Lecture 8 - Bamboo As Construction Material PDF
Lecture 8 - Bamboo As Construction Material PDF
Lecture 8 - Bamboo As Construction Material PDF
Bamboo Construction
Company Name
INTRODUCTION :
Slide Master
• Bamboo has been in wide usage since
ancient times as a low-cost material
for houses, bridges etc.
temperature. 40
30
• Bamboo samples soaked in
20
hot neem seed oil at 60°C for
4 hours had better water 10
in oil at room temperature for Soaked bamboo samples at room temperature for 24 hours
Soaked bamboo samples at 60°C for 4 hours
24 hours.
PROTECTION OF BAMBOO IN CASe OF BAMBOO REINFORCED
STRUCTURES :
Slide Master
During the casting and curing of
concrete, reinforcing bamboo absorbs
water and expands
The swelling of bamboo pushes the
concrete away
Then at the end of the curing period, the
bamboo loses the moisture and shrinks
back almost to its original dimensions
leaving voids around itself
Bamboo Piles
FLOORING:
• Slide Master
The floors may be at ground level, and therefore
consists only of compacted earth, with or
without a covering of bamboo matting.
Bamboo Cane Floor Decking
• The various types used are:
• Split bamboo:
Culms are split along their length into strips,
several centimeters wide. Split Bamboo Floor Decking
• Flattened bamboo:
Formed by splitting green bamboo culms
removing the diaphragms, then rolling and flattening
them.
Flattened Bamboo Floor Decking
• Bamboo mats:
Slide Master
The slivers are woven into mats of
different sizes according to the available
hot-press plates and user’s demands.
In construction using
bamboo mats, phenolic resins are
employed.
• Bamboo plastic composites:
BAMBOO MAT
It is an innovative technology in which
bamboo fiber is the raw material and
compounded with plastic as the core
material of the flooring.
The ratio of plastic should be
over 30% for higher water resistance and
dimensional stability.
BAMBOO WALLS :
Slide Master
WOVEN VERTICAL
BAMBOO WALL HALVED CULMS BAJAREQUE
WHOLE BAMBOO
CULMS WATTLE
ROOFING :
• Slide Master
The roof offers protection against
extremes of weather including rain, sun
and wind, and to provide shelter, clear
and usable space beneath the canopy.
• The simplest form consists of a bamboo
purlin and beams, supported on Simplest Form
perimeter posts.
• Corrugated sheets made out of bamboo
are also used commonly as roof covering.
• A layer of bitumen is sandwiched
between two mats of bamboo forming a
semi rigid panel.
• Plastered bamboo: A cement plaster, with
or without the addition of organic fibres, Corrugated Sheets Bituminised Bamboo Mats
is traditionally applied to bamboo roofs,
SCAFFOLDING :
Slide Master
• Because of the favourable relationship between
load-bearing capacity and weight, bamboo can
be used for the construction of save
scaffoldings even for very tall buildings.
• The cane extension is carried out by lashing the
cane ends together with several ties.
• The vertical and horizontal canes used for
scaffolding are almost exclusively joined using
soft lashing.
• This technique has the great advantage that the
joints can be re-tensioned to the right degree
without difficulty and also quickly released
again.
BAMBOO REINFORCED CONCRETE :
Slide Master
COMPARISON OF BAMBOO AND STEEL
16000
14000
12000
Slide Master
10000
8000
6000
4000
2000
0
ULTIMATE ALLOWABLE ULTIMATE ALLOWABLE ALLOWABLE MODULUS OF
COMPRESSIVE COMPRESSIVE TENSILE TENSILE BOND STRESS ELASTICITY
STRENGTH STRENGTH STRENGTH STRESS
• It has been the backbone of much of the world’s rural life and
will remain so as the population increases.