While the extent of an item’s usefulness is limited to our imagination, the material’s properties and characteristics are equally important. Bamboo is a popular raw material that humans have put to various uses/applications for thousands of years. Below, we’ll explore some examples of the (almost) exhaustive list of what bamboo can be used for.
Bamboo is primarily used for timber, food, fibers, fabric, utensils, furniture, and as a living plant. Its popularity as a raw material dates back thousands of years, when communities close to forests sustained themselves and used bamboo in many traditions and religious practices.
Bamboo is celebrated as a wonder plant thanks to its growth characteristics and versatility in meeting the needs of many industries. The rest of the article examines how various industries use bamboo, what products are manufactured, and why it’s useful.
Exploring And Understanding Bamboo’s Uses
Bamboo refers to more than 1400 distant species of grass plants belonging to the subfamily Bambusoideae.
Although there is considerable diversity within the subfamily, most of these plants share several characteristics, which include:
- A hard, woody culm (stem) comprising nodes (solid) and internodes (hollow) in mature plants, while shoots are soft and supple.
- They grow from a rhizome (an underground stem that stores proteins, starch, and other nutrients for overwintering).
- They have incredible growth rates (some species grow up to 1 foot daily).
- Their primary form of propagating is vegetative (pushing out new plants from the same rhizome).
- Most species flower between 12 and 120 years.
- There are either runners or clumpers in their growth form.
- They grow between (roughly) 4” and 150’.
- They are naturally rot- and insect-resistant.
Thanks to bamboo’s widespread distribution, fast-growing nature, and strong but flexible properties, it’s a popular raw material, and its various parts are used in many industries.
The Uses Of Bamboo As Timber
These tall grass plants are highly prized in the construction industries, thanks to the dried culm’s properties.
Although not technically “timber,” bamboo wood comes from mature plants’ dried-out, hard stems (culms). They are used in a whole form or processed into planks and other building materials.
Culms are cut and processed into planks of various sizes. These planks are often joined with strong adhesives under immense pressure and heat.
Examples of bamboo timber in construction include:
- Scaffolding
- Flooring
- Walls and wall panels
- Bridges
- Roofing
- Water pipes (often for irrigation)
Other Products Made From The Timber
Thanks to its strength, flexibility, lightweight, and aesthetic appeal, the “wood” is frequently used in producing various other products (not associated with buildings or building materials).
Products made from bamboo include:
- Utensils (including chopsticks, spoons, cutting boards, and spatulas).
- Furniture (chairs, tables, cabinets, dressers, etc.).
- Fishing Rods
- Raft (boat) building
- Musical instruments (flutes, xylophones, organs, etc.).
Thanks to their inherent stability, durability, and resilience, products made from these grasses are in high demand.
Bamboo As A Food
Although not as well known in the West, communities living close to groves of these plants (particularly in Asia and the surrounding islands) use the various parts in traditional meals.
There are several parts used as food, including:
Shoots
One of the more frequently eaten plant parts is the new shoots of certain bamboo species (including Bambusa vulgaris and Phyllostachys edulis). The shoots are harvested when they are around 2 weeks old. Harvesting involves cutting the shoot off close to the ground or digging it up completely.
After cleaning, these shoots must be blanched (often in boiling water for 20 minutes) to remove all toxic compounds and bitter tastes and to make them digestible.
They are frequently added to Asian dishes like stir-fry and taste comparable to corn.
Seeds
While some species take up to 120 years to flower and seed, several types produce annually. The seeds are collected and eaten as grain (called bamboo rice).
Bamboo rice is comparable to brown rice, with increased calcium, copper, iron, zinc, and vitamins B2 and B5 levels but less phytic acid.
Crushed Culms (As Food Fortification Products)
After harvested shoots are cleaned and fragmented, they are boiled for roughly 20 minutes and soaked for 24 hours.
The fragments are pulverized and ground into powder, which passes through several sieves until it’s a fine consistency.
The resulting product (bamboo powder) is ideal for adding to baked goods as it is rich in amino acids, ash, carbohydrates, fat, protein, and starch.
Bamboo As Fiber
These grass plants are not only used in a whole or cut state, but the fibers are also extracted from the culm and used in various industries.
Thanks to their high cellulose, hemicelluloses, and lignin content, these fibers are incredibly strong, bond well to other compounds, and (depending on the processing) maintain some of the beneficial characteristics of living specimens.
Fibers In Biocomposites
Biocomposites are a fascinating application for these versatile plants. Don’t be put off by the funny name; all it means is a natural material is combined with a synthetic one, and the resulting product is a mixture.
These mixtures have incredible strength, durability, and resilience. The type of synthetic product mixed with the plant fibers and the fiber extraction process determines the end product’s quality and which characteristics remain from the living plant.
Strand-woven bamboo is a poignant example of the usefulness and strength of these mixtures. Culms are shredded into thin fibers and mixed with formaldehyde urea resin/adhesive (among others).
This mixture is subjected to intense heat and pressure, fusing the materials and creating a substance stronger than most hardwoods.
Another example of these mixtures is bamboo flour used in charcoal manufacturing, as part of welding rods, as a reducing agent in metallurgy, and many others.
Fibers In The Textile Industry
After building materials and food, these plants are commonly used as textiles.
The culm fibers are extracted through one of three methods, which are:
- Mechanical – This is the most labor-intensive method. Still, it is the most sustainable, produces fibers that retain many beneficial plant characteristics (resistance to mold, insects, etc.), and does not use harmful chemicals.
The fibers are extracted by “beating” the fragmented culms (or boiling them) and using specialized combs to pull the fibers free.
- Chemical – This method is commonly used in commercial operations as it is more efficient than beating plants. The culms are fragmented and placed in vats with caustic chemicals (like sodium hydroxide – often toxic to those working with them), dissolving the fibers into a pulp.
Once “pulped,” the fibers are rinsed and treated with other chemicals to produce filaments ( thin strands), which are spun into yarn.
- Combination – This method is a mixture of mechanical and chemical processes. It produces the best yield of fibers. Chemicals are often replaced with enzymes (natural microbes that loosen the fibers).
End products include:
- Clothing
- Linnen
- Wall hangings
- Towels
Fibers In Paper
Once the plant fibers are extracted, they are also used to produce paper. The stems are cut, soaked, pulped, cooked, and washed/re-soaked.
During this soaking, the fibers form a mat on the water’s surface, which is placed in a paper mold, pressed, and dried (usually bleached to improve the witness).
Bamboo As A Living Plant
Although many wonderful products are derived from these plants, they are also valuable as living specimens.
There are many uses for living bamboo plants, including:
- Decoration/Ornamental – they add an aesthetic appeal to landscapes/gardens, and many people keep them as pot plants.
- Privacy/Screening – These plants make excellent privacy screens thanks to their dense growth and perennial nature.
- Carbon sink – Due to their incredible growth rate, these tall grasses trap significant amounts of CO2 during photosynthesis, reducing localized air pollution and producing oxygen.
- Soil stabilizing – the rhizome and roots spread across the top 2 to 3’ of soil, holding it in place and preventing it from washing away during strong rains.
Other Uses Of Bamboo
There are many, many, many uses for bamboo plants and products, and the list could continue almost indefinitely.
However, some noteworthy mentions include:
As A Fuel
Humans have relied on these plants for thousands of years to meet many needs, including fuel for cooking and heating. Bamboo “wood” burns quickly and at a high temperature, which is beneficial when heating a room quickly but not for making lasting coals.
These plants are frequently used with other hardwoods, as they speed up the burning process (kindling).
Bamboo charcoal is a popular product, where the wood is “cooked” in an oven to produce longer-burning coals.
As Fodder
Several of these grass species are ideal for feeding livestock, and many communities rely on them.
As A Potential Source Of Green Energy
Thanks to bamboo’s superb growth rate, widespread distribution, and hardiness, these plants are becoming a better solution for green energy in the form of fuel and biogas.
Beema Bamboo is particularly good, producing roughly 40 tons per acre annually.
Bamboo plantations act as carbon sinks, helping to counteract the effects of climate change.
Conclusion
Bamboo is a raw material with tremendous versatility. It is highly prized in many industries, including construction, textile, food, and energy production. Living bamboo plants provide a plethora of benefits, which many of their products emulate. Most parts of the bamboo plant are used for various products.