This document discusses green concrete as a way to reduce CO2 emissions from concrete production. It explains that green concrete uses industrial byproducts like fly ash and microsilica to replace some of the cement. This can reduce related CO2 emissions by 15-40% while maintaining or improving the strength and durability of the concrete. The document also outlines some of the materials used in green concrete production and their environmental benefits.
Eco-Concrete : Opportunities and ChallengesAbhishek Suman
ECO- concrete is a revolutionary topic in the history of concrete industry. This was first invented in Denmark in the year 1998. ECO- concrete has nothing to do with color. It is a concept of thinking environment into concrete considering every aspect from raw materials manufacture over mixture design to structural design, construction, and service life
green concrete preparation and techniques used in manufacturing of green concrete and uses and applications and proportions ratios as explained briefly to the civil engineering field
Eco-Concrete : Opportunities and ChallengesAbhishek Suman
ECO- concrete is a revolutionary topic in the history of concrete industry. This was first invented in Denmark in the year 1998. ECO- concrete has nothing to do with color. It is a concept of thinking environment into concrete considering every aspect from raw materials manufacture over mixture design to structural design, construction, and service life
green concrete preparation and techniques used in manufacturing of green concrete and uses and applications and proportions ratios as explained briefly to the civil engineering field
This presentation is about Eco-friendly concrete also known as Green Concrete. It covers the need, material used for the manufacturing of Green Concrete and the advantages & limitations of Green concrete.
Best Regards:
Engr. Muhammad Ali Rehman
Green concrete is environmental friendly concrete
Concrete that uses less energy in its production and produces less carbon dioxide than normal concrete is green concrete
Team Work of Mr Haider Ali Jafferi and M.Ali Rehman Siddiqui. Both are close friends and Both are Civil Engineer.. Hope this presentation will be Fruitful for you.. Remember us in your prayers.
Hii sir good morning to all
this Ppt is prepared for to protect the environment from co2 gasses could you please read it understand
i hope we are all use the green concrete ....
thank you friends
have a nice day
The concrete which is made from the industrial wastes and eco-friendly is the green concrete.Green will reduce 10% of CO2 emission which will reduce the global warming, which is one of the reason for world's destruction.Since it is made from the industrial wastes it is very cheap and durable.
These papers explain in some detail what is green concrete
Presented by my dear wife in her graduate studies I loved to share with you to benefit everyone
Thanks to my wife(Ashwaq Mahmoud) for this effort
To demonstrate how admixture technology can improve the quality of placed concrete and reduce the life-cycle cost of buildings to construct more sustainable structures
This presentation mostly consist of basics of green concrete with its limitation and its applications.This presentation consist of 8 slides starting with concrete and ending with its application.
This presentation is about Eco-friendly concrete also known as Green Concrete. It covers the need, material used for the manufacturing of Green Concrete and the advantages & limitations of Green concrete.
Best Regards:
Engr. Muhammad Ali Rehman
Green concrete is environmental friendly concrete
Concrete that uses less energy in its production and produces less carbon dioxide than normal concrete is green concrete
Team Work of Mr Haider Ali Jafferi and M.Ali Rehman Siddiqui. Both are close friends and Both are Civil Engineer.. Hope this presentation will be Fruitful for you.. Remember us in your prayers.
Hii sir good morning to all
this Ppt is prepared for to protect the environment from co2 gasses could you please read it understand
i hope we are all use the green concrete ....
thank you friends
have a nice day
The concrete which is made from the industrial wastes and eco-friendly is the green concrete.Green will reduce 10% of CO2 emission which will reduce the global warming, which is one of the reason for world's destruction.Since it is made from the industrial wastes it is very cheap and durable.
These papers explain in some detail what is green concrete
Presented by my dear wife in her graduate studies I loved to share with you to benefit everyone
Thanks to my wife(Ashwaq Mahmoud) for this effort
To demonstrate how admixture technology can improve the quality of placed concrete and reduce the life-cycle cost of buildings to construct more sustainable structures
This presentation mostly consist of basics of green concrete with its limitation and its applications.This presentation consist of 8 slides starting with concrete and ending with its application.
International Journal of Engineering and Science Invention (IJESI)inventionjournals
International Journal of Engineering and Science Invention (IJESI) is an international journal intended for professionals and researchers in all fields of computer science and electronics. IJESI publishes research articles and reviews within the whole field Engineering Science and Technology, new teaching methods, assessment, validation and the impact of new technologies and it will continue to provide information on the latest trends and developments in this ever-expanding subject. The publications of papers are selected through double peer reviewed to ensure originality, relevance, and readability. The articles published in our journal can be accessed online.
IOSR Journal of Mechanical and Civil Engineering (IOSR-JMCE) is an open access international journal that provides rapid publication (within a month) of articles in all areas of mechanical and civil engineering and its applications. The journal welcomes publications of high quality papers on theoretical developments and practical applications in mechanical and civil engineering. Original research papers, state-of-the-art reviews, and high quality technical notes are invited for publications.
A Theoretical Study on Green Concrete Constructionijtsrd
Concrete which are taken from the demolished structures or from concrete waste which are considered to be eco friendly and using it for the purpose of another building construction is called as green concrete construction. This helps to make the future construction eco friendly and also reduce the emission of CO2. Now a days global warming is the major drawback of whole world which is directly or indirectly caused by the civil engineering field. The world consumes concrete more next to water. So it is the duty of every civil engineer to go along the disadvantages of green house gas emission and to reduce their effects in environment. This can be sought by using the eco friendly materials and also the eco friendly waste concrete available in earth. This journal paper would provide the ideas of green construction and also helps to induce the engineers choice of construction. P K Ponsangari "A Theoretical Study on Green Concrete Construction" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-3 | Issue-6 , October 2019, URL: https://www.ijtsrd.com/papers/ijtsrd29376.pdf Paper URL: https://www.ijtsrd.com/engineering/civil-engineering/29376/a-theoretical-study-on-green-concrete-construction/p-k-ponsangari
Green concrete” refers to concrete produced by recycling concrete debris in an environmentally responsible manner. Green concrete is defined as concrete that, throughout the manufacturing process, consumes less energy and generates a lower amount of carbon dioxide than conventional concrete.
Welcome to WIPAC Monthly the magazine brought to you by the LinkedIn Group Water Industry Process Automation & Control.
In this month's edition, along with this month's industry news to celebrate the 13 years since the group was created we have articles including
A case study of the used of Advanced Process Control at the Wastewater Treatment works at Lleida in Spain
A look back on an article on smart wastewater networks in order to see how the industry has measured up in the interim around the adoption of Digital Transformation in the Water Industry.
Cosmetic shop management system project report.pdfKamal Acharya
Buying new cosmetic products is difficult. It can even be scary for those who have sensitive skin and are prone to skin trouble. The information needed to alleviate this problem is on the back of each product, but it's thought to interpret those ingredient lists unless you have a background in chemistry.
Instead of buying and hoping for the best, we can use data science to help us predict which products may be good fits for us. It includes various function programs to do the above mentioned tasks.
Data file handling has been effectively used in the program.
The automated cosmetic shop management system should deal with the automation of general workflow and administration process of the shop. The main processes of the system focus on customer's request where the system is able to search the most appropriate products and deliver it to the customers. It should help the employees to quickly identify the list of cosmetic product that have reached the minimum quantity and also keep a track of expired date for each cosmetic product. It should help the employees to find the rack number in which the product is placed.It is also Faster and more efficient way.
Water scarcity is the lack of fresh water resources to meet the standard water demand. There are two type of water scarcity. One is physical. The other is economic water scarcity.
Sachpazis:Terzaghi Bearing Capacity Estimation in simple terms with Calculati...Dr.Costas Sachpazis
Terzaghi's soil bearing capacity theory, developed by Karl Terzaghi, is a fundamental principle in geotechnical engineering used to determine the bearing capacity of shallow foundations. This theory provides a method to calculate the ultimate bearing capacity of soil, which is the maximum load per unit area that the soil can support without undergoing shear failure. The Calculation HTML Code included.
Student information management system project report ii.pdfKamal Acharya
Our project explains about the student management. This project mainly explains the various actions related to student details. This project shows some ease in adding, editing and deleting the student details. It also provides a less time consuming process for viewing, adding, editing and deleting the marks of the students.
Industrial Training at Shahjalal Fertilizer Company Limited (SFCL)MdTanvirMahtab2
This presentation is about the working procedure of Shahjalal Fertilizer Company Limited (SFCL). A Govt. owned Company of Bangladesh Chemical Industries Corporation under Ministry of Industries.
Explore the innovative world of trenchless pipe repair with our comprehensive guide, "The Benefits and Techniques of Trenchless Pipe Repair." This document delves into the modern methods of repairing underground pipes without the need for extensive excavation, highlighting the numerous advantages and the latest techniques used in the industry.
Learn about the cost savings, reduced environmental impact, and minimal disruption associated with trenchless technology. Discover detailed explanations of popular techniques such as pipe bursting, cured-in-place pipe (CIPP) lining, and directional drilling. Understand how these methods can be applied to various types of infrastructure, from residential plumbing to large-scale municipal systems.
Ideal for homeowners, contractors, engineers, and anyone interested in modern plumbing solutions, this guide provides valuable insights into why trenchless pipe repair is becoming the preferred choice for pipe rehabilitation. Stay informed about the latest advancements and best practices in the field.
1. Green concrete
Eco-friendly construction
M.SASIDHAR
Dept. of Civil Enginering
SMVEC
Puducherry, India
sasidharm007@gmail.com
V.SUNDARKISHNAN
Dept. of Civil Engineering
SMVEC
Puducherry, India
sundarakishnan14@gmail.com
Abstract— This paper explains about CO2 emissions in
concrete and it’s remedy as green concrete and the materials
used for manufacturing green concrete.
Index Terms— CO2 emission , fly ash , microsilica
I. INTRODUCTION:
Green concrete is a revolutionary topic in the history
of concrete industry. This was first invented in Denmark
in the year 1998. Green concrete has nothing to do with
colour. It is a concept of thinking environment into
concrete considering every aspect from raw materials
manufacture over mixture design to structural design,
construction, and service life. Green concrete is very
often also cheap to produce, because, for example, waste
products are used as a partial substitute for cement,
charges for the disposal of waste are avoided, energy
consumption in production is lower, and durability is
greater. Green concrete is a type of concrete which
resembles the conventional concrete but the production
or usage of such concrete requires minimum amount of
energy and causes least harm to the environment. The
CO2 emission related to concrete production, inclusive of
cement production, is between 0.1 and 0.2 t per tonne of
produced concrete.
I. PROBLEMS IN CONVENTIONAL CONCRETE
Since the total amount of concrete produced is so vast
the absolute figures for the environmental impact are
quite significant, due to the large amounts of cement and
concrete produced. Since concrete is the second most
consumed entity after water it accounts for around 5% of
the world‘s total CO2 emission (Ernst Worrell, 2001).
The solution to this environmental problem is not to
substitute concrete for other materials but to reduce the
environmental impact of concrete and cement. Pravin
Kumar et al, 2003, used quarry rock dust along with fly
ash and micro silica and reported satisfactory
properties.all fonts, in particular symbol fonts, as well,
for math, etc.
II. REDUCTION OF CO2 EMISSION
The potential environmental benefit to society of
being able to build with green concrete is huge. It is
realistic to assume that technology can be developed,
which can halve the CO2 emission related to concrete
production. With the large consumption of concrete this
will potentially reduce the world‘s total CO2 emission by
1.5-2%. Concrete can also be the solution to
environmental problems other than those related to CO2
emission. It may be possible to use residual products
from other industries in the concrete production while
still maintaining a high concrete quality. During the last
few decades society has become aware of the deposit
problems connected with residual products, and
demands, restrictions and taxes have been imposed.
III. RAW MATERIALS FOR GREEN CONCRETE
Several residual products have properties suited for
concrete production, there is a large potential in
investigating the possible use of these for concrete
production. Well-known residual products such as silica
fume and fly ash may be mentioned. The concrete
industry realised at an early stage that it is a good idea to
be in front with regard to documenting the actual
environmental aspects and working on improving the
environment, rather than being forced to deal with
environmental aspects due to demands from authorities,
customers and economic effects such as imposed taxes.
Furthermore, some companies in concrete industry have
recognised that reductions in production costs often go
hand in hand with reductions in environmental impacts.
Thus, environmental aspects are not only interesting from
an ideological point of view, but also from an economic
aspect.
A.RECYCLED MATERIALS IN GREEN
CONCRETE:
The production of cement used in concrete results in the
creation of greenhouse gases, including CO2. The U.S.
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2. cement industry has reduced CO2 emissions by 30%
since 1972 and now accounts for approximately 1.5% of
U.S. emissions, well below other sources such as heating
and cooling homes and buildings (33%), truck and auto
use (27%) and industrial operations (19%). The CO2
embodied in concrete as a finished building product is a
very small quantity considering that cement accounts for
a small proportion of the finished product.
The concrete industry also uses industrial waste by-
products such as fly ash (from coal combustion) and
blast furnace slag (created in iron manufacture) to
constitute a portion of the cement used in producing
concrete. Use of such by-products in concrete prevents
15 million metric tons a year of these waste materials
from entering landfills. Utilizing these "supplemental
cementitious materials" as a replacement for cement
improves the strength and durability of concrete and also
further reduces the CO2 embodied in concrete by as
much as 70%, with typical values ranging from 15% to
40%.
Finally, when a concrete structure has served its purpose,
it can be crushed for use as aggregate in new concrete or
as fill or base materials for roads, sidewalks and concrete
slabs. Even the reinforcing steel in concrete (which often
is made from recycled materials) can be recycled and
reused.
B.FLY ASH:
Fly ash is one of three general types of coal
combustion by-products (CCBP’s). The use of these by-
products offers environmental advantages by diverting
the material from the wastestream, reducing the energy
investment in processing virgin materials, conserving
virgin materials, and allaying pollution.
Thirteen million tons of coal ash are produced in
Texas each year. Eleven percent of this ash is used which
is below the national average of 30 %. About 60 – 70%
of central Texas suppliers offer fly-ash in ready-mix
products. They will substitute fly-ash for 20 – 35% of the
portland cement used to make their products.
Although fly-ash offers environmental advantages,
it also improves the performance and quality of concrete.
Fly ash affects the plastic properties of concrete by
improving workability, reducing water demand, reducing
segregation and bleeding, and lowering heat of hydration.
Fly ash increases strength, reduces permeability, reduces
corrosion of reinforcing steel, increases sulphate
resistance, and reduces alkali-aggregate reaction. Fly ash
reaches its maximum strength more slowly than concrete
made with only portland cement. The techniques for
working with this type of concrete are standard for the
industry and will not impact the budget of a job.
This section also addresses wall-form products. Most
of these products have hollow interiors and are stacked or
set in place and then filled with steel-reinforced concrete
creating a concrete structure for a house.
Some wall-form materials are made from EPS
(expanded polystyrene) which is a lightweight non-CFC
foam material. There are also fiber-cement wall-form
products that can contain wood waste. The EPS/concrete
systems offer high insulating qualities and easy
installation. The fiber-cement blocks offer insulating
qualities as well. Some EPS products also have recycled
content.
C.SILICA FUME:
Silica fume, also known as microsilica, is an
amorphous (non-crystalline) polymorph of silicon
dioxide, silica. It is an ultrafine powder collected as a by-
product of the silicon and ferrosilicon alloy production
and consists of spherical particles with an average
particle diameter of 150 nm. The main field of
application is as pozzolanic material for high
performance concrete.
It is sometimes confused with fumed silica.
However, the production process, particle characteristics
and fields of application of fumed silica are all different
from those of silica fume.
Silica fume is an ultrafine material with spherical
particles less than 1 μm in diameter, the average being
about 0.15 μm. This makes it approximately 100 times
smaller than the average cement particle. The bulk
density of silica fume depends on the degree of
densification in the silo and varies from 130 to 600
kg/m3. The specific gravity of silica fume is generally in
the range of 2.2 to 2.3. The specific surface area of silica
fume can be measured with the BET method or nitrogen
adsorption method. It typically ranges from 15,000 to
30,000 m2/kg.
ENVIRONMENTAL GOALS:
Green Concrete is expected to fulfil the following
environmental obligations:
Reduction of CO2 emissions by 21 %. This is in
accordance with the Kyoto Protocol of 1997.
Increase the use of inorganic residual products
from industries other than the concrete industry
by approx. 20%.
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3. Reduce the use of fossil fuels by increasing the
use of waste derived fuels in the cement industry.
The recycling capacity of the green concrete
must not be less compared to existing concrete
types.
The production and the use of green concrete
must not deteriorate the working environment.
The structures do not impose much harm to the
environment during their service life.
ADVANTAGES OF GREEN CONCRETE:
Green concrete has manifold advantages over the
conventional concrete. Since it uses the recycled
aggregates and materials, it reduces the extra load in
landfills and mitigates the wastage of aggregates. Thus,
the net CO2 emissions are reduced. The reuse of
materials also contributes intensively to economy. Since
the waste materials like aggregates from a nearby area
and fly ash from a nearby power plant are not much
expensive and also transport costs are minimal. Green
concrete can be considered elemental to sustainable
development since it is eco-friendly itself. Green concrete
is being widely used in green building practices.
It also helps the green buildings achieve LEED and
Golden Globe certifications. Use of fly ash in the
concrete also increases its workability and many other
properties like durability to an appreciable extent. One of
the practices to manufacture green concrete involves
reduction of amount cement in the mix, this practice
helps in reducing the consumption of cement overall. The
use waste materials also solve the problem of disposing
the excessive amount industrial wastes.
There are several other advantages related to green
concrete and can be summarized as below:
a) Reduced CO2 emissions.
b) Low production costs as wastes directly substitute
the cement.
c) Saves energy, emissions and waste water.
d) Helps in recycling industry wastes.
e) Reduces the consumption of cement overall.
f) Better workability.
g) Sustainable development.
h) Greater strength and durability than normal
concrete.
i) Compressive strength and Flexural behaviour is
fairly equal to that of the conventional concrete.
j) Green concrete might solve some of the societies
problems with the use of inorganic, residual products
which should otherwise be deposited.
CONCLUSION:
The newer the technologies simultaneously it must
be eco-friendly. Using Green concrete in Construction
field is a revolution for the eco-friendly civil
infrastructural development. Upcoming generation must
use the green concrete instead of conventional concrete
so that CO2 emission is considerably reduced.
REFERENCES:
[1] www.greenconcrete.info
[2] http://greenglobe.com/
[3] http://flyash.sustainablesources.com
[4] http://www.microsilica-china.com
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