Re: [papercreters] Re: FLYASH..rice hulls/ash (RHA)

isn't fly ash fairly toxic?i haven't got my notes with me but I did research it once and it sounded a little bit scary from memory?

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From: eepjr24
Sent: ‎Tuesday‎, ‎December‎ ‎3‎, ‎2013 ‎2‎:‎05‎ ‎PM
To: papercreters@yahoogroups.com

 

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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[papercreters] Re: FLYASH..rice hulls/ash (RHA)

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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[papercreters] RE: FLYASH..rice hulls/ash (RHA)

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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[papercreters] FLYASH..rice hulls/ash (RHA) [2 Attachments]

[Attachment(s) from Charmaine Taylor included below]

Bobby- the entire OPC industry  has looked at various additives for years to reduce costs and weight /amount of cement from their mixes.  most average people can't get 'real' flash, but might be able to get rice hull ash or similar. rice hulls themselves are little ovals with an air pocket inside, when burned the ash works even better.  mixing hulls with paper is just one more reason I call papercrete an "idea"..the options to add organics and others are endless..

does 

does eveyone have the 14 page paper on Rice Hull House building by Oliver?  if not I ca add it here and hope it is accessible.

also Stephens build earth bag huts of rice hulls..lightweight, insulating.

Use of fly ash

 I think it says that we should put as least as much fly ash in our

papercrete as concrete.  
<http://www.concretebasics.org/articlesinfo/fa1.php>

--  Bobby 

--

Charmaine

Charmaine Taylor/Publishing & Elk River Press
PO Box 375 Cutten CA 95534
www.papercrete.com

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)

 

 
 

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Attachment(s) from Charmaine Taylor

2 of 2 File(s)

RiceHullHouseOlivier.pdf

www.greenershelter.com-ricehullhut.pdf

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Re: [papercreters] Use of fly ash

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.

On 12/2/2013 11:31 PM, Bobby Yates Emory wrote:

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.

<http://www.concretebasics.org/articlesinfo/fa1.php>

--
Toward freedom,

Bobby Yates Emory

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[papercreters] Use of fly ash

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.

<http://www.concretebasics.org/articlesinfo/fa1.php>

--
Toward freedom,

Bobby Yates Emory

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[papercreters] HIGHEST R VALUE PC + FREE ARTICLES/BOOKS

Good heavens, I tied to post  my reply thru the Yahoo site...sorry for all the garbage text!!!

AIR entrainment is what will give the R value,sand and heavy additives will
just offer mass..there is a trade off of 2' thick clay/adobe wall that
soaks up sun, vs a 40" straw bale that keeps warmth in and cold out at R 50
both opposites.

the best of both is a fluffy papercrete very thick, but lightweight,where
as water evaporates air pockets remain.

in the cement/concrete world adding the flyash and other air entrainment
liquids ( to cause bubblers) lighten the cement and insulate better, again
they seek the best of both.

i'd research how the cement/concrete makers do this for real info, as the
PC world is all individual experiments without the serious, rigorous
testing.

I've seen several articles on this type of insulating research online.

this BOOK-- 20469839-Advanced-Concrete-Technology  IS FREE to READ 

 is 280 pages of all things concrete and has tech info on air additives.

it can be found on the site www.scribd.com, or in my Guides asa freebie

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

--  

Charmaine

Charmaine Taylor/Publishing & Elk River Press
PO Box 375 Cutten CA 95534
www.papercrete.com

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)

 

 
 

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