BIOCHAR BRICKS FOR CONSTRUCTIO:
Above normal bricks, below biochar bricks
Biochar / Charcoal in the earth wall remaining since more than hundred years.
There
are many advantages of using the Biochar as a component in Green
Buildings for clean indoor air. Biochar can remain for up to 1000 years
and more in the soils. Biochar found in earth walls of over 100 years
old, is still intact. Biochar can be mixed in different proportions with
sand / cement / earth / other suitable material to produce bricks /
panels / blocks. The percentage Biochar in different products can be
decided based on the purpose and product properties. Biochar use makes
the building walls light and insulate. The Biochar produced from
different biomasses, temperatures and processes have different
properties. Some types of Biochar properties are Coconut shell Biochar
appears crystalline, Bamboo Biochar having traditional values, rice-husk
Biochar having high silica, etc. The highly porous surfaces of biochars
have been shown to adsorb N2O, CO2 and CH4 (Lukas Van Zwieten et al).
The Biochar when used in green buildings absorb some of these green
house gasses. The Biochar in the debris when used in green buildings,
after reaching landfill sites reduce the GHGs emissions from landfill
sites and prevent leachets. Biochar can be used as screen for
purification of air entering into buildings. Biochar regulates humidity
indoors, the emissions from indoor toilets are absorbed. The Biochar
urinals reduce NOx emissions as well tap urea from urine for later use
as soil amendment. It can be applied to the soil for indoor plants /
gardens, as air purifier in refrigerator, for water filtration in
aquariums, etc., for reducing emissions from various sources.
Considering the life, source and property of Biochar, it is a means for
carbon sequestration. It also brings other benefits; temperature is
regulated through insulation, as a light weight material suitable for
high raise buildings and reduces cost of construction. Biochar is
resistant and repels termites and ants. Biochar is the source of
negative ions, prevents oxidization, emit far infrared radiation, and
dissipate electromagnetic fields from many electronic and electrical
devices in a house, these characteristics improve the living conditions
in a house. Considering the properties of Biochar for improving the
indoor air quality and benefits to the user and environment, can be used
in all the green buildings as per the need.
Biochar
/ charcoal has many good properties. Bricks are made using, rice husk
biochar (a byproduct from rice mills), cement and sand. With different
proportions the bricks are made.
Uses
- Around plants and path ways
- In construction of buildings, especially inside walls and higher walls
- Ideal for bed rooms to remove obnoxious smell
- Even when the building is demolished, the biochar would benefit the soil.
Insulation - cool in summers and warm in winter
Light weight, good for high story buildings for creating inside walls
Termites resistant
Can be sculpted into shapes
Carbon sequestration
Three types of bricks
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Rice husk biochar : 6 kgs
Cement : 3 kgs
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Sand: 14 kgs
Rice husk biochar: 2.5 kgs
Cement : 2 kgs
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Sand : 14 kgs
Rice husk biochar: 1 kg
Cement: 1 kg
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Dimensions of each brick
11.5 x 7.5 x 6 inches
Note: The rice husk biochar is saturated with water.
watch in
preparation process:
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