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Fiber Reinforced concrete ( FRc )

Created and presented by: Baquero, Victor Brown, Chris Thielbar, Trenton. Fiber Reinforced concrete ( FRc ). What is fiber reinforced concrete. A concrete consisting of, cement, water, fine and coarse aggregate, along with discontinuous fibers. Types of fibers. Types of fibers include

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Fiber Reinforced concrete ( FRc )

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  1. Created and presented by: Baquero, Victor Brown, Chris Thielbar, Trenton Fiber Reinforced concrete (FRc)

  2. What is fiber reinforced concrete • A concrete consisting of, cement, water, fine and coarse aggregate, along with discontinuous fibers.

  3. Types of fibers • Types of fibers include • Steel • Plastic • Polyester, Polypropylene, Polyethylene • Glass • Natural materials • Wood cellulose, Bamboo, Elephant grass All are available is different shapes sizes and materials

  4. Types of fibers • Steel • Shapes • Steel fibers are adhered together before mixing and separate while mixing to ensure uniform distribution

  5. Advantages of using fiber reinforced concrete versus plain concrete • Improves toughness of concrete • Flexural strength is improved by up to 30% by decreasing the propagation of cracks • Improves tensile strength • More economical than steel reinforcement • Less prone to corrosion • Gives an alternative way to reinforce concrete other then traditional steel rebar

  6. PCC FRC

  7. Corrosion • Unlike rebar there is not galvanic cell created in the fibers • No anodic/cathodic reaction • pH level of concert protects steel fibers from corrosion

  8. Applications • Applications include: • Pipes • Tilt-up Panels • Shotcrete • Slabs • Counters tops • Bath tubs • Tiles

  9. Properties • Durability • Made with a high content of cement and low water to cement ratio • When properly compacted and cured, concrete with steel fibers is very durable • Workability • Affects workability • Compensate by adding superplasticizers

  10. Properties • Compressive behavior of steel FRC • Keeps integrity after failure • Strength slightly enhanced • Tensile behavior • increase tensile strength • Has little effect on the modulus of elasticity, drying shrinkage, and creep

  11. Production • Production is guided and controlled mainly by the American Concrete Institute, ASTM, and various building codes • Production involves 5 Steps • Determine typical Uses and Specifying FRC • Materials • Mixture Proportioning • Batching, Mixing, Delivery and Sampling • Placing and Finishing

  12. Summary • Fiber reinforced concrete is one of the oldest methods for reinforcing concrete • The main purpose of fiber reinforcement is to increases its structural integrity and improve flexural behavior • There are many different types of fiber that can be used for concrete reinforcement. • Is an economical way to reinforced concrete compared to regular steel.

  13. References • Mamlouk, Michael, and John Zaniewski. Materials for Civil and Construction Engineers. Second Edition. N.J.: Pearson Hall, 2006. 576. Print • Mehta, P.K., and P.J.M Monteiro. "Fibers in Concrete." University of Californa, Berkeley, 04,May,2006. Web. 1 Dec 2010. <http://www.ce.berkeley.edu/~paulmont/241/fibers.pdf • Nemati, Kamran. "Progress in Conctet Technology: Fiber Reinforced Conctete (FRC)." University of Wahington. University of Washington, Seattle, Wahington, USA. Spring 2010. Lecture. • SMiRT 19, . "WOKSHOP ON: Fiber Reinforced Concrete." ASMiRT, 17,August,2007. Web. 1 Dec 2010. <http://www.iasmirt.org/iasmirt-2/SMiRT19/SMiRT19_WH3_Tatnall.pdf>.

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