Concrete as a construction material. What Is Concrete Used For? Construction Material Art Work.

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    28-Mar-2015

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<ul><li>Slide 1</li></ul> <p>Concrete as a construction material Slide 2 What Is Concrete Used For? Construction Material Art Work Slide 3 Concrete Bench made by 8 th grade students Slide 4 Question What other concrete products and applications can you think of ? Slide 5 Why Is Concrete Used? Economics Inexpensive, readily available Material Properties Long Lasting Molded into a desired shape Great insulator Hard Slide 6 Material Properties (cont.) Great Compressive Strength (up to 8000 psi) Poor Tensile Strength (almost 0) Reinforcement methods ($) Slide 7 Question What is the difference between tension and compression? Slide 8 Slide 9 Question Why would concrete ever be used in tension? Slide 10 Why Do We Reinforce Concrete? Prevent cracking due to tension forces Slide 11 How Do We Reinforce Concrete? Steel rebar Excellent in tension, poor in compression Chicken Wire Minimize thermal expansion Slide 12 Pictures Failed concrete structures due to earth quakes Slide 13 Slide 14 Slide 15 Slide 16 Slide 17 Slide 18 </p>

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