Historical Perspective

• BC horse Hair

• 1900 asbestos fibers, Hatscheck process

• 1920 Griffith, theoretical vs. apparent strength

• 1950 Composite materials

• 1960 FRC

• 1970 New initiative for asbestos cement replacement

• 1970 SFRC,GFRC, PPFRC, Shotcrete

• 1990 micromechanics, hybrid systems, wood based fiber systems manufacturing techniques, secondary reinforcement, HSC ductility issues, shrinkage crack control.

• 2000+ Structural applications, Code integration, New products.

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