Environmental Engineering , Building Construction

1. Green Building
Buddhabhushan G.
Rupawate
T.E Civil 6th sem (53)
D.N.P.C.O.E.Shahada

4. Definition:
Green building (also known as green
construction or sustainable building)
refers to both a structure and the
application of processes that
are environmentally responsible and
resource efficient throughout a building's
life-cycle: from planning to design,
construction, operation, maintenance,
renovation, and demolition.

5. Objectives of Green Building:
Minimize impact on natural environment.
Reduced Energy usage and Water usage.
Protect occupant health and increase
productivity.
Designed and constructed in a manner that
minimizes waste, pollution, and environmental
degradation

6. Materials Used for Green Building
• Deconstruction of existing home for reuse and
recycling, 90% recycled.
• Recycled 98% of construction waste.
•Replace conventional materials with
environmentally preferable alternatives.
• Balanced cut and fill. No import/export of dirt.
•Green concrete: Portland cement is responsible for
8% of the CO2 emissions of the world. Replace 50-
60% of Portland cement with slag/fly ash.

7. Hempcrete is a bio-
composite made of the inner
woody core of the hemp plant
mixed with a lime-based binder.
Eco friendly alternative to
concrete.
Ferrock is created from
waste steel dust and silica.
It is stronger than Concrete.
It absorbs CO2 as part of its
drying and hardening
process.

8. Bamboo as a building material has high
compressive strength, High tensile strength and low
weight has been one of the most used building
material as support for concrete, especially in those
locations where it is found in abundance. It is fastest
growing plant. It can be used as an alternative to
steel.

9. Energy Systems for Green Building
Main forms of renewable energy are:-
• Solar Energy
• Wind Energy
• Geothermal Energy
• Hydroelectric Energy

10. Passive Solar Design:
• Sunshine is used to Heat, Cool and Light
homes and other buildings.
• No need of Solar cells.
• It is part of the design of building itself.
Active Solar Design:
• Directly converts Solar Energy into other
useful forms of energy such as Electrical Energy.
• Solar cells are required.
• It needs some initial investment.

13. Advantages of Passive Solar:
• Low Energy Bills.
• One time Investment.
• Attractive Living Environment. Large windows and
well lit interior.
• No maintenance.
• Cooler in Summer and Warmer in Winter.
• Unwavering Comfort.
• Environment friendly.

14. Objectives of Efficient Energy:
• Energy Independence.
• Countering Rising energy demands.
• Reduce the usage of Non Renewable resources of
energy.
• Net zero energy.
•Net zero Carbon Emissions.

15. Water Management

17. Key Components of Water
Efficiency in green building
The three key components of water efficiency in green
buildings according to the USGBC (U.S. Green Building
Council) are:
• Reduce Indoor Potable Water Use.
• Reducing Water Consumption to Save Energy.
• Improve Environmental Well-Being.

18. Water Efficient Technologies
• Rainwater Harvesting.
• Greywater Recycling.
• Pressure Reduction.
• Cooling Towers.
• Low Flow Plumbing Fixtures.

20. Cooling Tower
Low Flow Toilet Fixture
Greywater Recycling

21. Green Building Rating System:
There are three primary Rating systems in India.
•GRIHA
•IGBC
•BEE
• LEED India

22. Benefits of Green Buildings
• Environmental
a) CO2 emissions are reduced by 84 Giga tons by 2050.
b) Limiting Global temperature rises to 2°C.
c) Green Building Certified by IGBC saves almost 40-50%
• Economic
a) € 280 - € 410 billion are saved on power generation.
• Social
a) Increase in brain function of workers.
b) Improved health of Employees.
c) Improvement in performance of workers.