This document discusses a study on producing light weight concrete using bamboo as a partial replacement for coarse aggregate. The study aims to examine the compressive and split tensile strengths of concrete with different percentages of bamboo aggregate replacement (0%, 5%, 10%, 15%, 20%, 25%). Materials used include cement, fine aggregate, coarse aggregate, water, and bamboo. M20 grade concrete mix ratios were used. Cubes and cylinders were cast to test compressive and split tensile strengths at 7 and 28 days. The expected outcomes are to determine the optimum bamboo percentage for maximum strength and study the effect on workability and density.

1. LIGHT WEIGHT CONCERTE USING BAMBOO AS
PARTIALLY REPLACEMENT FOR COARSE
AGGGREGATE
Nischith S R 4PM13CV035
Manjunath M C 4PM14CV025
Nikitha P N 4PM14CV033
Chethan D R 4PM15CV403
Under the guidance of
Dr. Gangadharappa B M
Professor
Department of Civil Engineering .
PESITM, Shivamogga
Project Associates
Department of CIVIL Engineering.
1

2. ROAD MAP
Introduction
Materials used
Methodology
Advantages
Expected outcome
Literature review
Reference
2

3. INTRODUCTION
Concrete is a composite material made from cement,
fine, coarse aggregate and water. Coarse aggregate is
more essential in concrete which is used a compaction
material in higher volume ratio.
The conventional concrete is having 70% of coarse
aggregate. In this project the concrete makes light in
weight.
The density of the normal concrete is 22-26 N/mm3.
This heavy self weight will make it to some extent an
uneconomical structures.
The light weight concrete density varies
from 3-18.5 N/mm2. 3

4. Light Weight Aggregate (L.W.A.) can be either
natural like diatomite, pumice, scoria, volcanic
cinders, etc., or manufactured like bloated clay,
sintered fly ash or foamed blast furnace slag.
All types of lightweight aggregate absorb water, the
amount of absorbed water varies from one lightweight
material to another, and depends on presoaking and
mixing time.
So that the alternate material is using for partial
replacement of coarse aggregate by bamboo aggregate.
In this study the partial replacement of coarse aggregate
by bamboo aggregate with different percentages are
studying are 0%, 5%, 10%, 15%, 20% and 25%.
The compressive strength and spilt tensile strength
is tested after 7 days and 28 days . 4

5. MATERIAL USED
Cement.
Fine aggregate.
Coarse aggregate.
Water.
Bamboo.
5

6. CEMENT
Cement is a binder, a substance used for
construction that sets, hardens and adhere to
other material.
For present experimental work using 43 grade
ordinary portland cement (opc) .
Fig 1.0
6

7. TESTING ON CEMENT
Specific Gravity.
Fineness of Cement.
Normal Consistency.
Initial Setting Time.
Final Setting Time.
Compressive strength of cement in
7 days and 28 days.
7

8. TESTING ON FINE AGGREGATE
Fine aggregate generally consist of natural sand or crushed
stone forms M. sand .
The fine aggregates used in the experiment of passing IS No.
4.75mm. The physical properties for fine aggregate have
been evaluate as per IS:383-1970.
Fig 1.1
8

9. TESTING OF FINE AGGREGATE
Sieve Analysis
Specific gravity test
Density
Water absorption
9

10. COARSE AGGREGATE
Coarse aggregate can be defined as inert granular materials
obtained after crushing a stone.
The coarse aggregate used is locally available jelly. Coarse
aggregates passing through 20 mm and retained on 12.5
mm sieve are used in the experiment.
The different physical properties are determined as per
IS:383-1970.
Fig 1.2
10

11. TESTING ON COARSE AGGREGATE
Specific Gravity
Sieve analysis
Density
Water absorption
11
WATER
The water is a potable and free from salt.

12. BAMBOO
Fig 1.3 Fig 1.4
12

13. Bamboo usually found in South Asia, East Asia,
and the South Pacific, to some extent in Central
and South America. In China and India.
Bamboo, as species of plant in the grass family
possessing good strength and flexibility and can
be used as building material .
Bamboo is one of the traditional construction
material which has been used even now in rural
area.
Bamboo can replaced wood and steel in many
application like roof covering, foot bridges
reinforcement, scaffolding and bamboo houses.
13

14. PROPERTIES OF BAMBOO
Sl. No. Parameter values
1 Specific gravity 0.575 to 0.655
2 Modulus of elasticity 61 to 160 N/mm2
3
Ultimate compressive
stress
79.4 to 86.4 N/mm2
4
Safe working stress in
compression
10.5 N/mm2
5
Safe working stress in
tension
16 to 35 N/mm2
14

15. SCOPE OF PRESENT INVESTIGATION
A considerable amount of research has now
been done on concrete but very little work
has been recorded on the using of bamboo
aggregate.
The present investigation is conducted to
study the following:
To examine the strength effect of replacing
coarse aggregate by bamboo aggregate .
To study the effect of workability of fresh
concrete by replacing bamboo aggregate.
15

16. METHODOLOGY
1. A mix proportion considered in this project is M20
. grade of
concrete.
2. The nominal mix or design mix is used in this project.
3. The concrete mix is used to replace coarse aggragate
partially by bamboo aggregate. Six percentages of
bamboo aggregate are examined, viz., 0%, 5%, 10%, 15%,
20% and 25%by weight.
4. The combinations of above parameters results in 6
different mixes.
5. The compressive strength of concrete is study by casting
the cubes of dimensions 150 x 150 x 150 mm. the total
number of cubes to be cast for 7days and 28 days strength
is 6 x 3 x 3 = 36 numbers.
6. Similarly for split tensile test also the same number (36) of
cylinders are required.
16

17. Cube Casting
Size of cube
150x150x150mm
Fig 1.5
Fig 1.6
17
Compressive Testing
Machine

18. SPLIT TENSILE TEST
Fig 1.7
18

19. ADVANTAGES
Fast growing natural element.
Low cost.
Easily available.
Easy and fast application.
Bamboo is extremely abundant.
Resistant to earthquakes.
Bamboo is renewable resource.
19

20. EXPECTED OUTCOME
1. The parameters considered in this project
are the different percentage replacement of
coarse aggregate in concrete by bamboo
aggregate. Viz. 0%, 5%, 10%, 15%, 20%,
and 25%
2. The optimum % of bamboo aggregate is
finding to achieve the maximum compressive
strength of concrete and split tensile
strength.
3. The effect of workability by replacing natural
coarse aggregate by bamboo aggregate.
4. The effect of density by replacing natural
coarse aggregate by bamboo aggregate.
20

21. LITERATURE REVIEW
Sl
No
Research Year Study about Result
1 Jigar K. et
al.
2013
Study on
Bamboo as
Reinforcement
in Cement
Concrete
Tension test
performed on
Bamboo strip
revealed
elastic
behavior
2
Avula
Ganesh
Reddy.
2015
Study on
Behavior of
Bamboo as
Reinforcement
with Coconut
Shell as
Aggregate
Ultimate load
carrying
capacity
decreased
stiffness of
the columns
also
decreased
21

22. SL
NO
RESEARCH YEAR STUDY ABOUT RESULT
3 Anurag
Nayak et al
2013
Bamboo
reinforcement
technique
It is absolutely
cheaper then steel
reinforcement
4 K Ghavami
et al.
2015 Behavior of
bamboo
Modulus of
elasticity of a
material is
increased
5 M Terai,
et al.
2011 Bamboo at
construction
Earthquake-
resistant
construction
and low cost
22

23. REFERENCES
1. Lakkad, S.C. and J.M. Patel. 1980. Mechanical properties of
bamboo, a natural composite. Fiber Sci.Technol. 14: 319-322.
2. Ghavami K., 2005, Bamboo as reinforcement in structural
concrete elements, Cement and composites, 27, pp 637-649.
3. Biswas. S and P.A. Xess, 2012. Erosion Wear Behavior of
Bamboo/ Glass Fiber Reinforced Epoxy Based Hybrid
Composites. International Journal of Mechanical and Industrial
Engineering, 1(4): 79-83.
4. Biswas, S and A. Satapathy, 2010. A comparative study on
erosion characteristics of red mud filled bamboo-epoxy and
glass-epoxy composites. Materials and Design, 31: 1752- 1767.
Chung, K.F and W.K. Yu, 2002. Mechanical properties of
structural bamboo for bamboo scaffoldings. Engineering
Structures, 24: 429-442. 23

24. 24

25. 25
THANK - YOU