Concrete Elements
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Transcript of Concrete Elements
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YOGAPAARTHIBAN JOGAPRAJAHPAN
110265B
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Concreteis a mixture of sand, gravel and/or other aggregates (thematrix), bound together by a water-based binder, cement.
Admixtures (modifying agents) and additives (fine mineral powders)
are sometimes introduced to improve the characteristics of the
fresh concrete, of the mixing process and/or of the final hardened
material.
World Business Council on Sustainable Development, Concrete
Recycling - A contribution to Sustainability, 2008.
What is Concrete ?
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ConcreteStrength
WorkabilityHeat
generation
Consistency
Durability
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Sample concrete mix as per British Standard
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Concrete Elements in Construction
BeamsColumns
Concrete Slabs
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A beamis a structural element that is capable of
withstanding load primarily by resisting bending. Thebending force induced into the material of the beam as a
result of the external loads, own weight, span and external
reactions to these loads is called a bending moment
Beams
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A column is a structural members designed to
carry compressive loads composed of concrete with anembedded steel frame to provide reinforcement.
For design purposes, the columns are separated into two
categories:
short columnsslender columns.
Columns
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A concrete slabis a common structural element of modern
buildings. Horizontal slabs of steel reinforced concrete,typically between 100 and 500 millimeters thick, are most
often used to construct floors and ceilings.
Concrete slab
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Precast concreteelements
A precast concreteproduct is a factory-made piece
manufactured with concrete and which, later, together withother pieces, will become part of a larger structure.
Precast concrete elements are prepared, cast and hardened
at specially equipped plants with a permanent location.
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Strength and durability
Design flexibility
Manufactured year-round in controlled conditions
Fast constructionEnhanced fire resistance
Wide range of colours, textures and shapes
Expecting characteristics of
Precast elements
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In-house concrete production
Concrete is prepared in the field and this fresh concrete will be
used for concrete elements (beams, coloumns ) construction
instead of using precast structures.
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Site Visit
Place : Proposed building forTLM Department
University of Moratuwa.
(5 story building)
Project Value: Rs 112million
Date : 29/11/2012
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3D View of the building
Architectural drawing
of the land
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Concrete Elements
Timber arrangement for coloumn
construction
Constructed coloumn and beams
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Pad foundation for coloumn construction
Steel rods for balancing coloumns
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Width
Length
Height
Length and Width will vary with respect to
load bearing capacity of coloumn.
Height will be depended on which floor
coloumn constructing.
Reinforcement can be changed by no of
rods used and distance between each rods
low no of rods- single or two story
buildings.
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Images of sitevisit
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