Admin | May 04 2023
Fly
ash bricks are high-quality bricks used for the construction of brick masonry.
They are used as a replacement for normal clay bricks and have better
properties than clay bricks. Fly ash bricks are competitive in comparison to
conventional clay bricks and provide enormous indirect benefits. The
utilization of fly ash bricks results in the conservation of natural resources
as well as the protection of the environment.
72% of India's power plants are coal-based. These power stations generate about 40 million tons of fly ash annually. Fly ash generated from Thermal power plants and industries using coal as fuel emits unwanted ash and smoke. In all the power plants and industries, they separate the fly ash by using the cyclone converter. This fly ash is then used as a raw material for the manufacture of bricks.
Fly
ash causes severe pollution of air and water, and its disposal requires large
tracts of land. Well-planned programs for proper management of fly ash are
therefore being undertaken to enhance the use of fly ash in various
applications so that our already perilously imbalanced environment can be
protected
Leading
flyash brick producers in India use Columbia FlyAsh Brick Plant for the
production of flyash bricks of high strength and superior quality. Sand and
crusher dust are stored in bins and automatically weigh batched in a batching
plant. Cement and flyash are stored in silos and weighed and batched. Water is
also volumetrically batched. Batched ingredients are mixed in a pan or
planetary mixer and fed to the flyash brick plant. Columbia uses the technology
of vertical mould vibration, hydraulic and pneumatic compaction to produce
high-strength bricks (strength exceeding 15 N/mm2) with dimensional
accuracy.
The
increase in greenhouse gases, out of which CO2 is one of the major
constituents, increases global warming year after year, causing drought and
floods. The total CO2 Emissions globally account for 24,960 million tons at
1990 levels. The cement and building materials industry is one of the major
contributors.
The
CO2 emission is about ninety million tons out of cement and forty-nine million
tons out of clay bricks production in India. As per the ongoing practices in
India, each million clay bricks consume about 200 tons of coal (or any other
fuel with an equal quantity of thermal values) and emit around 270 tons of CO2.
Fly ash bricks production in an energy-free route saves the emissions totally,
befitting the project to qualify under Clean Development Mechanism (CDM), as
envisaged by the Kyoto Protocol towards the welfare of Mother Earth.
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