How To Make Improvised Roman Concrete (Corporal-Crete)

welcome to corporals corner today we're gonna make a modern version of Roman concrete called corporal Creek so stick around okay today I want to do a video a follow-up video on the Roman concrete about a month ago this is not a part two it's more of a follow up and it's in response to several emails for PMS I received from viewers or subscribers that we're asking well how do I make this if I don't have access to a volcano I got thinking about that I said you know Roman concrete idea is cool but yeah the right bottom line if you don't have access to volcanic ash pumice volcanic rock volcanic tuff or limestone you're not gonna do this so how can I make this the same way but using modern materials so I want to do some research and during that research I found that ancient Chinese even the Romans and over in India they would substitute pot shards or terracotta and brick dust sometimes with their volcanic ash and what that did is it was a pozzolan or puzzle on however you want pronounce it and a puzzle and it's basically a binder material that is from silica or salacious I hope I'm pronouncing that properly and a luminous material and it possesses no cement properties at all zero however once you combine that with calcium hydroxide and add water it chemically reacts and it produces a binder just like cement and that's we did with Roman concrete we made lime Crete or lime concrete lime mortar so we can do the exact same thing using modern materials so armed with that knowledge what I did is I thought let's approach this from a prepper or crap hits the fan scenario most of us live in cities towns suburbia where'd you find terracotta Brooking tiles all the light brown tiles you see is terracotta potted plants they're found in almost every single home terracotta red brick that's found in almost every single city across the country especially back east most the buildings are made with red brick so last thing we need is limestone they are thinking about that also a lot of garden beds does white rocks limestone those fake rock facades that you see on sides of buildings are poured limestone in most cases so once again armed with that knowledge I said to myself we can do this right here with modern materials so what you got coming up next is a voiceover the material or footage and we'll call it corporal Creek enjoy the first thing you have to do is determine whether or not you actually have limestone so grab the rock in question and some vinegar put a few drops on it and if you see a bubble or fizz up that's a good chance you have limestone one good source of pure limestone is the ordinary seashell just grab a bucket full of these and superheated inside of a foundry or a Forge our ordinary campfire until you notice that the shell starts to crumble once the shells crumble remove it from the fire let it cool down and then just add water by superheating the shells or limestone you've created calcium oxide by adding water even an exothermic reaction where it produces heat becomes hydrated and becomes calcium hydroxide if you listen close you can hear a slight sizzling that's not because the shell is hot but it's because the exothermic reaction is taking place if you watch closely you notice the shells are becoming brittle breaking apart and disintegrating and forming a paste at this point right here we're moving towards our end result we're trying to create calcium hydroxide currently the calcium oxide is reacting with the water and producing an exothermic reaction where heat is generated just that small amount right there is producing well over 130 degrees it's being cooked from the inside out it's also drying out and will produce a fine white powder which is calcium hydroxide which you can store indefinitely another way to produce calcium oxide in ultimately calcium hydroxide is to grab ordinary limestone rocks the more chalky and appearance the better placing us I have a firepit foundry or Forge and superheat them for three to four hours until they glow red after you superheated your rocks for three to four hours go and remove them let them cool down and just like the seashells add water notice how the rock is actually disintegrating and turning into a paste once again exothermic reactions taking place in the calcium oxide is becoming hydrated which ultimately becomes calcium hydroxide one of the building blocks for your line Crete or concrete now right here we have a large-scale experiment I had a bunch of rocks and seashells I crushed them up with a hammer and put them into a bucket I'm gonna add water to this all right now this is considered slaked lime which when you go ahead take your calcium oxide add water it becomes calcium hydroxide through that exothermic reaction that we talked about so this is called slaking your lime or select lime there's my paste and almost immediately you're gonna see steam coming off of this here's the sizzling wash close you can see it crack apart that's the exothermic reaction and this one here is almost 200 degrees check this out once your calcium hydroxide cools down it turns into a fluffy white powder and you can keep adding to this seal the bucket and keep it indefinitely now that we have our calcium hydroxide ready to go it's time to work around binding material or a pozzolan that we talked about earlier right here we have terracotta I'm gonna crush it up with a hammer I'm going to create fine medium and coarse material the coarse material will be used as my aggregate in place of my rock and then go ahead do the exact same thing with the red brick I'm gonna go ahead and go with a one-to-one mix meaning 1 pound 2 1 pounds with one pound of calcium hydroxide and then there's 1 pound of red brick dust and terra cotta dose finally we'll go ahead and add the water and then toss in our aggregates and here's our end result honestly this is trial and error so what I did is I went back to our previous video and I made this and do a Plato like consistency you see how it's not sticking to my hands I was still able to roll it around and cast a shape and last but not least I went ahead and filled my container I did it in two layers use my wooden tapping tool to tap it all the way around make sure everything was packed in the corners filled my second layer and then I finished off the surface with a metal blade and now for the million dollar question how long do I leave it inside the forum this one right here I left for seven days I stripped the form off and lo and behold there you go corporal Creek now before we get out of here I want to go I don't want to show you something this was the first block or brick I made out of the Roman concrete from our previous video and when I go ahead and I hit it here that real dull thud this resembles concrete concrete is thick it's dense dull thud when you hit it next we have the Corporal Crete it's made the exact same way except we substituted a volcanic ash for red brick dust and terracotta when I tap on it it's got a higher pitch just like bricks and terracotta do so in a sense we can create our own bricks now as well as concrete welcome back a success of failure you decide I hope this helped to answer questions as far as what can be used for volcanic ash substitutes and in no way am I suggesting that you use any of these materials in place of modern concrete however just like last time it's just my humble opinion it may be beneficial in a crap hits the fan scenario to know how to make some sort of a concrete or lime Creek as well as bricks or blocks think of your comments abuse support thanks for watching the other ones have some fun I'll catch you next time [Music]

Channel: Corporals Corner

Views: 120,974

Rating: 4.9480853 out of 5

Keywords: Shawn Kelly, Corporals Corner, Dave Canterbury, Survival, Roman Concrete, Volcano, Pompeii, Skillet, Rope Bridge, Primitive skills, Woodsman, Axe, MRE, Tinder, Bundle, Camp, Hike, Doomsday, SHTF, Prepper, Calcium Hydroxide, Ash, Bow Drill, Tent, Tarp, Hammock, Waxed Canvas, Kit Mentality, Limestone, Masonry, Construction, Clay Bricks, Mortar, Survival Lilly, History, Fire, Raised Bed, Otzi Axe, Fighting Hole, Compass, Get Home Bag, Bug Out Bag, Primitive Technology, Lime, Survival Skills Primitive

Id: qj7kr2ho800

Length: 15min 1sec (901 seconds)

Published: Sun Aug 27 2017