Breaking up basalt rock with Expanding Grout 

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When I bought my mountain house, there was a "leftover" rock that had been shifted from somewhere under the house and left there for 20+ years. A Geologist said it was 32+ tons of granite. It was too close to the back of the house to blast. No one wanted to move it as it could have gotten away and rolled 400ft down the mountain into some homes below. Six hours with a big excavator with a bull-prick did little. So we used Dexpan.... the hardest part was drilling all the damn holes in granite. We poured it, tarped it, weighted the tarp down and by dinner time we were hearing it cracking. End result was I got 30 tons of cubed granite I used on a lift wall for a road I built behind the house.... and the big rock is no longer an eye-sore. Expanding grout is an amazing product.

That excavator operator is top notch! He cleans up his work area as he goes and he is as gentle on the machine as he could have been while still doing a difficult job. Well done. 10/10!

I’m just an old lady but I love these videos and wish I had learned more about this kind of work when I was younger. Thanks for posting these and sharing your work.

A couple of minutes watching that last guy work, it's plain enough to see why he's your favourite operator.

Thanks. I bought some expanding grout about 20 years ago. I couldn't get it in Australia and had to buy 20kgs from the USA. Need more, glad I found this video so I could find an Australian supplier. I don't want to try to remember how much the stuff sent from America cost me.

A few days before this video, I was in need of some rock breaking. I started going through the videos and then you gave us this one. I've watched it 3 times now I believe, all because I like a happy ending! Enjoy watching how you treat the rock and watching the dig out! Thanks for the education and entertainment! I wish I had audio looped together of the rock cracking. I find it soothing.

digging out the rock is like watching a house of cards fall, pick the right rock to move and the whole pile collapses

I love that thump the hydraulic splitter gets out of the rock when it lets go. Thanks for another ripper vidio.

It's nice to have you back, Dave!

Developer should send the whole row of home owners on an extended vacation and let you use some fairy dust. Dave, thanks for taking us to work with you.

You definitely have a talent for breaking rocks. Seems like a lot of Australia is covered by basiltic lava. You never need to worry about running out of work mate.

That was really cool, I had never heard of that expanding goo stuff before, and that hydronic splitter reminded me of a tree root slowly breaking the rock, but instead of years, it was moments.

it's so good to see someone actually use proper PPE to protect against silicosis

Thats alot of Expando! Glad you got all of the excavator action in this video!

Beauty, Dave's back.

"Breaking News" Daves got another great video!!!

I could watch broken rock being ripped out all day 😁. Thanks for the bumper episode.

Watching those boulders 'POP' with the hydraulic splitter is almost as much fun as the explosives!

What a load of goo! I looked twice to make sure that was Kev, right as you thanked him. It’s been a while since he’s been on a video as your assistant. It must have been great to have a hand pouring all that stuff!

Good show! Thanks for taking us along.

When I was building houses, I'd tell Karen next door that "no one complained when we were building your house" lol.

The breaking is nice, but what intrigues me the most is the existence of those rocks. It is so alien to me. We don't have them here because nature does the same expando-magic each winter.

Welcome back Dave and a great video 👍👍

The Expando is amazing stuff! Watching the hydraulic breaker is mesmerizing! Seeing the big iron ripping the rubble out great too! Thanks for sharing 🇨🇦

Good to see you well Dave! Thanks for another fantastic video. I get so much mental health benefits from your videos watching you blast, and dig rocks out. Honestly it's a form of therapy for me. Thank you again and keep up the good work!

We miss you Dave !!!!

Glad to see you are safe and well. Excellent entertaining video.

Dave you may have not been playing with your bangers on this job, but still a banging good job!!

This is a way to look forward to Monday! I've been waiting for a be video, glad you're back..... guessing you've been busy! 🍻 cheers Dave, great job!

That "neighbour" probably had to put up with noise for longer with your drilling and multiple visits from the excavator than if they had just let the breaker work for a day whilst they went to the races!

Nice to see you back at it Dave.

Hi Dave, Good to see again! I'm betting you've been very busy! That one cranky homeowner put you to work for a couple of weeks. Amazing how the goo reacts to hot rock! Glad you're being extra careful in the heat! Great video as always! Thumbs up! Stay safe. Jim

We used a similar method in the 1980's to take out a foundation in the city but rather than a mixed liquid product we used a plug which was the same size as a plaster gel plug called "silent explosive". We dropped the plugs into a bucket of water for five minutes then into the holes and walked away, 15 minutes the foundation broke up.

Thanks Dave Every method you use is granite surgery😂 I always enjoy your videos. The hydraulic splitter sounds like breaking candy😂😂😂.

Brilliant your back greeting's from Wales uk

I love seeing that nose picker excavator tool.

thank you for the video dave good to see it !

The noise from this site must have been a nightmare for those on the other side of that fence!

Dave come back.... we miss you! 🙂 Hope all is well my friend, just wanted to drop in and say Hi!

Love the videos, bro 👍 Respect from UK

A lot of holes in that one Dave. I guess that is why there are bluestone quarries at Wollert. Good job in the end. There will be more work when they start building houses.

Hey Dave, Another great video, You sure put a hurt on those rocks. I hope all is well. Thanks for sharing the video.

Glad to see you again. Thanks for the video

I've never heard of such a grout! That's sweet!

Bloody good job, Dave!

i noticed paper with a piece of rock on it a couple of times. is this to remind you when you filled the holes?

Never seen a hydraulic rock breaker or expanding grout, but they sure works great

Awesome work !!!!!!

The foundation of those houses is on that same outcrop. They're close too. If they broke all that rock up with a big breaker it would have shook them apart..

I'm always impressed by how well that "goo" cracks the rocks, when left for a couple of days. Would love to know how it expands sideways and not just out of the hole. interesting chemistry I think.

MM77 Approved 👍🏼👍🏼……………………………………………………………….I’m always amazed how well the cracking goo works.

Trenching along a footer, fantastic idea.

Great job and awesome video as always.

Pick n sledge get thru that. Good to see u. Enjoy the day

g'day Dave, i've been thinking you must be busy or on holidays. another great video.

Nice to see it is cooling off down there, so you can do some rock work. It is warming up here in the states, so I can start splitting some boulders tomorrow. We just got a foot of snow. As usual, thanks for entertaining video. Mental note to self- don't come back in my next life as a rock bucket. Always nice to see the fence flex, makes you wonder how they got the posts in. Cheers.

What a pain in the back side.

Great to see you again mate. Have missed your videos. How’s the weather. Be safe

Love that blue stone. Part of Melbourne's history it is.

I've been in the industry for a while. Never seen this product. Ill remember this

Thx Dave, greetings from the Netherlands 😊

474 👍's up demolition Dave the most explosive man on RU-vid thank you for sharing 🤗

Neighbors… that’s why I own the vacant lot next door.

I can only imagine drilling that many holes, of that size, with hand equipment.

an amazing amount of work to build a house.

LOved the Video Dave! Keep Em Comin!

That's like the rock that just kept on giving and giving...

Lot drilling - lot of rock - lot of Expando!! Some good results though nuisance with ejections. The hydraulic is certainly fascinating to watch... such huge and impressive force. :)

Your a rockstar mate!

Some neighbours need a little anfo in the morning. Me, i like the headache from gelignite.

Just love that rock pop

Hi Dave, as usual your work is everything it's cracked up to be.🤣🤣

It would be nice with a video were you show us how you think when making a drill pattern. 😊

As I watched this video, I was thinking that a smart excavation company would have a rock crusher onsite to take advantage of the free aggregate.

in all your videos i cant belive none of the excavators have a thumb

Superb work Dave. Bloody hard though 😂😂

Makes me wonder how that wooden fence is standing up, it's not like that rock stopped at the fence line.

Love the videos, keep up the great work.

What's on the pieces of paper - Expando information?

With the orange coveralls, you two look like prisoners.

"Cracking Goo" is such an Australian product name.

Dave. Love your Chanel. Why don’t we see more of the hydraulic wedge splitter? That’s fantastic.

Interesting! I'd never heard of this before

good job dave

When we see the réaction of the neightbourg, we can conclue that you have some balls breaker in Australia too !!! 🤣🤣

Another cracking job ! 👍

Expensive job.

first time I have seen that. very clever. But, wouldn't it make loud cracking sounds? wouldn't this keep the neighbors up during the night.?

You can also pour water down the hole and then liquid Nitrogen after and it will split the rock much faster...

I understand your attention to detail and professionalism is absolutely paramount in your career, Have you ever had any premature detonation of your “medicine”. Not mistakes but caused by factors outside your control.

Do you think dropping a little dry ice into the holes to cool the rock down might help?

if i was the construction crew i would have just kept goin lol

Beautiful

I'm all for keeping neighbor happy, but there's no way in hell I'm buying all that expanding grout just to pour it into the ground. Would of been cheaper and easyer to just put all hand on deck and get it out in 1 day the old fashioned way. They can deal with it for a day.

G'day Dave great video mate

Great video! 👍

That was certainly an all out (B)assault on that rock, mate.

Honestly featger and wedges or wood and water an boom pop

Howdy demo Dave