DIY Fire Bricks Part 2 (Testing & Results)
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- Опубліковано 12 тра 2021
- In this weeks video, I make a part 2 for the DIY FIRE BRICKS! You all have been asking for it! So here it is! Not only will I have answered a lot of your questions, but you will see some results as well. Plus some fun towards the end. Once again, thanks to all of you for the additional support. And I hope you enjoy the video. 😉
- Розваги
I know this video is long since old, but some things you may want to consider for another attempt:
Lime - good to over 4000f and a main component of fire bricks. Mix at a ration of 1.86 parts lime to 1 part silica sand.
Water glass - A binding agent that cures with CO2, iirc. You can make it by dissolving silica kitty litter in lye and water (it foams, be careful).
Silica sand - good to over 3000f, medium aggregate for the bricks.
Magnesium chloride - Sea salt, basically. Helps to form reinforcing crystals with magnesium oxide, lending strength to the brick.
Magnesium oxide - a dietary supplement, and one of the main ingredients in commercial fire bricks of old. Mixes with the chloride to make stronger crystals.
Water - dissolves the magnesiums and helps evenly disperse the water glass throughout the mix. When properly mixed, it should pack like casting sand does.
Using a press, you will need to press the brick (and release the pressure each go so it can breathe) into a form, then you should cure it at a low heat (ranges from 150c to 600c, done commercially for a week or two). If allowed to cure in air, the brick can liquify when heated. However, the strength of the brick should dramatically increase once it has been cured in heat, allowing it to be used in extreme heat.
Other things to note:
Magnesite (not magnetite!) is often used as a refractory additive.
Periclase is also often added for heat resistance. My understanding is that this is silica ferrite.
Chromite is also added for heat benefits.
I omitted these ingredients due to their difficulty in being obtained, and because it is highly unlikely anyone will need such extreme heat protection. You are free to experiment as you wish.
I have still not managed to figure out the exact ratios to everything, but I can tell you that for the old fire bricks 70% is made of aggregates, and that the lime/silica ratio should stay around 1.86 to 1 in favor of lime. Beyond that, I am assuming one dissolves the magnesium chloride and oxide in the water prior to adding it into the mix. I also assume that, of the 30% that isn't aggregate, you could arrive at the proper ratio for the last ingredients by doing some fun math with the lime and silica ratio to figure out how much left over is between the MgCl and MgO, and tweaking the balance until right.
Unfortunately, I have not gotten to test this myself, and have only been able to gather missing bits of info on the web through fairly dated references and materials, aside from one man on youtube who was having some fun with water glass and lime. It is possible that there are other ingredients I am missing here, and there's bound to be a lot of info I didnt get, so please don't take this as a surefire answer. I'm just trying to help. Hopefully, one of us can make something good out of this!
That’s fantastic
You forgot small rice grain sized lava rock agrigate
@@hafsalinda Thank you!
Awesome comment
@@MatiCandia Thank you! My apologies for the length of it, though.
Nice test and I can't wait to make me a plastered, fiber-reinforced rocket stove.
Have fun, and thanks for watching!
@@ThemanofcraftsSo I used my plaster/sand rocket stove and it held up okay when I burnt pine. Actually, it was grog from broken china pottery instead of sand, but I wanted to reuse broken pottery for the alumina.
Still worth it though and with 100% pumice bricks, I'll be using the plaster/sand mixture as mortar.
@UA-cam should make this guys videos go viral! just so fun to watch!
Thats very kind of you to say. Keep sharing my content with others, & hopefully they see it. 🙏🏻😊
@@Themanofcrafts I WILL
Thanks 😊
Thank you so much. Amazing info.
Wow this is amazing good thing i came across this channel in the first place... Good job bro!
Thanks 😊 Feel free to check out my other videos! 👍🏻
I'm convinced 😄
Good to know I can make this at home, trying to do a budget build of a furnace
That’s fantastic!
That’s for watching!
Thanks for sharing this man
If I were to build a high velocity atmospheric re-entry vehicle, could I use these on the wood fired pizza oven inside
You had me at HIGH VELOCITY ATMOSPHERIC RE-ENTRY VEHICLE 🚗
SpaceX wants to know your location
Its kinda hypersonic velocity lol
All I can say is I heard the scream from the Wife clear over here when she saw what you did to her pan!! 🤣
🤫 you didn’t see nothing. Lol
I like that you showed us this, because fire bricks are so stupid expensive!!
Yes they are!
You just explained every ? I had from the previous video I just watched. Great video follow up!
Thanks men!
I was gonna use in my wood stove. And some that have a round stove bottom wood stove could poor the mixture in. This is a great find these videos lol.
Well I hope you enjoyed the video, feel free to check out part 2 on my channel. And don’t be afraid to subscribe. I got tons of content coming.
You'd just have to think of how to safely and easily remove the ashes afterwards
Wow!
Thank you. I'm looking to build a small brick chimney kiln to make charcoal and bio-char. I think this method will work perfectly. I'm brainstorming with making a silicone mold of a brick instead of constructing it from plastic boards.
You’re welcome, that sounds like it would work really well. Feel free to check out my other videos. And spread the word!
You can actually make a mold of anything, wood, corrugated plastic, plexiglass, silicone etc etc
Plaster of Paris turns to burnt dead plaster after fired in high heat. Fired again at higher Temps for long time it will become calcium oxide. That is why plaster of Paris deteriorates. I made mine out of portland, Aluminum oxide blast material for the grog, And then coded it in sodium silicate. It's lasted four years and just now needs to be repaired or replaced
Good video, I'm making my pizza oven with red bricks because is all I got, do you think that mixing mortar and perlite is a good idea to lay bricks ?
That’s amazing how you can hold that brick after taking a torch to it.
I know right! I wouldn’t try that at home! 😉
Update here is an example: ua-cam.com/video/0IbWampaEcM/v-deo.html
umpteen materials that behave like that, we use to play with Amiente back in the 60s
I have see some that are even transparent and less than 1/4 the thickness,
and one can put one's hand on one side with an acetylene flame on the other.
Some of the latest: tantalum carbide and hafnium carbide
...but read my other post, there are some intriguing things about what you are doing.
@@Themanofcrafts Would you try it at work tho? 🤔🤔
@@jessl1934 It’s already been done ✅
Very cool idea and possibly better than TKOR cause of the steel wool.
Though replacing woodstove stones might be best with factory made firebrick cause yours seemed to be rubbing apart pretty quick. Hard call really as you did get it way hotter than my stove would ever get, perhaps a regular firebrick would fall apart too. That's the test I am here for to compare DIY to factory.
DiY might save a bit of money but if needing to be replaced every couple years then factory might be best as they will last for years.
Best part of making our own would be that I can make forms to make each brick exactly the perfect size rather than trying to split firebrick cause they are pricy and sometimes don't break like you wanted inturn wasting stones. My stove has some odd sizes/areas.
Having the forms already made would speed up the next time you need to make them which is a plus as well.
Now if you could grind up the old stones and use them as the sand for the second batch and so on that would save alot more in the long run and might be worth replacing them for say every 2 years rather than buying new stones every 5 years.
I need to do research on the longevity of factory made stones first, if they last 20 years on average then factory it is 😂
Excellent video & super information No long drawn out dissertation just straight to business. At min. $4-$5 ea., at the store, this is going to save me a ton. I am turning an old countertop convection oven with glass door into a wood burning stove for my RV. Using 16 oz. used propane cylinders for stove pipe up thru one of the roof vents on my '58 Airstream trailer. Thanks for the $ saving info.
I don't see anything that might be considered toxic in this mix. Why wouldn't you use it in an indoorf or outdoor cooking oven. (Pizza,bread, smoker, etc.?)
I personally just choose not to.
Any ideas on quickcrete all puprose sand vs play sand? Has more particulates in it, constituency would be close to concrete then cement I would think. What yall think? Also how much water gets added to each batch...?
You can try many different mixes if you would like. Add the water until it’s got a nice smoothie like consistency. Not thick, but also not runny! Thanks for watching! Hope you enjoy my other videos.
Was wondering if there any reason one could not make an oven with one pour of the fire brick mixture rather than a bunch of bricks? Such as cracking, expansion issues etc?
I'm sure you could, they make them small so they can easily be arranged and stacked in different shapes, the most common being for success being square or round but if you have a permanent setting/location for fire pit or oven you could pour one piece with no problem. Even the best fire brick end up with cracks after several years, it's totally fine, if one piece falls out simply slide it right back it, it will still do the trick. Another reason for small bricks is to easily replace broken ones
@@kerrywright8950 I like the idea of one solid furnace, then lining the oven with more bricks that can be replaced, and one to place pizza 🍕 on!
hi, if I change plaster to cement, it still can be fire-resistant brick too??? It would be burned or how? Bcoz I wanted to do a DIY firewood stove at my house and it's still the same method that you taught us, right? plus I want to save my savings too...
Damn!
Can I use this to wall my concrete fire pit with? Of course with ventilation!
Doesn’t hurt to try! 👍🏻 Thanks for watching!
For a fire pit you are not going to want insulating firebricks on the fire side as you want the bricks to store heat and give it back via mass.
Noob question. Can you use fiberglass to reinforce the bricks instead of the steel wool? I'm only using it to shield heat from a griddle.
If it is straight glass fibers it would likely be fine. No fiberglass resin.
I was just going to say the same thing!
I'd imagine if you replaced the gypsum plaster with a good kaolinite powder you could push this up to much higher temps.
Can your bricks be used to make a firebox panel, for use in a gas fireplace? If so, would I use high heat mortar to attach them to each other?
Doesn’t hurt to try. 👍🏻 Thanks for watching, I hope you enjoy my other videos.
I personally would never suggest using any kind of DIY fire protection in a home reno like a fire place, seems like an insurance nightmare waiting to happen in the event something goes wrong.
I would think the wire wool would burn out almost immediately when exposed to heat and the plaster would break down quickly too. Fun to build for a pizza oven but would not hold up at all in a gas forge type application.
Your correct. It's not a 3000 degree brick buuuuttt. When it breaks down it becomes burnt plaster. If you use that as a aggregate I'm thinking it will do great....theoretically.
Was thinking even if it last a a winter in the wood stove I'm find with making shit over and over again lol. Cool guy here
The steel wool only breaks down on the surface. Didnt you see him hold the brick after 600 ° torch to the brickface?
Please .. What type of cement that you use ? Is it Portland Cement or Alomomia Cement ?
If you mortar it together using refractory cement, and a thin layer on the inside to to make it pretty, you would probably have a complete high heat forge.
I've always had plaster of Paris crack or break
Hi! Can i use this as pizza stone?
THE BIG TEST! will your pizza taste like steel-wool lol
yeah yeah yeah.
...but if one wants to know what one is doing, there is a lot more testing to be done.
- the same testing with a standard yellow fire brick (are those made from yellow play-sand ?)
- a test to see heat radiation degradation after the heat supply is extinguished.
- as test with brick brought to full heat for a long period of time from one side, and measure; both side's; temp
- any toxins produced ?
The cost of the ingredients for these 10 bricks?
A facing with bentonite clay from kitty litter would up the durability.
Sounds fantastic!
Better make one to show if its waterproof lol I'm curious usually plaster melts when exposed to alot of water
I had some left outside when it rained and as soon as I let them dry. They were perfectly fine.
I left plaster on a brick wall outside and it still sticks.
I am trying to build a portable wood fired pizza oven with brick and 24 inch pavers (2). There are no 24 inch pavers in my area...so I am researching a build. I was given 2 bags of mortar mix. But the result is almost too hvy for me to maneuver. So...I mixed half and half mortar mix with vermiculite. I am waiting for it to set. Now Im second guessing myself. Please advise.
Would love to know how it turned out!
Thanks for watching! Feel free to check out my other videos.
Need some
Have fun making them! 😉
get some!
I'm Brazilian, and I use google translator to watch, professor, these bricks are insulated, can you use them in an oven to burn ceramics, and how many degrees does it hold?
Check out part 2
Can we use coarse sand or fine sand instead?
Absolutely
i can use this fire bricks to make crucible for melt iron cast
Can you build a small house with these?
Probably a miniature concept house for architectural purposes 🏡 I don’t see why not. But a full size Livable house. Probably not. 👍🏻 Thanks for watching.
These things are truly refractors, like amiente...
- they do not conduct heat hardly, though a longer test may have shown different.
- They do not hold heat they cool off fast
So, not good for a heater wood stove that would need post radiation of heat when the fire dies.
Thats why god created cobb
Can it be used on a coal stove that can run up to 3000F?
Try it out and see if it works
Can I use Fiberglass fibers instead of Steel Wool
That would be very interesting 🤔
😳😱👍
So I guess it's safe to say, this would work for a home made pizza oven?
You have to run tests on certain things like this yourself. Otherwise you will never know if it works or not.
Use clay bro and fire it.... Plaster won't handle heat for a long time because the water inside will escape
Thanks for the awesome idea 💡
هل يمكنني استخدامه في صهر الالمنيوم
Bring me the time crystals
That’s because they are high in alumina content and are rated for high heat applications.
And the time crystal belong to me!!!
mine fell apart after a week
Cool pseudo self-made geode!
Since you've decided to start making torture tests, why don't you do a torture test of your Bauer saw underwater till it stops working!
Obviously joking about that, Mr salty-sandy pants! But seriously, you could do a 4 years later video on how well your Bauer is still working and how well the battery is holding a charge...
... that's it if you're able to get your head that far out of your reck tum to realize that not everybody's being mean to you and trying to hurt your wittle little feelings!
I still have the same one. And it works perfectly. It’s a beast!
Wonder how this will work for pizza oven after being used did seem rub off like chalk would want it leaving residue on bottom of pizza although pizza oven only get 700-900 degrees not nearly the temps he put this brick through.
Nobody said you can cook on these genius
Wish you were my dad.
Haha! That’s very kind of you to say that! Thanks for watching! Don’t forget to check out my other videos.
I apologize for my comment on first part
I except your apology. Thanks for watching. I hope you consider subscribing.
Instead of plaster how would cement work?
Absolutely! Experiment with different additives. The results you’ll find are awesome. Thanks for watching. Feel free to share my videos, and watch others.
A student sent a link to this video with some questions...I thought I would respond here as they are important (perhaps?) for others to understand as well...
Are these real fire bricks?
No, not in your typical application as they would be employed, if the goal is an actual durable standard firebrick as they are utilized in ceramics and related traditional applications (i.e. kilns, production foundries, masonry heaters, etc.)
Will these work short term?
Clearly, they will take high temperatures and insulate both...
However, this begs the question is the effort in time and expense making them, compared to actual fire brick, (homemade or purchased) that can endure years of applied use without the clear exfoliation, spawling, and related degradation these bricks present with after only being hit with a torch for a short time in the video. This is an interesting experiment with clear temporary applications but does not demonstrate the fabrication of actual "firebrick," as used in the craft industry...
Thanks Jay C for replying. You are correct! These are NOT actual fire bricks 🧱. They are cheep alternatives to the real thing.
Now that doesn’t mean using these “ diy fire bricks” in a unsafe way. Or without any common sense is smart. Just like anything that holds itself together temporarily. As long as it’s taken care of. It will last as long as you want it to last. But if you are treating it like garbage. It will become garbage. As long as you take care of yourself, be safe, & have fun. 🤩 You can experiment with this method in so many ways. Thanks again for watching!
U got it up to 1k and its deterating not good
What the hell are you cooking that’s over 1000 degrees? People and there opinions!?
Copper dummy
Wow you’re not intelligent at all
First off, I love this video and the previous one. As for this commenter, I melt copper bronze in my furnace that is made with refractory cement and kaowool and that stuff is rated for 3000 degree F and not cheap. Right tool for the. job, and these bricks aren't for that purpose. They still seem very useful.
so it would appear that from this video I could conclude that the brick will not hold up under extreme heat for very long. Not really suitable for a wood fire ore gas fire kiln.
I’ve also come to a conclusion. It would seem that no one pays attention to videos.
@@Themanofcrafts 6k flame does not mean the surface reaches 6k though. Plaster melts around 2200 per a quick Google, and an electric pottery kiln fires to around the same temp. It would be instructional to throw one in a real kiln, get it to that temp and see how it holds up. Any chance you have a cost breakdown? For a non kiln fire application these are probably fine heat wise. A layer of sodium silicate might help durability a ton too. A recipe I found to coat a perlite based refractory form is a mix of sodium silicate and aluminum oxide powder for a strong very heat reflective coating.
I hope most folks realize that plaster isn't a durable refractory material. Glass artists use plaster & silica (fine sand) to make "single-use" molds, which only handle about 1800f one time and crumble apart upon cooling. IFBs (insulating fire bricks) aren't made from plaster. "Refractory suppliers" sell fire brick & other high temp materials.
The "test" above was a sham. He merely brushed the surface with a torch. Then he handled it with bare hands.
I hope you realize that you are the SHAM. It’s a video donkey. Go find someone else’s channel to make stupid comments. Or just watch and enjoy. 😉
@@Themanofcrafts You are lying to people! You haven't a clue about what you're doing. Why waste our time?
These are not fire bricks. 900F is nowhere near the temperature of an electric kiln. Seeing it crumble at the end from the relatively low temperature says it all.
Goes to show, you didn’t even pay attention to the video. Oxygen and acetylene burns at almost 6000 degrees Fahrenheit. That’s what I was using, now for the temperature gun. It’s only rated for so much. There for was only giving off its Maxed out reading, or something very close to it. As far as crumbling at the end of the video. What part of my video says that they’re 100% crumble free materials??? Do yourself a favor, before you start criticizing other people’s work. Actually listen 👂 and pay attention to the video you’re watching. You might actually learn something.
Did you see when NileRed extracted bismuth from pepto? 👾🫠