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GREENTECH 2009A PAPER ON
GREEN BUILDING MATERIALSBY
NEERAJ RAJENDRA YEDEKAR(SE CIVIL)
VIKAS LAXMAN GINGINE(SE CIVIL)
KOLHAPUR INSTITUTE OF TECHNOLOGYs
COLLEGE OF ENGINEERING,
KOLHAPUR.
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Since the industrial revolution, theworld has witnessed incalculable
technological achievements & also
population growth and hence
corresponding increase in resources
use.
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SUSTAINABILITY'... meeting the needs of people today without
destroying the resources that will be needed ... bypersons in the future; based on long range
planning and the recognition of the finite nature
of natural resources...'
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GREEN ARCHITECTURE
Green Architecture is a term used to describe
economical, energy-saving, environmentally-
friendly, sustainable development.
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NEED FOR GREEN BUILDING !
Energy crisis
Resource depletion
Toxic wastes
Deforestation
Global warming
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GREEN BUILDING - ALL ABOUT Resource & energy efficient .
Efficient waste and water managementpractices.
Comfortable and hygienic indoor working
conditions. Efficient natural lighting & air-conditioning.
Wise use of construction materials.
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The Four-R's: Reduce
Recycle
Renewable
Rethinking
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GREEN MATERIALS
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SELECTION CRITERIA:
Resource Efficiency:
1. Recycled Content
2. Natural & renewable
3. Resource efficient manufacturing process
4. Salvaged, refurbished, or remanufactured
5. Reusable or recyclable
6. Durable
7. Locally available
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SELECTION CRITERIA:
Indoor Air Quality (IAQ):
1. Low or non-toxic
2. Minimal chemical emissions
3. Moisture resistant
4. Healthfully maintained5. Systems or equipment
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SELECTION CRITERIA:
Energy Efficiency
Water Conservation
Affordability
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SOME GREEN MATERIALS
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Fly ash based cement
Blend of portland cement and high quality fly
ash.
Corrosion resistant.
Impermeable.
Improved workability
High strength
Long life.
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Aerocon blocks:Made up of cement, fly ash, lime & water.
Light weight.
High thermal insulation.
Frost & water resistant.
Fire resistant.
Saves recurring costs of heating and cooling.
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Green Paints:
Low- or no-VOC (volatile organic compound)
paint .
They release no significant
pollutants.
No odour .
Improve overall indoor air
quality.
Generally cost the same as conventional paint .
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Glazing Glass:
Optimizes energy efficiency.
Enhance light penetration.
Good visual and aesthetic
effects.
Proper selection and placement can reduce the
cost of construction.
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Cork :
Harvested every 9 years from the same tree.
Elastic, anti-static, sound absorbing, insulating
and anti-allergenic.
Mainly used for
flooring.
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Bamboo:
When treated becomes extremely hard and
durable.
Light weight.
Substitute for steel
reinforcing rods.
Cheap and high availability.
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Benefits of Green Materials:
EnvironmentalBenefits
Enhance and protectecosystems and
biodiversity. Improve air andwater quality.
Reduce solid waste.
Conserve naturalresources.
Economic Benefits
Reduce operatingcosts.
Enhance asset value& profits.
Improve employeeproductivity andsatisfaction
Optimize life-cycleeconomicperformance.
Reduces futureliability.
Increase retail sales.
OccupationalBenefits
Improve air, thermal& acoustic
environments. Enhance occupant
comfort and health.
Reduce healthcarecosts.
Improve employeesatisfaction andmorale
Less absenteeismand turnover.
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Green techniques:
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Natural Air Conditioning:
Maximize natural heating and cooling,
reducing the need for air conditioning to the
summer's hottest months.
Right-sized overhangs placed above south-
facing windows can help minimize heat gain
during the summer.
Maximize use of operable windows.
Incorporate whole-house / attic fans.
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Lighting:
Study the sun diagram and place the windows
properly.
Make use of CFLs and LED bulbs for lighting
purpose.
Make majority use of natural light.
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Water Management
Design for dual plumbing
Rain water harvesting.
Use a water budget approach. Use of sprinklers and Drip
Irrigation.
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Energy Generation:
Installation of photovoltaic cell.
Solar water heaters.
Biogas plant. Small wind mills.
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Use of Light Transmitting
Concrete: It is a mixture of thousands of small size
optical glass fibers and fine concrete .
It can be used for both interior as well asexterior walls. (Litracon)
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Use of Light Weight Steel:
It is a 1-2 mm stainless steel hollow micro
sandwiched filled with air as well as millions of
microscopic steel fibers.
Its weight is about half of the conventional
steel.
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CASE STUDY
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Residence of Dr. Niranjan Shah .
By
Neeraj Rajendra Yedekar(SE civil)
Vikas Laxman Gingine(SE civil)
Kolhapur Institute of Technologys College of Engineering, Kolhapur.
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Located in Takala area , Kolhapur.
Type of building : Bunglow.
Residential building.
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Materials
Red laterite stone for exterior walls.
Jaisalmaier tiles for flooring.
Recycled wood used forcupbords,almariahs & doors.
Use of Green paints.
Fly ash based aerocon blocks used forcompound walls.
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Natural Lighting
Glass Panels on the roof
allow the natural sunlight
into the house.
No need of artificial
lighting during day time.
90% of the building is daylit.
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Energy Generation
20% of the buildings
energy requirement
is catered to by solarphoto voltaic cells.
Solar water heater
systems are installed
on top of the house.
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Water Efficiency
Rain Water
Harvesting
Drip irrigation usedin gardens.
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Garden
The house is surrounded by many trees such aspalm, mango, coconut, papaya, chiku, etc.
Also there are many flowering plants such asrose, chapha, gladiolas, jaswandi, orchids, jasmin,etc.
Hence the house gets a fresh look and the
people staying in the house feel pleasant.
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Conclusion
Vast Applications.
Dominant in developed countries.
Role of government & civil engineers.
Even if some materials or practices are costlier, itis the price to pay for safety !!!
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References:
NABH Guidelines TERI Magazines
CW Magazines
Tree hugger consultancy booklet.
USGBC .org Wikipedia.com
Greenbuildingdesign.org
Sustainablebuildingcentre.com
ciwmb.ca.gov
igreenbuild.com
THANK YOU..