Papercreters: [papercreters] Re: Additives

Curious now about other additives...

Anyone else out there putting novel things in your recipes?

Anyone have any experience or insights to share around these three
additives on the market?:

1.QuickCure
2.Cal-Seal
3.Rockcrete (Colloidal Aluminum Silicate Dispersion):

Info:

*/Advanced Concrete Additives And Chemicals-/* QuickCure®
<http://www.fiberfoamconcrete.com/concreteadditives.html> - Concrete
&Cement Hardening Compound - /An essential compound for keeping aerated
and water logged papercrete from shrinking during casting. Great for
making lightweight, strong and nice uniform looking blocks./ */#QC10 -
10 lb. bag only $39.95 plus $12.94 S&H/* QuickCure makes any types of
Portland and Plastic-cement 'Gel-Cure' within 5 to 60 minutes depending
on the dose. A 10 lb. bag can treat 2 tons of papercrete or conventional
concrete. When using fast curing compounds it is vitally important that
the concrete remain perfectly still after pouring and finally reaching
the 'GelCure' point /(turning from a liquid into a solid)./ After
concrete gels any movement will create dozens of micro fractures that
may weaken the final product. However if you keep it still the overall
quality and strength of the cement will be as good or better than it's
initial ratings. You will add the QuickCure to your cement mixer about 2
minutes before you are ready to pour. After 2 minutes of mixing you will
have about 30 minutes of work time assuming the dose was about 4 ounces
of QuickCure added to about 200 pounds of your concrete mixture. Just so
you understand QuickCure's variability adding an 8 ounce dose will gel
your 200 lbs. of concrete in about 10 minutes while adding just a 1
ounce dose will gel it in about 2 hours. These dosing amounts are only
general guidelines and small scale experimentation is advised before
dosing huge batches. Read the full instructions when you receive your
QuickCure hardening compound to learn more. *Caution!* We over-dosed a
batch of concrete with QuickCure last year and watched it turn from a
liquid into a solid is just seconds! Ordinarily this would have been a
joyous moment except it happened in the mixer *: / *QuickCure is a
highly concentrated additive so seemingly tiny amounts can make major
changes in the concrete matrix. Practice and use only a little at first
until you gain some experience. Use less on hot days and more in winter.
*How does QuickCure work? *It simply attacks the Gypsum found it most
cement formulations. Cement manufacturing companies add Gypsum into
their formulations to retard set time. Portland cement by it's very
nature would set almost instantly on contact of water if it did not
contain set time retarding chemicals like Gypsum. QuickCure is designed
to attack the Gypsum timing mechanism's and neutralizes them quickly or
slowly depending on the dose you choose. Ironically one of the greatest
enemies of any cement's long term integrity is Calcium Sulfate (Gypsum).
Buy adding QuickCure® you are actually lengthening the total life cycle
of your cement indefinitely by causing a chemical reaction that will
eventually cause petrification of the paper. If you have ever seen a
petrified tree it's very tough and in many cases millions of years old.
In other words you could be creating a masonry product that could last
for thousands of years instead of just 150 which by-the-way is the
maximum life cycle for many concrete structures built or poured today.
Most of those big concrete parking garages you see today will need to be
demolished in just 4 or 5 generations from now due to concrete failure
caused by the cheap chemistry of modern cements. Building more permanent
structures with better cement chemistries would be a nice gift to pass
down to future generations that will not doubt be looking for durable
housing that is earthquake and fire proof. *CalSeal®* - /Advanced
Concrete Technology Here today./ /When CalSeal® is added into any
concrete mixture it will render it totally water proof. Great for making
totally water proof stucco's. Helps your structures last indefinitely by
keeping all water away from your bricks or adobe. CalSeal® is a must for
concrete and block homes in rainy areas of the county./ /Completely
waterproofs slip formed basement walls. Use CalSeal® when stuccoing
pools and ponds./ /Excellent for treating footing blocks and making thin
ferrocement roofs totally waterproof. Great for ferrocement boat hull
builders. (Ferrocement is interesting stuff so do some web searches on
it : )/ */A must have item for stuccoing over all abode or mud brick
structures!!!! Water is the enemy of mud, rammed earth and adobe. Keep
it dry and watch it last forever!!!!/* /Use a 1/2% ratio in all
concretes high in lime content or a 1% ratio in standard high strength
cement mixtures./ /One gallon size $49.95 plus $11.94 S&H - Enough to
treat 1 cubic yard of lime stucco./ *Rockcrete® *Coming soon.
/(Colloidal Aluminum Silicate Dispersion)/ /Rockcrete® is sold only as a
dry powder packaged in 5 gallon pails. It is soluble in water and foams
a clear solution./ /It will thicken concrete mixtures and can be used as
a topical coating to waterproof and toughen all types of cretes./ /When
air dried it is clear and is as hard as porcelain. When soaked into
paper and then air dried it makes paper as hard as rock. A very
interesting compound with endless uses./

--- In papercreters@yahoogroups.com, "mountainfair" <yahooposting@...>
wrote:
>
> Interesting to hear about additives and other things to introduce into
> the mix!
>
> I have to admit this is the first time I have ever heard of metakaolin
> - I found some info here, but am hoping you can educate me a bit
further:
>
> http://en.wikipedia.org/wiki/Metakaolin
>
> Sounds like it has to be heated, similarly to portland. Please teach
> me more if you can...
>
>
> similarly for perlite (which I have heard of but am not familiar with):
>
> http://en.wikipedia.org/wiki/Perlite
>
> Are you using expanded or non expanded perlite (might be a dumb
> question, I dont know if both are event used). Sounds like expanded
> perlite is heated as well... Sounds like perlite increases the
> insulative properties? Can you tell me more about perlite?
>
> Thanks!
>
> Eli
>
>
>
>
>
>
>
>
>
>
> --- In papercreters@yahoogroups.com, "clydetcurry" <clyde@> wrote:
> >
> > I aggree with every thing you said - What we have been able to do , so
> > far is to extend the portland 20% replacement by weight with
> > metakaolin high reactivity pozzalon and then extend that mix by 600%
> > with perlite aggregate- its cheap,dimensionally stable,eco freindly
> > and fire resistant- and yes sir we still have a long way to go -
> > apparently magnesium can be extracted from sea water, the problem
> > seems to be that phosphate is the likely element to combine it with---
> > In papercreters@yahoogroups.com, "mountainfair" <yahooposting@> wrote:
> > >
> > > I believe that the difference is that the CO2 that we exhale was
taken
> > > out of the atmosphere recently, and does not affect the carbon
> > > balance, while the CO2 from fossil fuels has been in the ground for
> > > millions of years and does affect the atmospheric balance of carbon
> > > when released.
> > >
> > > Also, just as the straw bales and other materials may have been
> > > trucked in from out of state, the portland cement you are using was
> > > probably trucked in from fairly far away as well.
> > >
> > > There are some other factors stacked against portland cement - there
> > > are currently large debates here in CO over concrete plants that are
> > > burning tires in their kilns and releasing dioxins and other nasty
> > > stuff that neighboring communities are not happy about.
> > >
> > > In some areas of the world the limestone used for making cement is
> > > stripmined, displacing native people and destroying large amounts of
> > > wildlife habitat. The same could be said for a lot of the coal that
> > > is used as well, as well as drying up aquifers to transport the coal
> > > in slurry form.
> > >
> > > With adobe and rammed earth, you would also have to ask what is the
> > > footprint of running fossil fuel machinery to excavate, sift and mix
> > > the dirt and hydraulically compress the earth. Unless, of course,
> > > they are running the machinery on biodiesel.
> > >
> > > Apparently there are emerging alternatives:
> > >
> > > Carbon neutral concrete:
> > >
> > > http://www.ecocem.ie/
> > >
> > > and
> > >
> > > • ecocement – magnesium based replacement for ordinary (portland)
> > > cement which soaks up (sequesters) carbon dioxide as it cures. A
sharp
> > > contrast to portland cement. Experts predict it will take 10
years for
> > > this to be a feature in the market place. We aim to help this
> > > innovation get over the market inertia and shrink this time frame.
> > >
> > >
> > >
> > >
> > > --- In papercreters@yahoogroups.com, "clydetcurry" <clyde@> wrote:
> > > >
> > > > in other words- if we sit around debating for a year over the
> fact we
> > > > will exhale more CO2 than building our house would have produced-
> > > > amazing- boy am I glad you folks have gotten around to this -
> Clyde T.
> > > > Curry--- In papercreters@yahoogroups.com, Greg House <ghunicycle@>
> > > > wrote:
> > > > >
> > > > > My father worked in the cement and lime production
industries most
> > > > of his life. From what I've seen from his work, most cement
> kilns are
> > > > fired with coal.
> > > > >
> > > > > Greg
> > > > >
> > > > > ----- Original Message ----
> > > > > From: Mikey Sklar <sklarm-yahoo@>
> > > > > To: "papercreters@yahoogroups.com"
<papercreters@yahoogroups.com>
> > > > > Sent: Wednesday, August 8, 2007 10:32:47 AM
> > > > > Subject: Re: [papercreters] Re: 26lbs of CO2 per bag of Portland
> > > > >
> > > > >
> > > > >
> > > > >
> > > > >
> > > > >
> > > > >
> > > > >
> > > > >
> > > > >
> > > > >
> > > > >
> > > > >
> > > > > When Portland cement is being made from limestone,
> > > > natural gas or
> > > > >
> > > > > propane is used to heat the limestone. White portland would
> have a
> > > > >
> > > > > even higher CO2 footprint as it is cooked longer.
> > > > >
> > > > >
> > > > >
> > > > > On Aug 8, 2007, at 9:21 AM, "slurryguy" <slurryguy@yahoo. com>
> > wrote:
> > > > >
> > > > >
> > > > >
> > > > > > Does clinker outgas CO2 as it is getting fired? How much?
> > > > >
> > > > > >
> > > > >
> > > > > > I'm not disagreeing with your overall point. I actually
agree.
> > > > >
> > > > > >
> > > > >
> > > > > > --- In papercreters@ yahoogroups. com, Mikey Sklar
> > > <sklarm-yahoo@ ...>
> > > > >
> > > > > > wrote:
> > > > >
> > > > > >>
> > > > >
> > > > > >>
> > > > >
> > > > > >> I have been tormented by a few local adobe and straw bale
> > builders
> > > > >
> > > > > >> for my use of Portland cement. They point out to me that by
> using
> > > > >
> > > > > >> a high energy product that I am destructive to the
> environment. I
> > > > >
> > > > > >> had my doubts and decided to run some numbers this evening
> about
> > > > >
> > > > > >> just how much CO2 was being produced to create a bag of
> portland.
> > > > >
> > > > > >> The answer I came to was less than 26lbs of CO2 per 94lb
bag of
> > > > >
> > > > > >> portland. I suppose I can now point out to the so called
green
> > > > >
> > > > > >> builders who are hauling straw bales or pre made adobes from
> > across
> > > > >
> > > > > >> state boarders that their CO2 footprint is orders of
magnitude
> > > > >
> > > > > > larger
> > > > >
> > > > > >> than my own.
> > > > >
> > > > > >>
> > > > >
> > > > > >> - portland cement 4,700,000 million btu per ton
> > > > >
> > > > > >>
> > > > >
> > > > > >> - convert btu's per ton to one bag of Portland (94lbs)
> > > > >
> > > > > >> * 1 ton 2000lbs
> > > > >
> > > > > >> * 2000 / 94 = 21.28
> > > > >
> > > > > >> * 4700000 / 21.28
> > > > >
> > > > > >> * 22,0864.66 btu's per bag
> > > > >
> > > > > >>
> > > > >
> > > > > >> - convert btu's of natural gas to pounds of CO2
> > > > >
> > > > > >> * 1 million BTUs (NG) will produce 117.08 pounds of CO2
> > > > >
> > > > > >>
> > > > >
> > > > > >> - convert btu's per ton of portland to pounds of CO2
> > > > >
> > > > > >> * 4,700,000 / 1,000,000 = 4.7
> > > > >
> > > > > >> * 4.7 * 117.08
> > > > >
> > > > > >> * 550.276 lbs of CO2 per ton of Portland made from
Natural Gas
> > > > >
> > > > > >>
> > > > >
> > > > > >> - convert lbs of CO2 per ton of Portland to bag of Portland
> > > > >
> > > > > >> * 550.276 / 21.28
> > > > >
> > > > > >> * 25.86 lbs of CO2 per bag of Portland
> > > > >
> > > > > >>
> > > > >
> > > > > >> When we consider that jet fuel, diesel, and car fuel all
> produce
> > > > >
> > > > > >> about 20 lbs of CO2 per gallon we can see that a bag of
> Portland
> > > > >
> > > > > >> is producing the same amount of CO2 as driving 20 miles
in your
> > > > >
> > > > > >> truck.
> > > > >
> > > > > >>
> > > > >
> > > > > >> If you want to bring yourself to neutral on CO2 for your
> Portland
> > > > >
> > > > > >> usage. Consider that the average tree will absorb 26lbs of
> > CO2 per
> > > > >
> > > > > >> year.
> > > > >
> > > > > >>
> > > > >
> > > > > >> Keep in mind that we humans on average exhale over 2lbs of
> > CO2 per
> > > > >
> > > > > >> day.
> > > > >
> > > > > >>
> > > > >
> > > > > >
> > > > >
> > > > > >
> > > > >
> > > > > >
> > > > >
> > > > > >
> > > > >
> > > > > >
> > > > >
> > > > > > Yahoo! Groups Links
> > > > >
> > > > > >
> > > > >
> > > > > >
> > > > >
> > > > > >
> > > > >
> > > > > >
> > > > >
> > > > >
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> > > > >
> > > > >
> > > > >
> > > > >
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> > > > >
> > > > >
> > > > >
> > > > > 
> > > > >
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> > > > >
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> > > > >
> > > > >
> > > > >
> > > > >
> > > >
> > >
> >
>
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> > > >
> > >
> >
>

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Wednesday, August 15, 2007

[papercreters] Re: Additives

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