Call Now ≽ 9953056974 ≼🔝 Call Girls In New Ashok Nagar ≼🔝 Delhi door step de...
Green concrete power point presentation
1. PRESENTED BY : PRESENTED TO :
MADUPALLI.AKHIL DEPARTMENT OF
U14CE096 CIVIL ENGINEERING
DEPARTMENT OF
CIVIL ENGINEERING
2. CONTENTS
What is Concrete ?
Types of Concrete?
What is Green Concrete ?
Technique followed by Green Concrete
Materials for Green Concrete
Cementitious Materials-Fly Ash
Suitability Of Green Concrete In Structures
Advantages
Applications of Green Concrete
Scope in INDIA
Conclusion
References
3. CONCRETE :
Concrete is a mixture of coarse aggregate,
Cement , water and fine aggregate with mixed
Proportions which can be poured in to
formwork
And form a hard structure like a stone .
6. INTRODUCTION
Green concrete is an revolutionary topic in
the history of concrete industry, this was first
invented in Denmark in year 1998.
Green concrete is the type of concrete which
like the conventional concrete but a
production of such concrete requires
minimum amount of energy and causes less
harmful to environment
Green concrete has nothing to do with colour
7. GREEN CONCRETE?
Green concrete is an environmentally
friendly concrete
Concrete that made with concrete waste and
uses less in energy in its production and
produced less carbon dioxide than normal
concrete is green concrete
8. The main ingredient in concrete is cement and it
consists of lime stone
During manufacturing of cement its ingredients
are heated to about 800c-10000c
During this process carbon dioxide is released
Approximately 1kg of concrete releases about
900gms of carbon dioxide into the atmosphere
Therefore green concrete came in to existence
to reduce the emission of carbon dioxide
9. WHERE DOES THE CARBON DIOXIDE COME
FROM IN CONCRETE?
Cement :
Most of CO2 in concrete is from the cement
manufacturing process a typical cubic meter
of concrete contains about 10% cement by
weight .The reaction in this process of
cement
manufacture is:
CaCO3 = CaO+CO2
10. TECHNIQUE
It should follow 3R‘s Technique
Reduce
Reuse
Recycle
Reduce the green house gas emission
Reduce the use of natural resources such as
lime stone, shale, clay and natural river sand
Use of waste materials
objective:
The main objective is sustainable development
with out destruction of natural resources.
11. FEATURES OF GREEN CONCRETE
The concrete which fall in the category of green
Must have the following characteristics
Optimizes use of available materials
Better performance
Enhanced cohesion workability / consistency
Reduce shrinkage /creep
Durability-better service life of concrete
Reduce carbon footprint
No increase in cost
LEED India Certification
12. Green concrete mix is designed with the
principle of “particle-packing optimization” to
meet requirements of plastic and hardened
properties
Recycled Demolition Waste Aggregate
Recycled Concrete Aggregate
Blast furnace Slag (BFS)
Manufactured Sand
Glass Aggregate
Fly ash
13.
14.
15. CEMENTITIOUS MATERIALS
FLY ASH
Fly ash is a by product during the operation of
coal fired plants. The finely divided particles from the
exhaust gases are collected in the electro static
precipitators. These particles are called Fly Ash.
Utilization of Fly Ash as a part
replacement of cement or
mineral admixture in concrete
saves on cement and hence the
emission of Carbon dioxide.
16. ADVANTAGES OF FLYASH
Use of good quality fly ash in concrete has
shown remarkable improvement in durability
of concrete, especially in aggressive
environment.
Higher Ultimate Strength
Increased durability
Improved Workability
Reduced bleeding
Reduced shrinkage
Increased resistance to alkali-silica reactivity
17. SUITABILITY OF GREEN CONCRETE IN
STRUCTURES
Several factors which enhances the suitability of
Green Concrete in structures include:
1. Reduce the dead weight of a structure
2. Good thermal and fire resistance sound insulation
than the traditional granite rock
3. Reduce of concrete industry's carbon dioxide
emission by 30%
4. Increased concrete industry’s use of waste
products by 20%
5. Green Concrete requires less maintenance and
repairs
18. ADVANTAGE‘S
Reduction in creep and shrinkage
It uses the local and recycled materials in
concrete
The heat of hydration of green concrete is
significantly lower than the traditional
concrete
Compressive strength and flexural behavior
is fairly equal to that of conventional concrete
Since these are optimized mix designs it is
easier to handling
19. ADVANTAGE‘S
Concrete gives good strength to the
structure
It is good fire resistant
It helps in reducing the consumption of
cement overall
Use of fly ash the concrete also increase its
workability and durability
Optimized mix design ,easier handling ,better
consistency and easier finishing
21. SCOPE IN INDIA
Green concrete is a revolutionary topic in the
History of concrete industry.
As Green Concrete is made with concrete
waste it
does take more time to come in India because
of
Industries having problem to dispose wastes
and
It also reduces environmental impact with
reduction in co2 emission .
Use of Green Concrete can help us reduce
23. CONCLUSION
• Although there are some defects of green
technology, everything done should have
both positive and negative impacts.
• Global warming and energy crisis cannot be
solved with one or two years
• It really requires our determination and
continue effort in improving the situation
• Green technology will definitely be the
solution that gets the potential in helping us
to solve those problems and improve our
environment.
24. REFERENCES
Indian concrete journal volume 77-january-
2003-no-1 green concrete technology by
R.M.SWAMY on page -878
Websites:-
http://www.greenconcrete.dk/
http://www.diamondbidewarehouse.com/gree
n concrete.html