CFI's Driven Pile Academy: Hosted by the PDCA

Allowable Driving Stresses Steel Piles: 90% of yield strength for steel Concrete Piles - pre -stressed Compression: (85% of f c ’ ) - prestress Tension (PS): prestress + (3 √ f c ’ )

Regularly-reinforced

Compression: 85% of f c ’ Tension (RR):

70% of yield of reinforcement

Load Testing and Quality Assurance

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