This Presentation gives a brief overview and studies Bamboo as a construction material in the field of Architecture, It contains a Basic overview to Bamboo, It's prerequisite prepping of Bamboo before using it, Techniques of Construction and it's use in Architecture details. This was produced as an Assignment Submission for the Subject - Traditonal Method and Technologies for 3rd Semester Architecture

1. BAMBOO
TRADITIONAL MATERIALS AND TECHNIQUES
Tushar Das
200BARCH081

2. FACTS ABOUT BAMBOO
● It is estimated that there are 1200 species growing in
about 14.5 million hectares area.
● Bamboo is the world's fastest growing grass. It grows
approximately 7.5 to 40 cm a day.
● Bamboo also excels in biomass production, giving 40
tons or more per hectare annually.
● It has been used successfully to rehabilitate soil ravage
by brick making in India.

3. What is Bamboo?
Availability in India: 45% of world’s bamboo forests
Advantages
1. Light, strong and versatile
2. Environment friendly
3. Accessible to the poor
4. Self renewing resource
5. Fast growing
6. Highly productive
7. Earthquake resistance
Bamboo is actually a grass from the plant
family known as Poaceae and grows easily
and heartily in several varieties. It is
considered one of the fastest growing wood
plants
Disadvantages
1. They require preservation
2. Shrinks easily
3. Low Durability if not treated
properly
4. Structural reliability of
bamboo is questionable.
INTRODUCTION

4. STRUCTURAL & NON STRUCTURAL ELEMENTS

5. PHYSICAL PROPERTIES
Fire Rating: Ignition temperature of 265 degrees Celsius
Max & Min Length:
4 to 30m
Max & Min Diameter:
columns and roof members - 80 to 100mm
wall thickness - 10 to 12mm
Purlins - 25 to 35 mm

6. Modulus of Elasticity: The E-modulus for cellulose is 70,000 N/mm2 and of fibre is 35,000 N/mm2,
about 50% of the cross-section of cellulose is fibre.
Anisotropic Property: There are cellulose fibres in the longitudinal direction which makes bamboo
strong and stiff, and lignin in the transverse direction which makes it soft and brittle.
MECHANICAL PROPERTIES

7. Traditional Methods
Chemical Methods Chemical Preservatives
1. Copper Chrome
2. Acid Cupric
3. Copper Zinc
4. Coal Tar Creosote
TREATMENT & PRESERVATION
Internodal
Injection
Boucheire Method
Hot & Cold method
Smoke Curing Preservation by Flooding
the lnternodes
Air Drying
Curing with Boric Acid Borax
This salt, is used as an insecticide and
fungicide, and is also effective against
fungi and algae. It has an infinite shelf
life and is not affected by temperature.
Diluted with water, bamboo can be
impregnated, submerged or sprayed
with this chemical.

8. STORAGE & OTHER PRECAUTIONS
Lime Protection- A simple solution to protect the bamboo surface
against fungus, lichens and insects is to paint it with lime (Ca(OHh),
which due to its low pH level acts as fungicide and insecticide.
Surface Protection- To avoid deterioration of the exterior surface by
UV rays and rain, paints with a base of linseed oil and beeswax can be
used to close the open pores but they do block moisture transfer totally.
Storage- Bamboo is a hygroscopic and porous material. The shell can
swell and its mechanical properties will diminish if bamboo gets wet.
Therefore, it must be stored in a covered, dry and well-ventilated place.

9. STRUCTURE SYSTEM
Foundation, Typical Flooring,
Roof and Walls

10. Earthquake Resistant
1. High Residual Strength
2. Flexibility coupled with low mass
3. Lightweight
4. Can withstand earthquake measuring 7.8 on Richter scale
Limitations
1. Low structural efficiency
2. Not fire resistant and high cost of treatment
3. Lack of specifications and data relating to bamboo
Lifespan
Untreated Bamboo: 2-15 years
Treated Bamboo: 70-80 years
Precautions Pre-Construction & Post-Construction
● Felling during dry season (low sugar content)
● Felling mature bamboo
● Post harvesting transpiration
● Water soaking