green concrete for a sustainable future al hammadi.pdf · green building engineer dubai...
TRANSCRIPT
L/O/G/O
Green Concrete for a
Sustainable Future
Presented by
Eng. Fida Mohammed Ahmed
Green Building Engineer
Dubai Municipality
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مــبــانــيــنا حـلم الــعالــــم: رؤيـــتــنــا
Dubai Plan 2021 : A Smart & Sustainable City
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Vision: Creating an excellent city that provides
sustainable essence of success and comfort of living
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Green Building
Regulations & Specifications
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Cost
Increase (max)
IAQ Compliance
CO2 Reduction
Waste Reduction Water
Savings
Energy
Savings
Municipal Construction
5% 90% 20%
60%
50%
15%
20%
Targets for Green Building Regulations
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Green Building
Regulations & Specifications
Practice Guide
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Manual of Green Building
Materials, Products & Their
Testing Materials
L/O/G/O
Green Concrete
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Click to add title in here His Highness Sheikh Mohammed bin Rashid Al Maktoum, UAE
Vice President,Decision No. 24 of 2011
According to this decision, all cement factories must obtain an
Environmental Permit before direct its activities, and the amount of
smoke, gases and vapors must be within the allowed limits.
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Disadvantages of Production and Use of Portland Cement
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Green Cementitious Materials
The most important of those
materials:
1. Ground Granulated
Blast Slag (GGBS)
2. Fly Ash (FA)
3. Silica Fume (SF)
4. Fiber Glass (FGL)
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Ground Granulated Blast-furnace Slag (GGBS),
also called Slag Cement, is a by-product of steel industry.
It is commonly used as a partial substitute for Portland cement
at a replacement level of up to 80%.
Fly ash is a by-product of the burning of coal in electric power generating plants.
It is commonly used as a partial substitute for
25 to 55% of the Portland cement in concrete.
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Silica fume is a by-product from the electric furnace used in the
production of silicon alloy.
Silica fume is commonly used as a partial substitute for Portland cement in
concrete at replacement levels of 5 to 10%.
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Fiber Glass is a material made up of very fine fibers of glass.
The amount of fibers added to a concrete mix is expressed as a
percentage of the total volume of the composite (concrete and fibers)
typically ranges from 0.1 to 3%.
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Advantages of green cementitious materials
1) Increase the life of concrete elements / structures
2) Reduce the amount of carbon dioxide emissions by 80%.
3) Increase the concrete compressive strength for minimum
20% after 90 days of casting date.
4) Better resistance to salts, thus produce sustainable concrete.
5) Improve concrete workability.
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1 6) Reduce the rate of cracking of concrete.
7) Reduce moisture and water permeability in the concrete
and thus reduce the probability of steel rusting
8) Improve the degree of thermal insulation for concrete
9) Improve degree of fire resistance of concrete.
Advantages of green cementitious materials
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Are the Eco-Friendly materials available in the markets?
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Are the Eco-Friendly materials available in the markets?
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Are the prices of Eco-Friendly materials equivalent to those of
Portland cement??
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100% have supported the use of alternative materials as
a partial substitute to Portland cement
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Sharing all the stakeholders of construction field
in the decision making of using eco-friendly
cementitious materials in concrete
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1 DM Circulation (202) regarding using eco-
friendly cementitious materials in concrete
Green Concrete Press Conference
Green Concrete Press Conference
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1 DM Circulation (202)
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THANK YOU