Non Explosive Demolition agent Expando

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Post  canadian John on Mon Mar 19, 2012 4:17 pm

Any One tried expansive mortar to break rocks?
Ive used it many times and havent found a rock yet that it wouldnt break.
Soft rock like sandstone cracked over night hard rock like granite or basalt took 2-3 days to break.
You drill holes from 28mm to 40mm mix the powder with water pour it down the holes and wait for the cracks to start.
I feel that Im a bit of an expert on this stuff so if you have any questions ask me
Canadian John

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Non Explosive Demolition agent Expando Empty Hi from Neale in Biloela Queensland

Post  shelby23 on Mon Mar 19, 2012 4:48 pm

Hi
Q. As they say, Where do you get it!

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Post  canadian John on Mon Mar 26, 2012 5:18 pm

Hi Shelby,
You can get more information on Expando at Url www.expando.com.au
I ship boxes all over oz via toll Ipec order on line and get the boxes sent to your door in two days.
Eveyone must have found a big rock that there sure theres some gold underneath!

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Post  Guest on Tue Mar 27, 2012 10:46 pm

Hi Canadian John ,
I reckon this might of been the stuff we used to take off the toes on the Swan Decline underground haul road . We used air legs to drill the holes & then inserted this stuff . Next day - due to expansion it had fractured all the rock where it was inserted . Scraped it all away ... result - no more lumps in the floor .
Good stuff & very safe to use .

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Post  piston broke on Tue Mar 27, 2012 10:52 pm

Wouldn't it just expand out the hole you poured it in scratch cheers Pete. ps obviously not though
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Post  Guest on Tue Mar 27, 2012 10:58 pm

Hey Pete , sorry mate forgot to mention that we tampered the collar of the hole with clay & 1/4 minus aggregate .

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Post  Silverado6x6 on Tue Mar 27, 2012 11:01 pm

I seem to recall a product used for concrete demolition based upon this idea.
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