Total 37 1 DEPARTMENT OF CIVIL ENGINEERING Eastern Mediterranean University Prepared by Prof.Dr. Özgür EREN Division of CONSTRUCTION MATERIALS
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DEPARTMENT OF CIVIL ENGINEERING Eastern Mediterranean University
Prepared by Prof.Dr. Özgür EREN
Division of CONSTRUCTION
MATERIALS
Materials in Construction
Modern buildings often comprise vast
number of components, many
premanufactured and simply assembled on
site, while some, such as concrete, are
manufactured in situ.
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In each case, satisfactory operation of the
building as a whole depends on the
performance of the materials from which its
components are made as well as on how they
interact with each other in the building.
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Materials in Construction
Before assessing the suitability of any one
material for a given situation, the
“performance” requirements for that
situation must be identified.
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Materials in Construction
Such requirements might include:
⌦ Structural safety
The ability to withstand stresses resulting from gravity, wind,
thermal or moisture movement, or other resourses.
⌦ Health/safety
There should be no risk to health due to chemical or physical
effects of the material both during and after construction.
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⌦ Fire
The material must behave acceptably in resisting fire
spread, release of dangerous substances in fire and
retaining satisfactory structural stability.
⌦ Durability
The material should fulfil the above performance
criteria as required for the planned lifetime of the
building.
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Buildings are unique in situation, composition or function.
For each building, the performance requirements
must be identified. The subject is complex. Construction team should benefit from a through
knowledge of materials properties, applications and limitations.
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Materials in Construction
In addition to the above performance requirements,
the following might also have to be considered:
▶ Availability/cost
▶Ease with which material can be incorporated into the building (buildability)
▶ Environmental aspects—energy demand of the material during manufacture and ability to conserve energy in use.
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Materials in Construction
Specifications and Standards
Buildings are produced with the aid of some written specifications.
Detailed annotations to drawings, a bill of quantities, or separate documents are part of the contract.
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Some form of written specification is highly
desirable.
It communicates to the construction team
exactly what is required.
Provides for the clients a basis on which
unsatisfactory performance may be identified
and remedied.
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Specifications and Standards
Specifications are almost invariably centered
around accepted standards which provide a
simple, convenient means of specifying
performance levels.
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Standards measure performance in a
carefully defined reproducible manner.
They are subject to change as
understanding of materials properties
increases, experimental techniques improve
and performance requirements evolve.
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European Codes & Standards
These provide a mechanism by which construction
products and materials can be traded and used freely
throughout the European Common Market.
They are prodyced by Technical Committees of the
European Committee for Standardisation (CEN).
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There are nine Eurocodes: 1. General and actions
2. Concrete 3. Steel 4. Composite (concrete/steel) 5. Timber 6. Masonry 7. Foundations 8. Seismic design 9. Aluminium
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European Codes & Standards
Each Eurocode can be regarded as a code of practice, being backed up by
European Standards (ENs).
These standards are based on six “essential requirements” relating to
health, safety, and energy conservation.
These are:
Stability Safety in fire Safety in use Health Noise Heat retention
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Any product which complies with the esential requirements given in the
standard is eligible to carry a “CE” mark.
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TYPES OF MATERIALS
CONCRETE & CONCRETE MAKING MATERIALS:
☞ Cement
☞ Aggregate (fine & coarse)
☞ Water
☞ Mineral & chemical admixtures
SPECIAL CONCRETES
High Strength Concrete
Ultra High Strength Concrete
Fiber Reinforced Concrete
Polymer Concrete
Light-Weight Concrete
Self-Compacting Concrete
Foam Concrete
Shotcrete
Glass Concrete
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OTHER OF MATERIALS IRON & STEEL
WOOD
CLAY PRODUCTS (BRICKS, TILES)
POLYMERS
GLASS
INSULATION MATERIALS (heat, sound, moisture)
FIBERS (steel, carbon, polymer, etc)
LIME
GYPSUM
STONE
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COURSES TAUGHT
Undergraduate (BS degree) courses:
CIVL283 Materials Science
CIVL284 Materials of Construction
CIVL481 Quality Control of Concrete (Area Elective)
CIVL482 Advanced Materials of Construction (Area Elective)
CIVL484 Repair & Maintenance of Concrete (Area Elective)
Graduate (MS/PhD) degree courses:
1. High Strength Concrete
2. Fiber Reinforced Concrete
3. Creep & Shrinkage of Concrete
4. Cement Replacement Materials
5. Concrete Construction
6. Durability of Building Materials
7. Chemical Admixtures for Concrete
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Materials of Construction Laboratory Ground Floor, Civil Engineering Building, EST.1980
◈ Cement (fineness, flexural and compressive strength, specific gravity, unit weight, heat of hydration)
◈ Aggregate testing (sieve analysis and grading, impact value, crushing value, Los Angeles testing, void content, specific gravity, moisture absorption)
◈ Fresh concrete testing (slump, vebe, compacting factor,
entrapped air meter, kelly ball, flow table, mortar viscometer, properties of self compacting concrete, plastic shrinkage)
◈ Hardened concrete testing (compressive, tensile, flexural, splitting, water permeability - kit and laboratory style, linear drying shrinkage, rapid chloride permeability)
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◈ Mixers (two concrete pan mixers, one tilting concrete/mortar mixer, two mortar mixers)
◈ Compaction Equipment (vibrating tables for mortar and concrete, poker vibrator)
◈ Curing (accelerated curing, temperature controlled curing, water curing, fog room)
◈ Universal testing machine (closed loop 3000 kN compression, 200 kN tension, strain rate controlled, fully computer controlled with software)
◈ Hot Box (Thermal properties of brick walls)
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◈ Low scale testing machines (compression and flexural)
◈ Non-destructive testing equipment (hammer, ultrasonic pulse velocity tester, concrete cover meter, reinforcement detector, digital concrete hammer, maturity meter)
◈ Destructive testing equipment (water permeability, concrete cores)
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Department of Civil Engineering
Eastern Mediterranean University
Spring 2014-15
HIGHEST CONCRETE STRENGTH COMPETITION
Design & make your own concrete! Impress your friends! Break stuff!
Win 1st: 600 TL, 2nd: 300 TL, 3rd: 200 TL
Apply until 11 March 2015
Participants will be from Civil Engineering Department Undegraduate students from all TRNC
Universities. Teams can be mininum 2 and maximum 3 persons. Registration forms and related
documents will be collected from http/civil.emu.edu.tr and filled forms should be sent to
[email protected]. Evaluation will be based on highest concrete compressive strength among all
results after 28 days of casting concrete cube. Certificates and awards will be given to winners during
Civil Engineering Week (May 2015).
Rules
o Limit 1 specimen per entry, a 150 mm x 150 mm cube mold will be provided.
o Limit 500 g Portland cement, to be provided by EMU Department of Civil Engineering.
o Limit 1 batch per specimen (do not waste your cement!).
o Concrete must be mixed by hand, supervised in the EMU Materials of Construction Lab.
o Curing:
o Any curing method in EMU Materials of Construction Lab.
o Cube must be at or near room temperature at the time of testing (28 days after casting)
o No external loads may be applied during curing
o Laboratory materials available: BEM Cement class 32,5, crushed fine and coarse limestone aggregates,
water.
o Any other materials (admixtures, fibers, etc.) will not be allowed.
SPONSORED BY:
THANK YOU
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