Flexible Concrete

[palani]

Stuff looks interesting.

http://news.therawfoodworld.com/flexible-concrete-canvas/

http://www.concretecanvas.com/

[madfranks]

Well, it's not really "flexible concrete", it's a dry cement/aggregate mix embedded in the fabric, which upon exposure to water, hardens just like normal concrete. Per the website:


Concrete Canvas is a flexible concrete impregnated fabric that hardens on hydration to form a thin, durable water proof and fire-resistant concrete layer.

[palani]

Well, it's not really "flexible concrete", it's a dry cement/aggregate mix embedded in the fabric, which upon exposure to water, hardens just like normal concrete. Per the website:

The building comes in a bag. You add water and wait several hours. Then you cut the bag and attach a blower. The air pressure blows up the building (with door attached) and after 24 hours you can walk on it.

What is not to like?

[Neuro]

The building comes in a bag. You add water and wait several hours. Then you cut the bag and attach a blower. The air pressure blows up the building (with door attached) and after 24 hours you can walk on it.

What is not to like?
Great idea! I wonder if you can load a few feet of soil on top of it?

[palani]

Great idea! I wonder if you can load a few feet of soil on top of it?

According to this video .. the answer is yes. Notice they inflate the structure first and then hose it down

https://www.youtube.com/watch?feature=player_embedded&v=LBHVKFCoYFc

[Ponce]

Check the year of the video, already saw it....this is two years old.........good idea for a rapid shelter, love it.

V

[Dogman]

Before deflating if possible, I think I have seen something similar to this and spray concrete was used, but it was used inside the shell. I see no reason why spray concrete/shockcrete could not be sprayed on the outside to strengthen the shell and then bury it or apply a finish to the outside!

Instant cave/room or rooms by joining two structures together.

http://www.monolithic.org/

Very cool ideal!

Hope this map works, bunch of joined domes and dome houses.

https://www.google.com/maps/@32.2010352,-96.8942553,233m/data=!3m1!1e3

[Neuro]

Before deflating if possible, I think I have seen something similar to this and spray concrete was used, but it was used inside the shell. I see no reason why spray concrete/shockcrete could not be sprayed on the outside to strengthen the shell and then bury it or apply a finish to the outside!

Instant cave/room or rooms by joining two structures together.

http://www.monolithic.org/

Very cool ideal!

Hope this map works, bunch of joined domes and dome houses.

https://www.google.com/maps/@32.2010352,-96.8942553,233m/data=!3m1!1e3
I was interested in these monolithic domes 6-7 years ago. You basically inflate a balloon, and spray PU-foam on it a feet or so thick, and then you bend some steel reinforcement bars around it and spray an inch or so of concrete on top of it, and then you have a virtually indestructible building with excellent thermal properties (you have the smallest surface area to volume). I have been thinking you could build a monolithic house using a giant 3d-printer, that uses PU-foam, and you can build it in any irregular shape you like, it won't be as strong as a dome of course, but it would surely generate very interesting house shapes possibly...

[mick silver]

also spray it with tar to keep out water before you cover it with dirt

[Glass]

these are a good idea. been bookmarked a few years. They have a long list of awards now. I wonder what the stand alone thermal properties are like?

They look like they can carry good weight.

[hoarder]

I want a teepee made out of that stuff.

[Serpo]

https://www.youtube.com/watch?v=Vb1pdvvoVoQ#t=71


Have had too much experience in this area in the past building a ferro cement dwelling, took a few years ,this seems to take minutes so its ....WOW.........



this is in the BAG........

[Glass]

I want a teepee made out of that stuff.

You can use regular water.

those guys have white coats on. Must be boffins or something.

I'd like it as a yurt. There used to be a dealer agent here in Aus but can't find them now.

[Serpo]

You can use regular water.

those guys have white coats on. Must be boffins or something.


Always put a white coat on when making a clip explaining something, it makes it appear more intelligent.


In my case I would put on 2 ,just to make sure...haha

[Glass]

Always put a white coat on when making a clip explaining something, it makes it appear more intelligent.

yes the hair replacement guy on tv has me convinced. Something to do with clinics and proving facts. but seriously I like this idea. is good.

[Serpo]

https://www.youtube.com/watch?v=EBkv5jjjhJ0

[Glass]

I like the interlocking design. No mortar. Decades ago I was in the north west of the state. Very remote. Sometimes you would haul truck after truck of house bricks from Perth to Karratha or Broome. So 1000+ miles. The big towns also usually had a local brick maker. These were small operations compared to the factories in the big smoke. so small in fact that there was usually only one extrusion machine in place. So a house load of bricks might take 2 -3 days to produce then firing etc. You could either buy local and wait or haul them up from the south.

Seeing one of those machines in action I was thinking to myself it would be good to have one. Never forgot the machines but I think all small those brick works have long since gone. I saw some gear at an auction about 4 year ago.

The other thing they used to use was cinder blocks. Here they were called Besser blocks which I think was the local manufacturer. Still needed mortar. So same material as the blocks in the vid but regular shape.

[palani]

Still needed mortar.

As an alternative .... a portable adobe machine. No mortar needed.

http://www.adobe-block.com/

http://www.adobe-block.com/images/wire3.gif

[Glass]

There was a rammed earth house built in a town I lived in. The land was a lot of clay and sloping so they cut into the slope and used the clay to build a house with rammed earth walls. The structure was rectangular with an arched trussed roof, corrugated iron. Simple design. Exterior walls were thick. 8 - 12" not sure. Interior walls were thinner but thicker than regular brick. Maybe 6 - 8". Nice place. Architect guy so it was impressively executed. Low visual impact outside. I would do it if the site had the resources. I think it needs the right situation.

good though. if your land has the clay these machines mean you can make your own bricks and no material costs. Your time and operating costs. Satisfaction and other pluses.

[Neuro]

https://www.youtube.com/watch?v=EBkv5jjjhJ0
That shape building blocks could be made in PU-foam, and then you just plaster the inside and outside walls, and it would be excellent for colder climates too! One person could probably build the frame in a day, without breaking the back!

[hoarder]

Just the labor of applying stucco alone would cost many times more than $2500. Anyone here ever try smearing stucco to a cieling? LOL.

[Neuro]

Just the labor of applying stucco alone would cost many times more than $2500. Anyone here ever try smearing stucco to a cieling? LOL.
In some countries it is very cheap, depending on labour costs. But I would imagine smearing Stucco to a ceiling is an art form that takes a lot of practice to do without getting statuesque.

[mick silver]

http://equipmentsalesworld.com/resim/putzmeister-a302-mxd-concrete-pumps_2.jpg

[mick silver]

http://media.onevoter.org/images/20120101_Doomsday_shelter/entrance.JPGits cheaper

[Glass]

The Putzmeister?

You kind of shoot it at the walls, ceiling or something?

[monty]

The Putzmeister? You kind of shoot it at the walls, ceiling or something? exactly, it is called shotcrete. Miners use it to stabilize dangerous ground, swimming pool contractors are another group who come to mind.

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[Horn]

Costa Ricans will probably buy this stuff by the boatload.