BAMBOO USE AS A BUILING MATERIAL.

1. BAM BOO U S E AS A
BUILDING MATERIAL
HIMANSHU KUMAR (1606467)
PARTH DWIVEDI (1606512)
RAHUL SHARMA (1606527)
DEPARTMENT OF
CIVILENGINEERING

2. CONTENTS
INTRODUCTION
OBJECTIVE
GENERAL USE
METHODOLOGY
PROPERTIES
THE WORKING OF BAMBOO
BAMBOO OF HOUSING
CONCLUSION
REFERENCES

3. INTRODUCTION
 Since ancient times, it is a low cost material for
construction.
 Natural material with a high strength to weight
ratio.
 Bamboo is a renewable and versatile resource,
characterized by high strength and low weight.
 It is estimated that there are 1200 species
growing in about 14.5 million hectares area.
 Bamboo is the world’s fastest growing plant, it
approximately grows 7.5 to 40 cm a day, with
world record being 1.2m in 24 hours in Japan

4. O B J E C T I V E S
 To check and compare the (7days, 28days)
Strength of concrete reinforced with
bamboo and steel in beams and columns.
 To study the modern construction
techniques for bamboo use in construction
of building elements.

5. GENERAL USE
 Removing atmospheric carbon.
 Paper and pulp industry.
 Boards and furniture.
 Small scale and cottage industries for
handicrafts. and other products.
 Building and construction.
 Fuel source.
 Soil stabilization.

6. LITERATURE REVIEW
BY- Suresh Bhalla et. all (International Organisation of
Environmental Research, Goa, 18-20 Dec. 2008). “BAMBOO
AS GREEN ALTERNATIVE TO CONCRETE AND STEEL
FOR MODERN STRUCTURES” Despite of the long tradition
of building with the bamboo, the material is not used frequently
in modern building construction. Bamboo can be a perfect
alternative for steel in the present and the future, as it possesses
all the required mechanical properties, and can perfectly replace
steel, depending on the situation and the application.
Tjerk Reijenga “Role of bamboo in Green Building design”. In
this project we are comparing steel reinforcement with bamboo
reinforcement, replacement of steel with bamboo while
reinforcing.

7. SELECTION OF BAMBOO SPECIES
 It should be available in large quantity from near
by plantations.
 Transportation should be economic.
 It have good engineering properties.
We should considering these factors, Dendrocalamus
Strictus is selected as it is available in abundance in the
region and has good engineering properties to be used as a
construction material.

8. BAM B O O S I Z E S
Bamboo sizes are generally specified by minimum
diameter, wall thickness, and length.
 Column 80-100mm dia , wall thickness 10-12mm dia.
 Bamboo strips for infill panels – 18-20mm wide, 8-10mm
thick.

9. METHODOLOGY
SELECTION OF MATERIAL
TEST PERFORMED
FINALISING MIX DESIGN PROPORTION
CASTING OF BEAMS AND COLUMNS
CHECKING AND CALCULATION OF STRENGTH
COMPARISON

10. PROPERTIES
PROPERTIES OF
BAMBOO
COMPRESSIVE
STRENGTH
ANISOTROPIC
PROPERTIES
SHRINKAGE FIRE
RESISTANCE
ELASTIC
MODULUS
TENSILE
STRENGTH

11. TENSILE STRENGTH
 The common tensile stress in steel reinforcement
is 160 N/mm2 and in bamboo 370 N/mm2.
 The mass per volume of steel is 7850 kg/m3 and
of bamboo is about 500-600 kg/m3.
COMPRESSIVE STRENGTH
As we know that bamboo show anisotropic property. The
portion of lignin inside the culms affects compressive
strength, whereas the high portion of cellulose influences the
buckling and the tensile strength as it represents the building
substanceofthe bamboofibers.

12. ELASTIC MODULUS
The higher the elastic modulus, the higher is the quality of
the bamboo. Enormous elasticity makes it a very useful
building material in areas with very high risks of
earthquakes. The E-modulus for cellulose is 70,000 N/mm2
and about 50% of the cross-section of the fiber is
cellulose; the E of the fiber is 35,000 N/mm2.
ANISOTROPIC PROPERTIES
There are cellulose fibres in the longitudinal
direction, which is strong and stiff and in the
transverse direction there is lignin, which is soft and
brittle.

13. SHRINKAGE
Bamboo shrinks in a cross section of 10 -
16%.Therefore it is necessary to take necessary
measures to prevent water loss when used as a
building material.
FIRE RESISTANCE
The fire resistance is very good because of
the high content of silicate acid. Filled up
with water can stand a temperature of 400° C
while the water cooks inside.

14. BAM BOO HOUSING
 The majority of bamboo construction relates to
the rural community needs in developing.
 Common types of construction include farm and
school buildings and bridges.
 Further applications of bamboo relevant to
construction include its use as scaffolding,
water piping and as shuttering and
reinforcement for concrete.

15. THE WORKING OF BAMBOO
SPLITING SHAPING BENDING
METHODS

16. SPLITING
The cane is split in
halves and quarters and
then driven apart by a
wedge. It can also be
split with a knife frame
into four or eight
segments.
SHAPING
Bamboo available in nature
is usually circular in cross.

17. BENDING
Freshly cut, bamboo can be bent by
heating and will keep his shape after
drying.
When heated above 150° C, bamboo
starts changing its shape and remains
as such after it goes cold.

18. CASTING OF COLOUMN AND BEAM
• Dimension of beam – 50 cm x 10 cm x 10 cm
• Dimension of column – 15 cm (diameter) x 30 cm (depth)

19. TEST PERFORMED
Flexural test Compression Test

20. TEST RESULTS(BEAM)
Typeof
reinforcement
Test days Load (ton) x-sectional
area
strength
Steel 7 3.31 50*10 65.01
Steel 28 5.09 50*10 100.01
Type of
reinforcement
Test days Load(ton) x-sectional
area
Strength
bamboo 7 1 50*10 19.11
bamboo 28 1.49 50*10 29.4

21. TEST RESULTS(COLUMN)
Test days Load(kgf) strength
STEEL 7 6760 𝛑𝒓 𝟐 37.53
STEEL 28 10402 𝛑𝒓 𝟐 57.73
Load(kgf) X-sectional
area
strength
BAMBOO 7 4479 𝛑𝒓 𝟐 24.86
BAMBOO 28 6890 𝛑𝒓 𝟐 38.24
Type of
reinforcement
Test daysType of
reinforcement
X-sectional
area

22. COMPARISION TABLE
Days Test type Bamboo Steel
7 Flexure 19.11 65.01
28 Flexure 29.4 100.01
7 Compression 24.86 37.53
28 Compression 38.24 57.73

23. CONCLUSION
Hence we can conclude that the strength of
steel is almost 3-4 times of the bamboo , but
bamboo can be used as a building material
because of following properties and reasons:-
 It is cost effective
 It is ecofriendly in nature.
 It is fast growing.
 It makes bond with concrete.

24. REFERENCES
 Department of Civil Engineering, Pontificia Universidade
Catolica, PUC-Rio, Rua Marques de Sa˜ o Vicente 225, 22453-
900 Rio de Janeiro, Brazil Received 26 September 2003; accepted
4June2004.
 Jambal N, Gambhir M.L , Tata McGraw–Hill Education(2011),
BuildingMaterials:Products,propertiesandSystems1stEdition.
 MechanicalPropertiesofBamboo.EvelinRottke.RWTHAachen
University. Faculty of Architecture. Aachen, North Rhine-
Westphalia, Germany. Section 3, page 11 and Section 4, page 11.
27October2002.Retrieved7December2013.

25. THANK
YOU…