Question

10.7 Estimate the total cost and cost per pound of reinforcing steel for a concrete slab on grade. The floor will be 55 ft long, 70 ft wide, and 6 in. thick. The reinforcing steel will be no. 4 bars G in. dia) spaced not more than 12 in. apart each way in the slab. The bars laid next to and parallel to the edges of the slab will be placed 3 in. from the edges of the slab. The ends of the bars will extend to within 2 in. from the edges of the slab. Skilled steel setters will be used at a cost of $29.00/hr. The cost of reinforc- ing steel delivered to the job will be $0.46/lb. Use average values from Table 10.8. 10.8 If the concrete slab in Prob. 10.7 is 9 in. thick, estimate the labor cost for placement of the concrete by direct chute from the concrete delivery truck. Use average values from Table 10.11 and assume the unit cost of labor is $28.00/hr.

Answer 1