L-9 Concrete

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7 Terms

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Reinforced Concrete

  • Concrete in not ductile and can break without warning

  • Concrete is strong under compression, but weak under tension

  • *Short* steel does well under both tension and compression

  • Adding steel (rebar) prevents concrete from cracking and increases its ductility

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Concrete Beams

  • Not uniform throughout

<ul><li><p>Not uniform throughout </p></li></ul><p></p>
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Slabs

Reinforced concrete slabs are using in floors, roofs, walls, decks, and bridges.

Slabs cover a large area and their reinforcement is best visible in plan view

<p>Reinforced concrete slabs are using in floors, roofs, walls, decks, and bridges.</p><p>Slabs cover a large area and their reinforcement is best visible in plan view </p>
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Rebar Terminology & Rules

Layers of Reinforcement:

  • Top upper layer (TUL)

  • Top lower layer (TLL)

  • Bottom upper layer (BUL)

  • Bottom lower layer (BLL)

Bars are shown as a single thick line when placed parallel to the projection plane

Bars are shown as circles when placed perpendicular to the projection plane

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<p>Composite slab</p>

Composite slab

Concrete and steel are connected

<p>Concrete and steel are connected</p>
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Prefabricated Concrete: Hollow slabs

  • Cinder Blocks

<ul><li><p>Cinder Blocks</p></li></ul><p></p>
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Bar Bending Schedule

  • Contains a list of all the bars needed for a particular concrete component within a build

  • Its purpose is to minimize waste

<ul><li><p>Contains a list of all the bars needed for a particular concrete component within a build</p></li><li><p>Its purpose is to minimize waste</p></li></ul><p></p>

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