3.1_Concrete%20rev

3.1_Concrete%20rev - Whatisthiscalled? DIVISON3...

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What is this called? DIVISON 3
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Concrete or Ready Mix Truck
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Big Red
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Division 2 – Soldier Beam (pile)  and Lagging
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Soldier Beam
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Division 2 – Sheet Pile
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Division 2 – Sheet Pile
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Division 2 – Sheet Pile
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Division 2 – Sheet Pile
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Division 2 - Design
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Division 2 - Design
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Division 2 - Design
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Soldier Pile and Lagging
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Soldier Pile and Lagging
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Soldier Pile and Lagging
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Soldier Pile and Lagging
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Soldier Pile and Lagging
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Division 2 - Design
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Division 3 - Concrete Primary benefits of concrete Great in compressive strength Field “mold-able”
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History of Concrete First use by Romans – 3 rd  Century BC Use diminished with fall of Roman Empire 1824 – Leeds, England Joseph Aspdin named cement after gray rock  found on the Isle of Portland in the English  Channel Use of reinforced concrete was widespread  by early 1900’s.
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More than you need to know - Detailed history of concrete – For  Dr.  Muszynski Word Doc ..\concrete_history.doc
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Concrete Properties High in compression Low in tension Reinforcing steel or iron
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Compression and Tension
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Compression and Tension
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Concrete Pillars
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Types of Tensile Reducers Prestressed cables – cables under  tension prior to concrete pour. Post-tension cables – cables stressed  after concrete has been poured and  cured.
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Types of Tensile Reducers
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Advances Reuseable Forms Flying forms Advanced Portlands Ad-mixtures Prestressing steel Post-stressing steel Glass-fiber-reinforcing Onsite batch plants Machine/placing (screeds/vibrators)
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Precast Concrete http://www.pci.org/intro.cfm
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Precast Concrete
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3.1_Concrete%20rev - Whatisthiscalled? DIVISON3...

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