is a good quality drill? I guess it depends on the type of rock as to how long they last.

[@demolitiondavedrillandblast]

For the 1200mm rod and drill head is about $190. For sure, if you are drilling mudstone the drill heads last for ever, Basalt, a very long time, Granite, about 60m, Rhyodacite about 30m at best.

[@andrewclarkehomeimprovement]

Hi Dave. Hope you're well. I've noticed over the last couple of videos that you've started retrieving the det cord after the shot. How so?

[@demolitiondavedrillandblast]

I'm picking up all of the spent plastic signal tube and surface delay clips as it has become a bit of an issue.

[@andrewclarkehomeimprovement]

@@demolitiondavedrillandblast regulations never get fewer do they!

[@littlehills739]

15:00 could u blast that close or would u risk the slab cracking or settling wrong ? vid on the air raid siren and low level rules regarding your job ?

[@demolitiondavedrillandblast]

It it were my house I would blast it without a second thought, however the exact methodology would be very particular.

[@Hutch400]

Hey Dave, may be a stupid question...how do you determine what hole fires first? How is it actually accomplished?

[@demolitiondavedrillandblast]

The opening hole is always on the edge of the rock and you try to chose an area that has a vertical face that is parallel to the drill hole so that the burden that this hole has to move (and the explosive load) can be easily calculated or estimated. The next hole can then push its broken rock into the void made by the first hole and so on.

[@Hutch400]

@@demolitiondavedrillandblast thanks Dave, got something more to watch for!

[@keithmoore5306]

hey Dave you come over to the states to work and don't tell us? mansfield is about 50 minutes south of me i'd helped you drill if i knew!! seriously though wonder how many places there are named mansfield worldwide?

[@demolitiondavedrillandblast]

Google knows I'm sure Keith.

[@keithmoore5306]

@@demolitiondavedrillandblast google says 25 but i'm sure there's got to be more than that!

[@lancemillward2462]

43 holes beautiful

[@demolitiondavedrillandblast]

Thanks for watching Lance.

[@cosmopezzolla996]

You are a drilling machine Dave! I can't tell from the videos, so you ever wear anti- vibration gloves. There a bit expensive, but i don't do without them anymore. Has definitely cut down on the bruised palms... it's basically like cheating 😂.

[@demolitiondavedrillandblast]

I use just regular leather gloves but I always put Armaflex on the drill handles www.clarkrubber.com.au/products/33887p-pipe-insulation-33893?gclid=CjwKCAjwmbqoBhAgEiwACIjzEBO1VUVpCXZMZFBznG2Iw6e-cHcmELBS-BjBV50Pl_KxhHm3t56QHRoCglEQAvD_BwE I never get bruised palms, what type of drill are you using as this has a lot to do with the user fatigue.

[@cosmopezzolla996]

@demolitiondavedrillandblast APT 155 is my main drill...I have rented Toku and the APT ran circles around it. I have never had an opportunity to run the CP. What drills are on your do not use list...

[@demolitiondavedrillandblast]

Oh.... you have an APT 155 - congratulations! I understand that they are a remake of the old Thor 75, which had the reputation of being "a mans drill". Generally heavy drills with a long stroke are easier on the user (apart from the weight), and if you find them a bit of a handful you can just drop the air pressure a little and they will still out drill the lighter drills by a fair margin. I wanted to buy a 155 but it was cost prohibitive compared to the CP69 direct from India. The CP69 is a very good drill and very similar in many ways to my all time favorite - the ol Holman Silver Bullet (1955 model). list of bad drills... any light, short stroke (high frequency) drill. Probably the worst I have would be the Holman Silver 3 - what a shocker. I have numerous Atlas Copco RH658's and copies, they are probably the best mid weight drill ever made.

[@cosmopezzolla996]

@demolitiondavedrillandblast I remember you talking about that drill (the silver bullet)! Thanks for the info on the drills and the great idea about padding the drill handles.... that would cut down time taking gloves on and off! I look forward to talking on the next video! I always try to leave some comment to help your channel!

[@no_nuts]

Harder than a cat's head? What is the Rockwell scale for that?

[@demolitiondavedrillandblast]

Do you have a cat and a Rockwell tester?

[@SJR_Media_Group]

Dave.. you most definitely have Job Security... Granite is in your future..

[@demolitiondavedrillandblast]

And they will make my tomb stone out of it.

[@SJR_Media_Group]

@@demolitiondavedrillandblast Yes indeed, Granite lasts forever. Just put a Granite headstone on my parent's grave.

[@Jcreek201]

Man, so many of your jobs are so far from home, I'd start factoring in lodging costs to your bids. No way I'm commuting 2.5hrs+ to a job site every single day.

[@demolitiondavedrillandblast]

I often do #201 however overnight storage of the goodies is an issue that makes travel home a necessity on blast days.

[@Jcreek201]

@@demolitiondavedrillandblast Ahh that makes sense, hadn't thought of that. In that case, start billing them for a helicopter charter to/from the site each day! 😄

[@rexjames0015]

Dave, want a cheap Chinese log splitter or 4? same result as your drill !

[@demolitiondavedrillandblast]

Oh no... was it made out of high tensile bamboo?

[@rexjames0015]

@@demolitiondavedrillandblast May have worked better made of bamboo Dave.

[@demolitiondavedrillandblast]

The other material they use a lot of is chrome plated Plasticine.

[@billdoodson4232]

Just wondering, how much does it cost for your " goo" per kg?

[@demolitiondavedrillandblast]

AU$160/20Kg box + GST + Freight.

[@billdoodson4232]

@Demolition Dave Drilling and Blasting A quick in the head calculation says about £5.50 a kg, so not cheap. I assume that you don't need a licence for it. Cheers Dave.

[@demolitiondavedrillandblast]

No licence required Bill

[@jasethesmiff5683]

Answers the q i asked earlier

[@jasethesmiff5683]

2.13.... a lot of pitting on the top

[@demolitiondavedrillandblast]

You would be too if you were treated the same way Jase.

[@frozenjoe6313]

I had heard from someone a while back you have had about 9 separate compressors stolen from you.one after another. There are some very cheap tracking technology's available and its effective. Not sure, but I think there is even a cell phone application you can operate yourself. You could find your stolen compressor and then have the police maltreat and arrest them.. Having a compressor stolen is a big financial hardship.. and in many countries the thief might get sent to prison for 10 years or so.... In some of the united states it would be lawful to defend your life and your property with deadly force. And citizens do so at times. Personally I dont want to use deadly force on anyone unless it was a him or me situation.. . Have the police do it. Less trouble for you

[@demolitiondavedrillandblast]

I have owned about 7, had 2 stolen within 14 months, I was a real kick in the guts.

[@frozenjoe6313]

Hm. Not so good. I dont know if its legal in Australia , But Amazon here in the U.S. has tracking devices That work with a phone,used to tag and track expensive stolen equiptment. and they only cost 15. dollars or so... Offhand id say you need at least a few,, and they work anywhere, unlimited distance .. There is a wide variety....... but with all the electronic tracking being done for covid and tracking phones it might be a conflict.. Years ago. I had parked my truck lawfully in the middle of a blinding snowstorm and went into a huge apartment complex, to see friends ,Almost whiteout conditions ., The police found me in about 2 minutes... Thats kinda scary. maybe I should destroy my phone and go to a underground bunker in the mountains..... . Make sure you use 2 layers when making a tinfoil hat.

[@aquilaaudax6033]

✋🏼🇦🇺👍🏼

[@demolitiondavedrillandblast]

First!

[@davidholder3207]

Any snow at Mt Buller Dave? I know that in May 2008 we went to Lake Mountain near Marysville and had a big day in the snow. I ponder also why there was rebar in the rock that cocked up 'yer hammer

[@demolitiondavedrillandblast]

The bar - That is a question that I also meant to ask. I'm sure Mt. Buller is cold enough for snow having worked there in May / June in the past - kzbin.info/www/bejne/eqOsmI1smtRkesk

[@Damian.wagner]

Feel like you have jobs where you can use the good explosives and you have a lot of throw and you have jobs where you use the goo cuz you need to crack The Rock but you don't want any throw.. have you ever considered using a little bit of gun-cotton or nitrocellulose and just electric match.. I've done a lot of hard rock prospecting and that's what I'm stuck with.. here in the US I can't get in explosives license because a criminal record.. my knowledge and explosives comes from before I had criminal record.. but now the guncotton is just kind of a gray area.. it doesn't do the job anfo.. and if some of the places I end up needing Rock moved is above my head because I'm usually in an old mine shaft a couple hundred feet or at least a mile underground.. sogou doesn't work because I work in wet environments and drilling a hole in the ceiling and putting goo in doesn't work.. no good way to keep it from running out of the hole.. but my drill bit is also you know half and or 10 m m.. and the longest drill that I have is about 8 ft.. A meter is 3 ft 4 in so almost two and a half meters.. the most I end up putting into hole is for jumbo cotton balls.. that have been treated one of like four different ways but the actual is nitrated with nitric acid.... I usually make my batches for the year in the winter time and bats to me is about 50 lb and I normally make five or six batches.. and then I'm good for the year..

[@demolitiondavedrillandblast]

Managing the throw is pretty strait forward, it is usually the vibration that is the main concern. I would not be trying to make nitrocellulose but I have done more than a bit of work using smokeless powder like you use for reloading bullets. Thanks for watching Damien.

[@frankpristov9745]

Ok second

[@demolitiondavedrillandblast]

The early bird catches the worm... but it is the second mouse that gets the cheese.

[@frankpristov9745]

@@demolitiondavedrillandblast Never heard that one before thanks. About the drill bit maybe a 3mm chamfer on the drill end might prevent this problem

[@jackharrison2785]

was the rod made of shit chinese steel

[@demolitiondavedrillandblast]

No, this was a very expensive one that is made in Sweden, but it has done years and years of work, I have had the cheap ones break even before the paint is worn off!