I waited slightly over a month. I work with concrete the most and have over 10 other samples curing out waiting to be tested. They are Much, much stronger samples. I did this video more as a baseline starting point only to show what a very basic concrete mix can do.
Have you conducted research into new extreme strength concrete types? Apparently, in Iran, they developed a form of concrete that is supposedly strong enough to withstand the rocket assisted gun tube penetrating devices. I don't recall a lot of the details, right off, but it is vastly stronger than typical concrete. If I recall correctly, it seemed to be largely due to the entrained fibers, but I'm not certain.
I have worked extensively with Ultra High Performance Concrete. As a matter of fact, I have some FGCC (layers of UHPC) curing at the moment. I should have that video ready to test in a couple of weeks. I love working with concrete
You may want to try longer strands of fiberglass to bind better and add in small gravel aggregate to diffuse the initial kinetic energy of the rounds. Just a suggestion. Great project.
Seems like the concrete is too brittle but has decent stopping power. 2 suggestions: Back it up with something flexible like hdpe and then wrap it in welding blanket permeated with resin. Also you could try soaking the concrete in a tub of water after it's initial cure for a few weeks, which will make it much stronger.
Love the suggestions. I do have a previous video where I wrap the concrete (GFRC) with fiberglass and it held up quite well. Also, I have version 2.0 of these concrete slabs curing as we speak. They should be ready to test in about 15 days.
You should check out hempcrete building blocks they are fire resistant and if you play with the length of fibres you could probably make them bullet resistant as well . Thanks for the video it was really interesting .
I have tried that and it works very well. The problem is the amount of weight it adds is very substantial. I have a new test coming out in about a month with some very strong samples.
I have tried steel mesh inside and it works very well. The only problem is the weight added is very substantial. I have a new test coming out at the end of the month with some very strong concrete samples.
Nice! You tested cement blocks, need to add stone for concrete. I make high quality FLG Graphene, do you want some to test? Can expect 50% extra strength, and 400x more water resistance.
The concrete can stop the round easily the problem is the concrete doesn't have enough structure to hold it in place...Get a 6 mill plate hard Ox or Bis Plate with a Lip all the way round with nipples then fill tray with reinforced 55 MPA concrete with Long thin Fiberglass like cut strips from a welders Blanket and then fibreglass to encase and rhino coat for anti spall and the fibre glass will contain the round the rhino will take care of the metal jacket spall and the concrete will not compress and cant expand as its held by the steel and the nipples anchor it across the face... Concrete fibreglass blanket steel plate and rhino coat....Make a Few test at varying thicknesses and only with each calibre...,Test and adjust as per each calibre requirements.... Then classify....
I appreciate you (and other channels) doing these type of tests (especially in a scientific way), as they cost time and money to build and test.
I just came a crossed this channel and found idea bullet resistant concrete rather interesting idea. Will wait for the next video.
How long did you let the concrete cure? Full strength usually comes in after 30+ days
I waited slightly over a month. I work with concrete the most and have over 10 other samples curing out waiting to be tested. They are Much, much stronger samples. I did this video more as a baseline starting point only to show what a very basic concrete mix can do.
Have you conducted research into new extreme strength concrete types? Apparently, in Iran, they developed a form of concrete that is supposedly strong enough to withstand the rocket assisted gun tube penetrating devices.
I don't recall a lot of the details, right off, but it is vastly stronger than typical concrete. If I recall correctly, it seemed to be largely due to the entrained fibers, but I'm not certain.
I have worked extensively with Ultra High Performance Concrete. As a matter of fact, I have some FGCC (layers of UHPC) curing at the moment. I should have that video ready to test in a couple of weeks. I love working with concrete
You may want to try longer strands of fiberglass to bind better and add in small gravel aggregate to diffuse the initial kinetic energy of the rounds. Just a suggestion. Great project.
You are correct. We modified the mix and have been waiting for them to cure. I’ll have the new mix tested by the end of this month.
@@3RBallistics it would be great if you can develop a low cost concrete option for residential armor 😉 👍
Seems like the concrete is too brittle but has decent stopping power. 2 suggestions:
Back it up with something flexible like hdpe and then wrap it in welding blanket permeated with resin. Also you could try soaking the concrete in a tub of water after it's initial cure for a few weeks, which will make it much stronger.
Love the suggestions. I do have a previous video where I wrap the concrete (GFRC) with fiberglass and it held up quite well. Also, I have version 2.0 of these concrete slabs curing as we speak. They should be ready to test in about 15 days.
@@3RBallistics cool, I'll go check out the other video.
You should check out hempcrete building blocks they are fire resistant and if you play with the length of fibres you could probably make them bullet resistant as well . Thanks for the video it was really interesting .
I absolutely will check that out. I do plan on making some UHPC samples as well along with many different fibers to try out.
How about with steel mesh inside?
I have tried that and it works very well. The problem is the amount of weight it adds is very substantial. I have a new test coming out in about a month with some very strong samples.
I have tried steel mesh inside and it works very well. The only problem is the weight added is very substantial. I have a new test coming out at the end of the month with some very strong concrete samples.
@@3RBallistics That's awesome! I'm also considering adding graphene.
Nice! You tested cement blocks, need to add stone for concrete. I make high quality FLG Graphene, do you want some to test? Can expect 50% extra strength, and 400x more water resistance.
The concrete can stop the round easily the problem is the concrete doesn't have enough structure to hold it in place...Get a 6 mill plate hard Ox or Bis Plate with a Lip all the way round with nipples then fill tray with reinforced 55 MPA concrete with Long thin Fiberglass like cut strips from a welders Blanket and then fibreglass to encase and rhino coat for anti spall and the fibre glass will contain the round the rhino will take care of the metal jacket spall and the concrete will not compress and cant expand as its held by the steel and the nipples anchor it across the face... Concrete fibreglass blanket steel plate and rhino coat....Make a Few test at varying thicknesses and only with each calibre...,Test and adjust as per each calibre requirements.... Then classify....
Make sure its cured ²8 days
I actually waited 28 days just to be sure 👍