The thickness of a PCC pavement is 26 cm and the width of the lane is 3.5 m. Find the length of a tie bar system along the longitudinal joints if the allowable working stress in concrete is 1250 kg/cm2, unit weight of concrete is 2400 kg/m3, coefficient of friction is 1.4, allowable bond stress in deformed bars is 24.6 kg/cm2 and allowable tensile stress in deformed bars is 2000 kg/cm2.

The thickness of a PCC pavement is 26 cm and the width of the lane is

1.	The thickness of a PCC pavement is 26 cm and the width of the lane is 3.5 m. Find the length of a tie bar system along the longitudinal joints if the allowable working stress in concrete is 1250 kg/cm2, unit weight of concrete is 2400 kg/m3, coefficient of friction is 1.4, allowable bond stress in deformed bars is 24.6 kg/cm2 and allowable tensile stress in deformed bars is 2000 kg/cm2.
A.	75 cm
B.	70 cm
C.	85 cm
D.	80 cm
Answer» C. 85 cm

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