what is bamboo? properties of - green products, green ...€¦ · south asia, southeast asia and...
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Fused Bamboo® for ExteriorUse
About
Bamboo
Bamboos are ofnotable economic andcultural significance inSouth Asia, SoutheastAsia and East Asia,being used forbuilding materials, asa food source, and asa versatile rawproduct!
Bamboo is one of thefastest-growing plants onEarth, with reportedgrowth rates of 100 cm(39 in) in 24 hours.However, the growth rateis dependent on local soiland climatic conditions,as well as species, and amore typical growth ratefor many commonlycultivated bamboos intemperate climates is inthe range of 3–10centimeters (1.2–3.9 in)per day during thegrowing period. Primarilygrowing in regions ofwarmer climates, vast
What is Bamboo?
Chemical composition:
Bamboo is a tribe of flowering perennialevergreen plants in the grass family. Giantbamboos are the largest members of the grassfamily. It is mainly composed of cellulose andlignin, about 70% and 20% respectively.
Anatomical Structures:
The structure of abamboo culmtransverse sectionis characterizedby numerousvascular bundles. The size of the vascularbundle is large in the inner and middle layerbut smaller and denser in the outer layer.
Fiber structure
The fiber lengthwas mainlybetween 1.6-3.1mm. Olderbamboo has moreshort fiber. So does outer layer compared tothe middle and inner layer.
Physical and Mechanical Properties:In bamboo, there are no rays or knots, whichgive bamboo a far more evenly distributedstresses throughout its length.
Specific gravity (SG) is a measure of the density
Properties ofBamboo
Bamboo mostdistinguished and usefulproperties can be resumedas:
Renewability- Bamboo
is not a wood, it is a
grass. Stems are ready
for harvest within 5
years.
Sustainability- After
harvesting the mother
plant, new shoots
continue to develop
from the root system
Evenly distributed
stresses-In bamboo,
there are no rays or
knots, which give
bamboo a far more
evenly distributed
stresses throughout its
length.
Coherent appearance-
Without rays or knots,
its natural appearance is
smooth and coherent.
Low density-Specific
gravity (SG) is a measure
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fields existed in Asia.Some of the largesttimber bamboo can growover 30 m (98 ft) tall, andbe as large as 15–20 cm(5.9–7.9 in) in diameter.
Unlike trees, individualbamboo stems, or culms,emerge from the groundat their full diameter andgrow to their full heightin a single growingseason of three to fourmonths. During theseseveral months, eachnew shoot growsvertically into a culm withno branching out untilthe majority of themature height isreached. Then, thebranches extend fromthe nodes and leafingout occurs. In the nextyear, the pulpy wall ofeach culm slowlyhardens. During the thirdyear, the culm hardensfurther. The shoot is nowconsidered a fully matureculm. Around 5–8 yearslater, culm will collapseand decay. This brief lifemeans culms are readyfor harvest and suitablefor use in constructionwithin about three toseven years. Individualbamboo culms do notget any taller or larger indiameter in subsequentyears than they do intheir first year, and theydo not replace anygrowth lost from pruningor natural breakage.Bamboos have a widerange of hardinessdepending on speciesand locale.
Bamboo used forconstruction purposesmust be harvested whenthe culms reach their
General Applications
Culinary
The shoots (new culms that come out of theground) of bamboo are edible. They are usedin numerous Asian dishes and broths, and areavailable in supermarkets in various slicedforms, in both fresh and canned versions.Bamboo is frequently used for cooking utensilswithin many cultures, and is used in themanufacture of kitchenware, such aschopsticks, cutting board etc. In modern times,some see bamboo tools as an ecofriendlyalternative to other manufactured utensils.
Medicine
Bamboo is used in Chinese medicine fortreating infections and healing. In the Indian
of a substance. The specific gravity of asubstance is a comparison of its density to thatof water. The specific gravity of bamboo variesbetween 0.4 and 0.8.Bamboo possesses high moisture content. Green bamboo may have 100% percentmoisture (oven-dry weight basis) and can be ashigh as 155 percent for the innermost layers to70 percent for the peripheral layers. Thevertical variation from the top (82%) to thebottom (110%) is comparatively less.
Wettability, usually evaluated by contact anglemeasurement, has positively related toadhesion. The contact angle of outer surfaceof bamboo had the highest contact angle. Themiddle layer had the lowest contact angle.
Specific gravity and bending properties ofbamboo all increase from one year old to fiveyear old culms, from inner layer to outer layer,and from bottom portion to top portion. Theouter layer has a more decisive role insupporting bamboo than the inner layer. Bending strength had a strong positivecorrelation with SG. Compression propertiesparallel to the longitudinal direction aresignificantly higher than perpendicular to thelongitudinal direction.
of the density of a
substance. The specific
gravity of a substance is
a comparison of its
density to that of water.
The specific gravity of
bamboo varies between
0.4 and 0.8. It is very
light.
High Wettability-
positively related to
adhesion. It has high
wettability so that
bamboo strips can be
glued firmly.
Resiliency - Bamboo is
elastic and very
resistant.
High wear resistance –
it has high wear
resistance.
Edibility- Younger
bamboo shoots have
been food supply for a
long time. There is no
need to worry about the
material safety when
used as kitchenware.
What is BambooUsed For?
Bamboo properties make itan all-purpose problemsolver and suitable for awide range of applications:
Use of bamboo asplant-ornamentalhorticulture
Ecology
Stabilize of the Soil
Uses of Marginal
Land
Hedges and Screens
Minimal Land Use
Agro-forestry
Natural Stands
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greatest strength andwhen sugar levels in thesap are at their lowest.Harvesting is best at theend of the dry season, afew months prior to thestart of the wet.
In Asian culture,Bamboo's long life makesit a Chinese symbol oflongevity, while in India itis a symbol of friendship.Bamboo, one of the “fourgentlemen” (bamboo,orchid, plum blossomand chrysanthemum),plays such an importantrole in traditionalChinese culture that it iseven regarded as abehavior model of thegentleman. As bamboohas some features suchas uprightness, tenacityand hollow heart, peopleendow bamboo withintegrity, elegance andplainness.
Types of Bamboo
Bamboo Flooring
Bamboo Decking
Bamboo Countertop
Bamboo Panel and
Veneer
Bamboo Cutting
Board
Bamboo Kitchenware
system of traditional medicine, the siliciousconcretion found in the culms of the bamboostem is said to be a tonic for the respiratorydiseases.
Construction
Bamboo can be used for construction as it is orcut and laminated into sheets and planks.Bamboo has also long been used asscaffolding. Various structural shapes may bemade by training the bamboo to assume themas it grows. Bamboo has been used asreinforcement for concrete. Several institutes,businesses, and universities are working onthe bamboo as an ecological constructionmaterial. In the United States and France, it ispossible to get houses made entirely ofbamboo, which are earthquake and cyclone-resistant and internationally certified.
Textiles
Because the fibers of bamboo are very short(less than 3 mm), they are impossible totransform into yarn in a natural process.
Paper
Bamboo fiber has been used to make paper inChina since early times. A high-quality,handmade paper is still produced in smallquantities. Coarse bamboo paper is still usedto make spirit money in many Chinesecommunities.
Musical instruments
Bamboo's natural hollow form makes it anobvious choice for many musical instruments,most commonly flutes.
Bamboo display and Furniture
Plantations
Mixed Agro-Forestry
Systems
Use of bamboo asmaterial
Local Industries
Artisanat
Furniture
A variety of utensils
Houses
Wood and paper
industries
Strand boards
Medium density
fiberboard
Laminated lumber
Paper and rayon
Parquet
Nutritional industries
Young shoots for
human
consumption
Fodder
Chemical industries
Biochemical products
Pharmaceutical
industry
Energy
Charcoal
Pyrolysis
Gasification
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A bamboo display is a display with a supportstructure made out of bamboo. Bamboo has along history of use in Asian furniture. Chinesebamboo furniture is a distinct style based on amillennia-long tradition.
Other uses
Several manufacturers offer bamboo bicyclesand skateboards. Due to its flexibility, bamboois also used to make fishing rods. Bamboo canbe used in water desalination. A bamboo filteris used to remove the salt from seawater
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