Question

A sheepsfoot roller compactor will be used to compact two continuous segments of a road each 2800 feet. The on site testing indicates that the work will require two passes in first gear for breakdown, two passes in second gear for intermediate and for final finishing rolling three passes in fourth gear. Use an efficiency factor of 60%. How long will it take to complete the work? Roller speeds are as given below. (Show your calculations). Total road length distance 3 miles 1st gear 2nd gear 2.5 mph 3.1 mph 4.2 mph 7.0 mph 3rd gear 4th gear

Answer 1

Total length = 2800 xd = 5600 feet 5600 5280 1:06 miles length of cone core passa 100% = 0.1514 miles st tuo geas: passes d- 2x0.1514 = 0.30.28 miles 2.5 mph ti q 0.12112 has. and gear : Hello passes 3.1 mph t e 0-3028 0.0976 h 3.1 with gear passes d= uxo.1514 = 0.6056 miles La 7 mph ta 0.0865 hrs. Total time taken t,+ tattu T: 0.3059 0.3059 his. T= 18.3132 min.