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Work Capacity (output, efficiency) of Road Construction equipment / Machines and their work efficiency


Work Capacity (output, efficiency )  and Name of various types equipments used in road construction,Railways work, Building works and other construction areas.


1- Motor Grader

Let us assume 
Speed of motor grader during working                            = 4 Km / Hour = 4000 Met/ Hour

Width of Blade                =         3.66 Met.

Layer Thickness       =          0.200 Mtrs.

Number of Passes           =          4
   efficiency factor                  =   80 %

Capacity  = (4000 X 3.66 X 0.80 X 0.200) /4 = 585.6 Cum /Hour





2- Excavator

Volume of bucket                   =          1.02Cum

Cycle Time during operation =          30 Sec.
                              = 30/3600= 0.00833 Hour

Efficiency Factor              =          85%

Capacity = (1.02 X 0.85) / 0.00833 = 104.081Cum / Hour







 3- Wheel Loader



Volume of bucket.   =    1.20 Cum

Cycle Time During plant operation  =          2 Minute = 2/60 =  0.0333 Hour

Efficiency  Factor           =          85%

Capacity = (1.20X 0.85) / 0.0333=   30.60 Cum / Hour




4 - Back Hoe Loader / Tractor Loader Back Hoe

A - Shovel (Loader bucket)

volume of  Shovel  = 1.1 Cum

Operation Cycle Time =       2 Minute
                                    = 2/60 =  0.0333 Hour
Efficiency    Factor               =          80%

Capacity = (1.1 X 0.80) / 0.0333 =26.426 Cum / Hour

B - Backhoe

volume of  backhoe bucket = 0.24 Cum

Operation Cycle Time =       2 Minute
                                    = 2/60 =  0.0333 Hour
Efficiency  Factor                 =          80%

Capacity = (0.24 X 0.80) / 0.0333 =5.77 Cum / Hour




5 - Dozer /Bulldozer/ Crawler  Dozer

Speed  of Dozer      =   2 Km / Hour

                   = 2000 Mtr. / Hour
No. of Passes    =   4 passes

Width of Blade     =     2 Mtr.

Operating Efficiency Factor   =    80%

Capacity          =     (2000 X 2 X 0.80) /4
= 800 square mtr. / Hour/ pass
Thickness of soil layer = 200 mm = 0.200 Mtr. 
Levelling of soil  = 800 x 0.2
= 160 Cum / Hour.



6- Dump Truck / Dumper truck / Tipper truck

Capacity to Tipping truck    =  15 Cum

          Calculation for Cycle Time

      Average Lead  =  5 Km (10 Km Bothside)

            Loading Time = 14 Mins.
Let

 Leading Average Speed = 50 Kmph

Average time taken by tipping truck = 10/50 = 0.2 Hour = 0.2 X 60 Min. = 12 Min

            Unloading time   =    5.5 Mins

            Total Cycle Time  = 14+12+5.5               =    31.5 Mins  = 31.5/60 Hour = 0.525 Hour

       Capacity= 15 / 0.525= 28.57 Cum /hour
                      = 29 Cum / Hour



7-  Transit Mixer (TM)


Capacity to TM   =  6.5 Cum

          Calculation for Cycle Time

      Average Lead  =  5 Km (10 Km Bothside)

            Loading Time = 3.5 Mins.

 Let

 Leading Average Speed = 50 Kmph

Average time taken by tipping truck = 10/50 = 0.2 Hour = 0.2 X 60 Min. = 12 Min

            Unloading time (Including washing)    =    25 Mins

            Total Cycle Time  = 3.5+12+25               =    40.5 Mins  = 40.5/60 Hour = 0.675 Hour

       Capacity= 6.5 / 0.675= 9.63 Cum /Hour = 10 Cum / Hour
     






8- Roller

Double frequency composed vibration(DVF)
 (Static weight of roller  = 8-10 Tonn)

Speed of roller    =  2 Km /Hour
                                    = 2000 Met/ Hour

Width of drum            =          2.10 met.
                                      =
Layer Thickness       =          0.200 Met.

Efficiency  Factor           =          85%

Number of rolling Passes           =          6

Capacity = (2000 X 2.10X 0.85 X 0.200) /6 = 119 Cum / Hour


A - Soil compactor



B - Tandem



9-  Pneumatic Tyre Roller (PTR)

Speed of PTR            =  10 Km /Hour
                                    = 10000 Met/ Hour

Width of rolling lane =          2.50 met.
                                      =
Layer Thickness       =          0.050 Met.

Efficiency  Factor                  =          80 %

Number of rolling Passes           =   7

Capacity = (10000 X 2.50X 0.80 X 0.050) /7 = 142.86 Cum / Hour = 143 Cum / Hour





10 - Asphalt laying Paver Machine (Bituminous layer laying paver machine)

Paver model vogele  super 2000 - 3i

 Laydown Capacity         = 300 tonn/ Hour
Efficiency factor                      = 80%

Capacity                = 300 X 0.80  = 240 tonn /Hour





11 -  Inset Slipform Paver





With inset slipform pavers, the concrete is placed directly in front of the machine and distributed by a spreading auger or spreading plough. Vibrators compact the concrete homogeneously and the mold forms it in the specified width and thickness as the slipform paver advances. Integrated dowel bar and tie bar inserters position dowel bars and tie bars as specified. The finishing beam levels the area transverse to the pavement and the super smoother creates a perfect surface. When paving dual-layer concrete, the bottom-layer and top-layer concrete are processed simultaneously and paved wet-in-wet.


12 - Fixed form paver





13 - Asphalt mix plant / Hot mix plant


Capacity of plant = 200 TPH(Tonn per hour)
efficiency Factor = 80%
Capacity  = 200 X 0.80
                 = 160 TPH



14 - Batch plant / Batching plant / Concrete plant

Batching Plant Capacity        = 60 Cum/ Hour
Efficiency factor                      = 80%

Capacity                = 60 X 0.80  = 48 Cum/Hour




15 - Mobile  crane


16 - Fixed Mobile crane 



Thank you 
Mukesh Kumar 
Gyan of engineering 

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