a new technique of building a home with less weight and greater safety

1. PAPERCRETE

2. PAPERCRETE
 What
 Manufacture
 Mass production
 Properties
 Strength
 Commercial Acceptance
 Case Studies

3.  WHAT…
Papercrete is a constructional material which
consists of re-pulped paper fiber
with Portland cement/clay or
other soil added.
 WHEN…
First patented in 1928 and
revived during 1980s
 WHY…
It has low environmental
impact and is very cheap because it is made of
recycled material, and is great
for isolation

4. MANUFACTURE Paper…
May be old news papers, junk
mails or pretty much anything.
 Soak…
Soak the paper in water
 Mix…
the paper with cement or mud
until you get a consistency
similar to oatmeal
– Pour…
Into the blocks and then use the same link to
glue the blocks

5. MASS
PRODUCTION

6. Mason Greentsar…
Only commercially viable papercrete manufacture.
Materials…
Comprised of recycled short-fiber
cellulose(newspapers, phonebooks, lottery tickets
etc)cement and two part organic admixture.
Greenstar Blox®...
are produced in a 10"x14"x4" building block,
replicating the traditional adobe size .Can be cast into
various shapes, sizes, and forms.

7. MATERIAL
PROPERTIES
 Good insulator...Paper fiber
strap the air and when the water
drains out, leaves tiny air pockets
which result in an R-value equal to
2-3 R/inch.(more than insulating
materials).
 Lightweight...papercrete blocks are
80% air and thus are less than third
of the weight of a adobe brick.
 Sound-proofing...can be applied as a sound-proofing

8. MATERIAL
PROPERTIES
 Works as a Sponge...Cured
Papercrete acts like a sponge
unless it is coated with
something to stop the entry of
water.
 Not a Problem...because
there is nothing in the wall that would be damaged by water,
even if it got past the papercrete layer, which it rarely or never
does
 New Concept...a roof: a sponge that welcomes the moisture,
and then simply give it back to the atmosphere through
evaporation.

9.  Compressive Strength...is
reported to be in the 140-260
psi range. Although a low
number it is sufficient for many
low height buildings.
 Tensile Strength...a block is
equivalent to 100 pages of paper thus tensile strength
is fairly good.
 Shear Strength...It is hard to pull a piece of paper apart
but ripping it is easy and thus shear strength is poor so
it should be reinforced.
MATERIAL
STREngTh

10. COMMERCIAL
ACCEPTAnCE
 Code...As of 2007, papercrete
lacks approval from the
International Code Council. This
limits the use within city limits of
most U.S. cities where building
codes apply.
 Application...Cannot be used
as a load-bearing wall where codes apply, however its
strength in model structures has been proven.
 Durability...Little evidence of long term durability yet

11. StructureS
from PaPercrete

12. fIre
reSIStaNce
This paper Crete, coated
with a boric solution, was
held in an open flame for two
minutes.
After two minutes in the
fire, it blackened but did not
catch fire,
smolder or burn.

13. ProPertIeS
Dried Concrete has very low strength
Papercrete provides good insulation
R-value is about 2.0 and 3.0 per inch
Lightweight
Its mold resistant material and can be
used as a sound-proofing material.
Compressive strength of 140-160 lb/sq in

14. coNtINued…
It is dimensionally very stable
Does not support flames and will smolder
for days.
The more cement and mineral material is
used the more fire proof it becomes.

15. dIS
advaNtageSSafety factors. There are many variations
in creating papercrete that no one know
which one is the best.
There is no way to get a loan using it as
collateral
Papercrete is still not classified as
anything and therefore it is hard to find a
good creditor willing to give you a loan and
if one finds one the rates might be higher.

16. advantages
Environmentally Friendly : One of the major
components in landfills today is paper is paper.
By using paper in building we can significantly
reduce the amount of paper ending up in landfills.
Light weight, But strong
It is much easier for someone to lift 5 pound
papercrete blocks all day than 35 pound
papercrete blocks
Easy to use : Papercrete can be easily be moulded
into just about any shape.

17. advantages
 Decorations can be made as though using paper Mache
 Insulating : When using concrete, heat from the sun will
heat the wall up and the concrete will allow that heat to
pass all the way through and radiate into the interior of
the house.
 Paper, on the other hand does not allow for the transfer
of heat even though the son may beat down on the
papercrete wall all the day the heat will not transfer
through to the interior.
 Low Cost : Because structures made with papercrete are
95% recycled materials, the cost is very low.

18. The Constructions done by the papercrete
are Very light in weight. so in earth quake
regions these are very helpful by reducing
the life losses and the property losses.
Because of the cheapest construction by
this papercrete poor people will construct
easily.
COnCLUsIOn