This document discusses paper-crete, a building material made from recycled paper, cement, and sand. It provides details on the material's composition and properties. The objective of the project was to design and test paper-crete wall panels. Several mixes were tested by casting cubes with different ratios of materials. The cubes were cured and tested to determine compressive strength after 7 and 28 days. Results showed compressive strengths ranging from 1.35 to 4.85 MPa depending on the mix, with oven drying increasing strength compared to air drying. The conclusion is that paper-crete is a lighter alternative to bricks for inner wall construction.

1. Prepared by:-
VIVEK KUMAR

3. KORIA JAPAN CHINA TAIWA
N
HONG
KONG
U.S.
A
CANAD
A
GERMA
NY
U.K FRANCE
Recycli
ngg
ratio%
75.4 72 34 68 80 52 68 75 65 64

5.  This is a recently developed material . It is made
with re-pulped paper-fiber with a combination
of Portland cement and or clay.
 This type of material is considered
environmental friendly material.
 Paper-Crete is essentially a type of industrial
strength paper Mache made with paper and
cardboard, sand and Portland cement.
 It was discovered by Eric Patterson and Mike
McCain.

6.  The objective of this project is to design and
build a rigid, cost effective and economical
inner wall of the structure or building.
 As builders and building owners are
pressurized to use sustainable construction
materials, a previously tassel building material
known as paper-Crete has gained a lot of
popularity amidst the recent greening up
efforts.
 Paper-Crete is a recent technology and its use is
limited to experimental and recreation use.

7.  Paper-Crete is suitable for making low cost
homes with limited longevity and durability.
 It is also suitable for making community
rooms, sale booths, storage rooms and
dwellings for livestock. Paper-Crete can also
be used as a plaster.
 It can be sprayed on walls to give them good
sound and heat insulating properties.

8.  Raw materials are very inexpensive and freely available.
 Equipment used is relatively low-tech and inexpensive.
 Compressive strength of 0.99-1.12 mpa.
 It has excellent heat and sound insulating properties.
 Paper-Crete is light weight and can be used to make
inexpensive roofing alternatives.
 Paper-Crete is very workable and can be formed into
different shapes such as blocks, panels and sheets with
ease.
 It does not catch fire easily but smolders for hours.

9.  It is dimensionally very stable.
 The more cement and mineral material is
used the more fire proof it becomes.
 Resist rodent and insect infestation.
 R-value is about 2.0 and 3.0 per inch.

10.  Literature review.
 Casting of cubes with different material and
with different ratio.
 Curing of cubes. {air dry curing}
 Testing of the compressive strength.
 Permeability test.
 Flame test.
 Conclusion.

12.  FOLLOWING ARE THE DESIGN
TRAILS:-
 45:35:20 { CEMENT: PULP: SAND }
 35:25:20:20 { CEMENT: SAND: PULP: M1 }
 35:25:20:20 { CEMENT: SAND: PULP: M2 }

15.  TEST RESULTS FOR 45:35:20 :-
 COMPRESSIVE STRENGTH FOR 7 DAYS
CUBE NO. STRENGT
H
WEIGHT AVG.
STRENGT
H
1 18.63 KN 4.780
0.980 MPA
2 21.57 KN 4.902
3 25.98 KN 4.930
4* 30.4 KN 3.276 1.35 MPA

16.  TEST RESULTS FOR 35:25:20:20 (METAL 1)
:-
 COMPRESSIVE STRENGTH FOR 7 DAYSCUBE NO. STRENGT
H
WEIGHT
KG
AVG.
STRENGT
H
1 57.3 KN 4.660
1.704 MPA
2 37.56 KN 5.471
3 34.13-
39.13 KN
5.470
4* (28 DAYS) 79.18 KN 5.275 3.52 MPA

17.  TEST RESULTS FOR 35:25:20:20 (METAL 2)
:-
 COMPRESSIVE STRENGTH FOR 28 DAYS
:- CUBE NO STRENGT
H
WEIGHT
KG
AVG.
STRENGT
H
1 116.4 KN 5.310
4.85 MPA2 110.3 KN 5.220
3 100.3 KN 5.065
4* 105.5 KN 5.120 4.688 MPA

22.  During this project we had casted total 12
cubes, i.e. 3 sets. Out of each set 1 cube is
kept for oven drying and remaining cubes for
air drying.
 After casting the cubes we had observed
that compressive strength of the oven dried
cubes is greater than air dried cubes.
 We had also observed that this cube’s fail in
shear only.

23.  From the above results we conclude that
density of the paper-crete is less than the
ordinary bricks density.
 Thus we can use the paper-crete for inner
wall construction in place of bricks which has
high density, thereby they increase the dead
weight of the structure which is reduced by
using paper-crete.