Author: Subject: Breaking rock without explosives Breaking rock without explosives



There are a number of products on the market for breaking up rock and concrete without explosives.

http://www.ecobust.com/

http://www.crackamite.com/


also dynochem, dexchem

https://en.wikipedia.org/wiki/Non-explosive_demolition_agent...

Has anyone any idea what these products contain or can some cheap substitute be had?


Just some quick searching around:

"Crackamite is a non-toxic powder consisting of oxides of calcium, silicon and aluminum. The chemical composition of Crackamite is a powder consisting of an inorganic compound made mainly of a special kind of silicate and an organic compound. Crackamite does not contain any harmful components."

MSDS: http://www.crackamite.com/msds

was wondering about this myself ... http://www.sciencemadness.org/talk/viewthread.php?tid=#...


Thanks for replys.
Going to the patents there are lots of formula.
Searching for rock breaking + cao takes up for example:

CONSTITUTION: This static breaking material is an expanding substance formed by heat-treating a mixture of a CaO raw material and a CaF2 raw material, comprises a mineral composed of CaO and CaF2 as effective ingredients and has 15-20 pts.wt. of CaF2 based on 100 pts.wt. total amount of CaO and CaF2. Or this static breaking material comprises the expanding substance and a hydraulic substance and/or a latent hydraulic substance, a setting modifier and a water reducing agent. By using the static breaking material high-performance breaking ability and effects such as breaking a rock or concrete even at a low temperature in about half a day are obtained.

It CaF cheap and non toxic? I would imagine not.

Another one:

PURPOSE: To provide the title breaking agent capable of breaking a bulky material in a short time at high breaking efficiency safely by using a specific quicklime in the title breaking agent contg. a given amt. of quicklime.
CONSTITUTION: In the title breaking agent contg. at least 50wt.% quicklime, use is made of CO2-treated quicklime prepd. by bringing a starting quicklime powder into contact with CO2.

Searching rock breaking + quicklime gives (amongst others)
Abstract:
PURPOSE: To provide the subject breaking agent capable of breaking rock or concrete in a short time without causing a stream-generating phenomenon by compression-solidifying the powder of a hydratively swellable material consisting mainly of burnt lime, crushing the solid product and subsequently packaging the crushed product with a water-permeable material in a bar-like shape.




CONSTITUTION: The powder of a hydratively swellable material consisting mainly of burnt lime, preferably consisting of 10-20wt.% of alumina cement, 2-6wt.% of Ca(OH)2 and the remaining amount of CaO, is once compression- solidified, crushed and subsequently packaged with a water-permeable material such as nylon or PP nonwoven fabric in a bar-like shape to provide the objective breaking agent.


and more:

CONSTITUTION: The breaking agent for brittle substance (e.g. rock or concrete) is prepared by adding 0.1W5pts.wt. fluidizing agent (e.g. formalin condensate of naphthalenesulfonic acid) and 0.05W5pts.wt. carbonate (g. sodium carbonate) to 100pts.wt. quick lime. For improved performance, about 0.1W5pts.wt. water is added for partial slaking of the lime. For application, 20W50pts.wt. water is added to 100pts.wt. breaking agent to prepare an aqueous slurry, which is poured into a hole made in a brittle substance to cause breaking of the substance by expansive force of the slurry.


Searching non explosive rock breaking takes up (amongst others)
A rock and concrete breaking (fracturing-demolishing-splitting) system comprising: a chemical mixture comprising potassium chlorate with ratio of 55-70% by weight of mixture; ammonium oxalate with ratio of 15-30% by weight of mixture; sugar or lactose or starch or any combination of them with ratio of 15-20% by weight of mixture; boron oxide (boroxide) (B2O3) with ratio of 5-10% by weight of mixture; borax decahydrate (Na2B4O7.10H2O) with ratio of 3-5% by weight of mixture; an activation component placed inside and/or in contact directly or indirectly with the chemical mixture, wherein the activation component is configured to activate the chemical mixture to burn and expand; and an activation system configured to activate the activation component wherein when the activation system activates the activation component, the activation component activates the chemical mixture that causes chemical mixture to burn and expand.

searching silent not explosive rock breaking takes up (amongst others)

Abstract:
A high speed silent cracking agent of the liquid-soaked type consists of a cartridge of solid cracking agent and a solution of liquid inhibitor catalyst. The cartridge of solid cracking agent contains about 50 to about 90 percent by weight of quicklime, about 1 to about 4 percent by weight of borax, about 8 to about 30 percent by weight of vermiculite, 0 to 2 percent by weight of aluminum powder, and 0 to about 14 percent by weight of sulphur based on the total weight of said solid cracking agent. The solution of liquid inhibitor catalyst contains about 0.05 to about 0.40 percent by weight of caustic soda, about 0.01 to about 0.50 percent by weight of quartz, about 0.04 to about 0.30 percent by weight of ammoniation agent and about 99.8 to about 98.8 percent by weight of water, or contains about 0.40 to about 1.80 percent by weight sodium silicate, about 0.05 to about 0.40 percent by weight of ammoniation agent and about 99.55 to about 97.8 percent by weight of water based on the total weight of said solution. The expansion pressure of the silent cracking agent is about 70 to about 130 MPa and the cracking time is about 3 to 60 minutes. It can be widely used in the fields of rock quarrying and processing, highway constructing, concrete foundation demolishing, smooth blasting in tunnels and shafts, and coal mining.


At this stage I must appologise for all the posting.
I GOT CARRIED AWAY!

Yob




I actually worked with a guy that formulated such a product. I could never get the recipe from him though.

I suspect it was based on regular, quick-setting portland cement with ~10% CaO added. Calcium oxide causes the cement to expand as it sets, testing expansion was part of the standard testing done on every batch of cement we produced. And it correlated well with free CaO-values.

We're not banging rocks together here. We know how to put a man back together.

For more information, please visit our website.

An old, old method of mining, was to soak the area to be quarried in water (this was large scale, stone age tech or early metal age) and then light a dirty great fire at the bottom of whatever cliff the miners were at, the steam formed fracturing the rock.

If you drill a line of holes along a straight line near a cliff, you can fill them with expanding cement, water and then freeze, or metal wedges to break off a chuck of rock. That is how some stone is quarried in big pieces, especially if it is not stable to the shock of explosives.

For mining gravel, drilling a hole and filling it with explosives is much cheaper and more fun.


I have actually used the fire method to remove a small outcrop of very hard rock that was sticking out in the way. It was very hard and a crow bar was having no effect on it (at least a crow bar with the rock on one end and me on the other end!)
I cut the stone with an angle grinder (con saw, or friction cutter) where it was joined to the mother rock and then lit a very hot fire with coal and wood and a gas burner.
Pored some water on it when it was still hot (can be dangerous as stone chips can fly). A good layer came off the stone (with crow bar) and the process was repeated to get some more away. Worked good.
It would make you appreciate what it must have been like trying to quarry stones when all you had was a deers antler, before the time of metals.

I am moving with the times and have decided to go from fire to chemicals.

Yob

If you're already going to drill holes for an expanding chemical, you might as well save money and get yourself a pack of shims and wedges.

You only need to drill 3-4 inches deep for wedges. That's far less than the drilling guidelines for any of the expanding chemical stuff, which calls for holes 80-90% through the thickness of the material. The money saved on carbide bits alone will be significant.

Plus, the chemical stuff is expensive and won't work if the hole is horizontal or upside down; the wedges do fine at all angles.

It's also faster since there is less drilling, no mixing and pouring, and no waiting around for chemicals to expand.

https://www.amazon.com/Wedges-Shims-Pkg-Sets/dp/BGNCU

Quote: Originally posted by curiosity_cat   Quote: Originally posted by PHILOU Zrealone  dillatation coefficient is

Studying that one thanks, I remember seeing a liquid nitrogen demonstration as a kid before YouTube existed where they cooled the brass ball then it fit through the ring, that was impressive.

An idea I had was using a solar to do the tunneling


https://www.youtube.com/watch?v=svAPyyUJUCo

Focus solar on a spot then have a system like in the produce section to periodically spray water to hopefully break off a little. Slow but with solar tracking and automation I imagine it could do all the work with little input.




I started this thread in EM http://www.sciencemadness.org/talk/viewthread.php?tid= and a link to here was posted .





https://patents.google.com/patent/EPA1

Would this not actually go 'bang'? Bert

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posted on 7-4- at 17:54

This system is, essentially, a gas generator. Function is NO DIFFERENT in any meaningfull way from good old fashioned blasting powder, it is pyrotechnically initiated and burns a fuel with an oxidizer, although they did cleverly separate the two for transport and storage and load into the bore hole separately.

Hell yes, it will go "BANG!".

It is possibly safer to transport and store than black powder. By regulatory standards, it could be less onerous to transport and use than a ready to ignite gas generator (what we in the trade also call "a deflagrating explosive", at least where the regulators can't hear us).

A company in the Midwest of USA was making gas generator type rock fracturing cartridges on a contract to some other company a few years back. Not an EXPLOSIVE, oh no! MUCH safer, it wasn't that dangerous old fashioned black powder everyone knows about. The wonderful new product only made safe, natural, Earth mother Gaia approved water vapor and innocuous Nitrogen gas, same as 80% of the air you breathe-

Then they managed to accidentally initiate however much of the stuff and finished cartridges were laying about in their production building. Destroyed the building with what looked suspiciously similar to what is technically known as a "fire". Two workers dead, one of the family very seriously burned. I know some of the people involved, the survivor will have a rather reduced quality of life for the rest of his days. 50%+ 2nd and 3rd degree burns will do that, regardless of the chemicals inflicting them.

If it makes enough hot gas to split a rock in a fraction of a second, damn the difference anyway. It is functionally an explosive, and it will kill you for disrespecting it just as quick as any other type of powder.

What is the liquid used to break stone slabs?

• Thread starter

  venkat badugu

• Start date

  Nov 30,

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  Break Liquid

In summary, the conversation discusses a man in a village who is able to break a stone slab into small pieces using a gas cylinder fire and a liquid. The person asking the question is curious about what this liquid could be, but the man refuses to reveal its name. Some suggestions are given, such as water or other chemical solutions, but it is ultimately concluded that water is the most likely candidate due to its cooling properties and the physical process involved in breaking the stone.

• Nov 30,

• #1

venkat badugu

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Hi guys,

I have seen in my village that there is one guy who is heating up the stone slab for few mins with gas cylinder fire and after few mins. he pouring some liquid on that heated part. Immediately that part becomes break small pieces. He removes them and again heating up and pouring that liquid. Like this, he total breaks that stone slap and makes big hole. As a chemist student, i wanted to know what is that liquid. when i asked him, he simply smiles and not revealing me. I felt very bad that though i studied person, i could n't find out the liquid name as that person know. I think its available every where. i thought that its spirit, but its not when i checked its smell. he carrying in plastic bottle and it looks like water. but its not water.

so what could be the liquid. any guesses here guys. Just out of interest, i am posting it here. Thanks to all.

 

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• Nov 30,

• #2

Borek

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How do you know it is not just water?

 

• Nov 30,

• #3

venkat badugu

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Borek said:

How do you know it is not just water?

I have checked. I don't think stone slab split into pieces if we pour water into it. water reduces heat, where as here liquid giving more heat to stone.

I have checked. I don't think stone slab split into pieces if we pour water into it. water reduces heat, where as here liquid giving more heat to stone.

 

• Nov 30,

• #4

Borek

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• Nov 30,

• #5

Unlocking Benefits of Potassium Diformate in Feed Additives

Merlin

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From your description this has to be a physical process. The breaks are inside the material, but the liquid touches only the surface.
Since the flame is heating the material, it seems reasonable to think the liquid does the opposite and cools it. Water would seem a good candidate.

The mechanism would be stress caused by parts of the stone being at different temperatures and different strain. Heating with the torch may be relatively slow, so that the temperature gradient is not great enough. Sudden cooling could increase the strain gradient.

Heating alone is enogh to fracture some stone.

 

• Nov 30,

• #6

venkat badugu

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Borek said:

I know that glass will break with water when its in high temperature. How about for raw stones and stone slabs. will it be happens the same.

I know that glass will break with water when its in high temperature. How about for raw stones and stone slabs. will it be happens the same.

 

• Nov 30,

• #7

Borek

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venkat badugu said:

How about for raw stones and stone slabs. will it be happens the same.

See what Merlin wrote above, same mechanism at work.

See what Merlin wrote above, same mechanism at work.

 

• Dec 7,

• #8

Jake Osborne

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I doubt that it is any chemical solution because that would make a dangerous amount of vapor. Although there probably is certain chemicals that might work for something like that, what he is using is most likely water

 

• Dec 7,

• #9

phinds

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Jake Osborne said:

I doubt that it is any chemical solution because that would make a dangerous amount of vapor. Although there probably is certain chemicals that might work for something like that, what he is using is most likely water

 

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FAQ: What is the liquid used to break stone slabs?

1. How does liquid break stone stabs?

Liquid can break stone stabs through a process called erosion. When the liquid comes into contact with the stone, it can slowly dissolve and wear away the surface, causing it to break apart.

2. What type of liquid is best for breaking stone stabs?

There is no specific type of liquid that is best for breaking stone stabs. However, acidic liquids such as vinegar or lemon juice are commonly used as they have a stronger erosive effect on stone.

3. Can any type of stone be broken with liquid?

No, not all types of stone can be broken with liquid. Some stones, such as granite or quartz, are much harder and more resistant to erosion. It is also important to consider the concentration and type of liquid being used.

4. How long does it take for liquid to break stone stabs?

The time it takes for liquid to break stone stabs can vary depending on factors such as the type of stone, concentration of the liquid, and amount of time the liquid is in contact with the stone. It can take anywhere from a few hours to several days.

5. Is it safe to use liquid to break stone stabs?

Using liquid to break stone stabs can be dangerous and should only be done by professionals. The process can create hazardous fumes and the liquid can cause skin and eye irritation. It is important to follow safety precautions and wear protective gear when using liquid for this purpose.

If you want to learn more, please visit our website Stone Breaking Chemical.