1. Concrete Cloth
changing the way you think about concrete
Submitted by :
Sandeep Kumar Meena (08515603414)

2. ABSTRACT
Worldwide there is increasing demand of construction and
construction materials, for that concrete is most extensively used
material in construction. These days concrete is used for so many
purposes in many different adverse conditions. There are many
advantages of concrete but there is one drawback is that, it is not
flexible, when it is hardened. To overcome this drawback of
concrete. A new construction material is in evolution called
concrete cloth or concrete canvas.

3. INTRODUCTION
oConcrete cloth is an upcoming revolution in civil world, which in
turn have a wide range of application in rapid construction, in
state of emergency etc. due to its own physical property, mainly,
flexibility and easy to use. Among various engineering applications
of 3D spacer fabric reinforced cementitious composites; concrete
canvas (CC, the concept was first proposed by Brewin and
Crawford in 2005) is one of the most promising products.
oConcrete cloth consists of a 3- dimensional fiber matrix containing
a specially formulated dry concrete mix. A PVC backing is provided
on one surface to make it water proof. The other side of the cloth
is aided with a hydrophilic fiber (polyethylene and polypropylene
yarns) and thus hydration occurs by drawing water into the
mixture.

4. INTRODUCTION
oCompared to traditional concrete solutions, it is faster, easier and
more cost effective to install and has the additional benefit of
reducing the environmental impact of concreting works by up to
95%.Typical installation speeds are up to 10 times faster than
conventional concrete solutions.

5. WHAT IS CONCRETE CLOTH?
“Concrete cloth is a flexible,
concrete impregnated fabric
that hardens when hydrated
to form a thin, durable,
water proof and fire resistant
concrete layer.”
source www.nextbigfuture.com

6. HISTORY OF CONCRETE CLOTH
oWith intention of finding a new material in practice with a
property of flexibility and easy to work. The British engineering
company had found the revolutionary material, concrete cloth.
This revolutionary new material takes its own place in the history
of Civil engineering, took the concrete work in a completely new
way.
oThis technology was first found for emergency shelters,
application to military world and believed that it may not be
commercial construction work. But further research in concrete
cloth made incredible changes in the construction field.

7. MATERIAL PROPERTIES
Strength
Physical properties

8. TYPICAL STRENGTH
CHARACTERISTICS
• The test is based on ASTM C473-07.By the test
the 7 day minimum compressive strength is
equal to 38 MPa .
Compressive
testing
• This tests based on ASTM C-1185. The test is
used to determine the ability of material to
resist the bending. The 7 day minimum bending
stress is equal to 3.3 MPa and 7 day modulus
minimum is equal to 180 MPa.
Bending test

9. TYPICAL STRENGTH
CHARACTERISTICS
• ASTM C1353-8 is the standard test method to
determine abrasion resistance of the material.
CC lost 60% less weight than marble over 1000
cycles.
Abrasion
resistance
• Test is based on EN ISO 12236:2007. The test is
used for CC8& CC13. The minimum push-
through force is equal to 2.69 kN and the
maximum deflection at peak is 38 mm.
CBR Puncture
resistance

10. TYPICAL PHYSICAL PROPERTIES
• Setting time : The time between the end of mixing and initial
set of a material made with a hydraulic binder or the hydraulic
binder itself. The initial setting time should be greater than or
equal to 120 minutes and the final setting time is greater than or
equal to 240 minutes. Concrete canvas will achieve 70-80%
strength in 24 hours after hydration.
• Density : The dry density of Concrete Cloth before hydration is
1500 kg/cc Upon Complete hydration the density increases 30-35%
to a range of about 1950-2025 kg/cc.

11. TYPICAL PHYSICAL PROPERTIES
• Thickness : Concrete Canvas is available in 3-thicknesses; CC5,
CC8 & CC13, which are 5,8 & 13 mm thick respectively. There is
theoretically no limit to the thickness of the fabric, although it
will generally be limited by the manufacturing techniques used to
produce it. A typical thickness would be between 2 and 15mm.

12. MARKET AVAILABILITY
oConcrete cloth available in two standard roll size :
Bulk roll :
1.6T weight
Supplied on 6 inch
cardboard tube

13. MARKET AVAILABILITY
 Portable batched roll :
Supplied on 3 inch
cardboard tube

14. MARKET AVAILABILITY
CC Type Thickness
(mm)
Roll
Width
(mm)
Dry
Weight
(kg/sqm)
Batched
roll
length
(m)
Batched
roll
coverage
(sqm)
Bulk roll
length
(m)
Bulk roll
coverage
(sqm)
CC5 5 1000 7.0 10 10 200.0 200
CC8 8 1100 12.0 4.5 5 113.6 125
CC13 13 1100 19.0 N/A N/A 72.7 80

15. METHOD OF HYDRATION
oConcrete cloth can be hydrated using saline or non-saline water.
oThe minimum ratio of water to Concrete Cloth is 1:2 by weight.
oIt cannot be over hydrated so an excess is recommended.
o The recommended methods of hydration are :
 Spraying
 Immersion

16. METHOD OF HYDRATION
• Spray the dry concrete cloth with water until it
is saturated.
• Do not use a direct jet of pressurized water as
this may wash a channel in the material and
create a weakened area.
Spraying
• concrete cloth immered in water for a
minimum of 90 second.
Immersion

17. ADVANTAGES OF CONCRETE
CLOTH
Rapid : The material can be hydrated by either spraying it or
fully immersing it in water.
Easy to use : Dry concrete cloth can be cut using simple hand
tools such as utility knives.
Flexible : Concrete cloth can be easily nailed through before
setting.
Environment Friendly

18. ADVANTAGES OF CONCRETE
CLOTH
Strong : The fiber reinforcement acts to prevent cracking,
absorb energy from impact and provides a stable failure mode.
Fireproof : Concrete cloth is a ceramic based material and
will not burn.
Durable : Concrete cloth is chemically resistant and will not
degrade in ultraviolet light.

19. APPLICATION OF CONCRETE
CLOTH
Ditch Lining
Concrete cloth can be rapidly unrolled to
form ditch lining.
It is quicker and less expensive to install
than conventional concrete ditch lining.

20. APPLICATION OF CONCRETE
CLOTH
Slope Protection
Concrete cloth can be used as slope
stabilization.
Concrete cloth can also used as erosion
control application.

21. APPLICATION OF CONCRETE
CLOTH
Pipeline Protection
Concrete cloth can be used as a coating for overland
or underground protection, providing a superior tough
rock shield.
In remote areas it can be used to coat steel pipe on
site without expensive wet concrete.

22. APPLICATION OF CONCRETE
CLOTH
Reinforcing Sandbags
“January 2008 a notable amount
of concrete cloths are laid in the
frontline in Afghanistan to analyse
the field usage and the
performance which is satisfactory
for U.K. army, as a reward the
manufacturer got a huge order of
concrete cloths of 5500 sq.m to
the frontline of Afghanistan by
U.K. ministry of defence”

23. APPLICATION OF CONCRETE
CLOTH
Dust
suppression
system in
helipad

24. APPLICATION OF CONCRETE
CLOTH
Mining Application Bund Lining

25. LIMITATION OF CONCRETE CLOTHS
 Concrete cloth be over hydrated and an excess of water is always
recommended.
 Do not jet high pressure water directly onto the concrete cloth as
this may wash a channel in the material.
 Concrete cloth has a working time of 1-2 hours after hydration so
do not move concrete cloth once it has begun to set.
 If concrete cloth is not fully saturated, the set may be delayed
and strength reduced.

26. CONCLUSION
“ Concrete cloth is a unique proprietary material. It is a time and
material saving technique. It is very easy to place and handle.
Concrete cloth allows concrete construction without need for plant
or mixing equipment. Concrete cloth design life is 10 years. It is
specially used where workmanship is very difficult.”

27. REFERENCES
 www.concretecanvas.co.uk
 www.concreteinternational.com
 www.buildingproduct.co.uk

28. THANK YOU