[Attachment(s) from Charmaine Taylor included below]
If you think horizontally…the way adobes are laid rising higher to make a dome then there is a ton of info on this building method.
[Attachment(s) from Charmaine Taylor included below]
Robert Heinlein (1907-1988) "There is no worse tyranny than to force a man to pay for what he does not want merely because you think it would be good for him." (Obamacare)
Attachment(s) from Charmaine Taylor
1 of 1 File(s)
Robert Heinlein (1907-1988) "There is no worse tyranny than to force a man to pay for what he does not want merely because you think it would be good for him." (Obamacare)
Has anyone put Blackjack on an exposed papercrete structure?
I've put it on old composite roofing, and it works great for that.
TASHA
Part way down this page is a photo of Ian Sands with blocks he poured into shaped forms for a dome. I thought this was a fabulous idea,but I've never moved past the admiration stage.Tina in Colorado
http://papercretenm.com/building-with-papercrete.htm
On Sun, Dec 8, 2013 at 5:52 PM, <diggingfortreasure@yahoo.ca> wrote:
Look at this igloo making tool that uses snow.....I wonder if a person could adapt such an idea for placing papercrete block by block?
http://www.grandshelters.com/index.html
Jackie
This looks like a slip form to me, with the added radius connection for forming domes. I used a similar scheme when I did a tire dome, a measurement attached to the center of the sphere and used to place each tire. For years I dreamed of using a commercial curb machine, like is used to make the curbs along streets, but tethered to a dome center instead of guided along a straight line.
Look at this igloo making tool that uses snow.....I wonder if a person could adapt such an idea for placing papercrete block by block?
http://www.grandshelters.com/index.html
Jackie
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Look at this igloo making tool that uses snow.....I wonder if a person could adapt such an idea for placing papercrete block by block?
http://www.grandshelters.com/index.html
Jackie
__._,_.___
Look at this igloo making tool that uses snow.....I wonder if a person could adapt such an idea for placing papercrete block by block?
http://www.grandshelters.com/index.html
Jackie
I'm not sure about refractory cement. I think the clay content and type is what allows it to be used in a fireplace, or high temperature variable space.
Heavy metals, if in the flyash would be bound up in the cured mix, wouldn't they? Isn't the risk with heavy metals getting them into your body?
I recall a recent patent for a very porous non-alkali cement filter that allowed 3 strains of bacteria to live in the cement after cure. It purified contaminated water making a brackish pond clear in a short time. The cement was not Portland but a geopolymer cement (not affordable for me).
Gary
There are 2 types of flyash C & F. I have played with both.
Toxicity? Everything has a toxicity, especially nothing. It is just a measure, like temperature. Water, air, lettuce, aspirin, radon..... everything has a toxicity number.
"Fairly" is a word like "very". It is gut feel and has no quantification. Since flyash is the byproduct of burning coal for energy, the toxicity is not created by using it in a concrete or PC mix. I don't think concrete is more toxic because flyash is added, perhaps less because less Portland is used. The environmental impact of using flyash in the mix is less than using all Portland.
Type F flyash is a bit more expensive, more pozzolonic, and harder to find than Type C. My regular cement product supplier process their own type F. I believe it is Type F from Type C. This apparently removes some of the reputed contaminants in Type C. Type F is a dark gray not the light brown like type C, hence it gives a differently colored finished product. Type C is cheaper than Portland, Type F is about the same price as Portland. I do not know how Type F is processed. It could be that the energy required to process it makes the environmental impact the same as using Portland.
I have heard that road repairs in the cold weather areas use flyash because it lessens the risk of freeze cracking on freshly poured mixes. I notice more plasticity in the mixes I use.
Gary
__._,_.___
There are 2 types of flyash C & F. I have played with both.
Toxicity? Everything has a toxicity, especially nothing. It is just a measure, like temperature. Water, air, lettuce, aspirin, radon..... everything has a toxicity number.
"Fairly" is a word like "very". It is gut feel and has no quantification. Since flyash is the byproduct of burning coal for energy, the toxicity is not created by using it in a concrete or PC mix. I don't think concrete is more toxic because flyash is added, perhaps less because less Portland is used. The environmental impact of using flyash in the mix is less than using all Portland.
Type F flyash is a bit more expensive, more pozzolonic, and harder to find than Type C. My regular cement product supplier process their own type F. I believe it is Type F from Type C. This apparently removes some of the reputed contaminants in Type C. Type F is a dark gray not the light brown like type C, hence it gives a differently colored finished product. Type C is cheaper than Portland, Type F is about the same price as Portland. I do not know how Type F is processed. It could be that the energy required to process it makes the environmental impact the same as using Portland.
I have heard that road repairs in the cold weather areas use flyash because it lessens the risk of freeze cracking on freshly poured mixes. I notice more plasticity in the mixes I use.
Gary
No.
http://en.wikipedia.org/wiki/Fly_ash
Fly ash (at least the ones I have heard of having positive effects) are pozzolanic, unlike wood ash. Wood ash would simply be another filler, like paper but without the higher air entrainment properties of paper pulp.
Obviously, YMMV and feel free to test things out and let us know if you find differently.
- E
--- In papercreters@yahoogroups.com, <diggingfortreasure@...> wrote:
>
> So this might seem like a silly question but would you all think that fine screened ashes from burned fire wood would also serve in a similar way as coal fly ash??
>
> Jackie
>
No.
http://en.wikipedia.org/wiki/Fly_ash
Fly ash (at least the ones I have heard of having positive effects) are pozzolanic, unlike wood ash. Wood ash would simply be another filler, like paper but without the higher air entrainment properties of paper pulp.
Obviously, YMMV and feel free to test things out and let us know if you find differently.
- E
--- In papercreters@yahoogroups.com, <diggingfortreasure@...> wrote:
>
> So this might seem like a silly question but would you all think that fine screened ashes from burned fire wood would also serve in a similar way as coal fly ash??
>
> Jackie
>
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So this might seem like a silly question but would you all think that fine screened ashes from burned fire wood would also serve in a similar way as coal fly ash??
Jackie
[Attachment(s) from Charmaine Taylor included below]
Robert Heinlein (1907-1988) "There is no worse tyranny than to force a man to pay for what he does not want merely because you think it would be good for him." (Obamacare)
Attachment(s) from Charmaine Taylor
2 of 2 File(s)
The use of less water in concrete will not carry over to papercrete in general because you have to have enough water to pulp the paper, which is a lot more than you would use for the equivalent amount of cement for concrete. Workability is probably not going to change much either since pc is already like potter's clay in workability. It may slightly affect the cost of the mix - if flyash is cheap and local.
Browsing in Scribd, as suggested by Charmaine, I found an article on fly ash. I think it says that we should put as least as much fly ash in our papercrete as concrete. Fly ash is little spheres of glass, so it increases the insulation. It improves the properties of the concrete. It makes it more workable and allows the use of less water. It should reduce the cost of the mix. Hopefully, these advantages will carry over to papercrete.
--
Toward freedom,
Bobby Yates EmoryNo virus found in this message.
Checked by AVG - www.avg.com
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SCRIBD is the best site- many many free books-- ON ANY TOPIC- amazing- I put up my own writing- they pester you until you contribute YOUR works.
GO TO WWW.SCRIBD.COM search by key word--
they want you to upload your own writing- anything is acceptable that is
useful-- maybe write up your experience on building something- or what you know?
but it will annoy you until you do donate something. But you can get
them books and info free, so it is worth it.
BOOKS AT SCRIBD I HAVE FOUND :
USE THE 7 OR 8 DIGIT CODE IN THE 'SEARCH' BOX TO FIND THESE TITLES: (MANY of the following titles are ALREADY on my CD GUIDES, or ONLINE via Papercrete.com).
http://www.scribd.com/doc/24483114/Laurie-Baker-Appropriate-Building-Technolog
22297131-Organic-Additives-to-Clay.pdf
22297251-Clay-Tile-Manufacture.pdf
20140092-The-Ecology-of-Building-Materials.pdf
20682878-Building-Green.pdf
21813671-Taylor-Earth-Plaster-Report.pdf
17734996-Geen-Building.pdf
18664531-Papercrete.pdf << LOTS of misinformation here
15195565-Casa-Din-Paie.pdf
17051427-Clay-Based-Technologies.pdf
8456643-Green-Build.pdf
8733544-Blockwork-Plastering.pdf
8451221-Earth-Building.pdf
8331565-Building-With-Stone-And-Earth-Part-1.pdf
8331631-Building-With-Stone-And-Earth-Part-2.pdf
903511-Most-Unusual-Buildings-on-Earth.pdf
931856-Laboratory-Test-of-Volcanic-Ash-as-Concrete.pdf
http://www.scribd.com/doc/49061603/Wickes-Plaster# Plastering old fashion way
Robert Heinlein (1907-1988) "There is no worse tyranny than to force a man to pay for what he does not want merely because you think it would be good for him." (Obamacare)
