Cutting Switchboxes

Task / Description Slow   Ave   Fast    Units
 Cutting in Concrete, small box 7.1  9.5  12.5   no/hr
 Cutting in Concrete, large box 3.6  4.5  5.6   no/hr
 Cutting in Brickwork, small box 6.6  9.5  12.5   no/hr
 Cutting in Brickwork, large box 4.2  5.3  6.3   no/hr
 Cutting in Lightweight Blockwork, small box 20.0  23.0  25.0   no/hr
 Cutting in Lightweight Blockwork, large box 10.0  12.5  14.3   no/hr
 Cutting in Heavyweight Blockwork, small box 7.7  10.0  12.5   no/hr
 Cutting in Heavyweight Blockwork, large box 3.8  4.8  5.9   no/hr

 

Cutting Chases

Task / Description Slow   Ave   Fast    Units
 Concrete, cutting by hand, < 25mm wide 1.5  2.1  3.1   m/hr
 Concrete, cutting by hand, 25-50mm wide 1.2  1.6  2.5   m/hr
 Concrete, cutting by hand, 50-75mm wide 1.0  1.4  2.1   m/hr
 Concrete, cutting by hand, 75-100mm wide 0.9  1.2  1.8   m/hr
 Concrete, cutting by machine, < 25mm wide 3.1  4.0  5.8   m/hr
 Concrete, cutting by machine, 25-50mm wide 2.5  3.3  5.0   m/hr
 Concrete, cutting by machine, 50-75mm wide 2.1  2.9  4.2   m/hr
 Concrete, cutting by machine, 75-100mm wide 1.8  2.4  3.7   m/hr
 Brickwork, cutting by hand, < 25mm wide 2.1  2.7  4.1   m/hr
 Brickwork, cutting by hand, 25-50mm wide 1.6  2.3  3.5   m/hr
 Brickwork, cutting by hand, 50-75mm wide 1.4  1.9  2.8   m/hr
 Brickwork, cutting by hand, 75-100mm wide 1.2  1.6  2.5   m/hr
 Brickwork, cutting by machine, < 25mm wide 4.2  5.5  11.1   m/hr
 Brickwork, cutting by machine, 25-50mm wide 3.3  4.5  6.7   m/hr
 Brickwork, cutting by machine, 50-75mm wide 3.3  4.5  6.7   m/hr
 Brickwork, cutting by machine, 75-100mm wide 2.5  3.3  5.0   m/hr
 Light Blockwork, cutting by hand, < 25mm wide 3.8  5.0  7.7   m/hr
 Light Blockwork, cutting by hand, 25-50mm wide 3.2  4.2  6.3   m/hr
 Light Blockwork, cutting by hand, 50-75mm wide 2.6  3.4  5.3   m/hr
 Light Blockwork, cutting by hand, 75-100mm wide 2.3  3.1  4.5   m/hr
 Light Blockwork, cutting by machine, < 25mm wide 7.7  10.0  14.2   m/hr
 Light Blockwork, cutting by machine, 25-50mm wide 5.9  7.7  11.1   m/hr
 Light Blockwork, cutting by machine, 50-75mm wide 5.2  7.2  10.0   m/hr
 Light Blockwork, cutting by machine, 75-100mm wide 4.7  6.3  9.1   m/hr
 Heavy Blockwork, cutting by hand, < 25mm wide 1.9  2.6  3.8   m/hr
 Heavy Blockwork, cutting by hand, 25-50mm wide 1.6  2.1  3.2   m/hr
 Heavy Blockwork, cutting by hand, 50-75mm wide 1.3  1.8  2.7   m/hr
 Heavy Blockwork, cutting by hand, 75-100mm wide 1.2  1.5  2.3   m/hr
 Heavy Blockwork, cutting by machine, < 25mm wide 3.8  5.0  7.7   m/hr
 Heavy Blockwork, cutting by machine, 25-50mm wide 3.2  4.2  6.2   m/hr
 Heavy Blockwork, cutting by machine, 50-75mm wide 2.7  3.6  5.2   m/hr
 Heavy Blockwork, cutting by machine, 75-100mm wide 2.3  3.1  4.5   m/hr

 

Cutting Back for Pile Caps

Task / Description Slow   Ave   Fast    Units
 Concrete Pile Caps, 50-300mm deep and 0.6m dia 0.6  -   0.3   hrs/no
 Concrete Pile Caps, 300-750mm deep and 0.6m dia 1.5  -   0.4   hrs/no
 Concrete Pile Caps, > 750mm deep and 0.6m dia 1.8  -   0.8   hrs/no
 Concrete Pile Caps, 50-300mm deep and 1.1m dia 1.9  -   0.8   hrs/no
 Concrete Pile Caps, 300-750mm deep and 1.1m dia 2.5  -   1.1   hrs/no
 Concrete Pile Caps, > 750mm deep and 1.1m dia 4.2  -   2.3   hrs/no
 Concrete Pile Caps, 50-300mm deep and 2.5m dia 9.2  -   8.2   hrs/no
 Concrete Pile Caps, 300-750mm deep and 2.5m dia 10.1  -   9.5   hrs/no
 Concrete Pile Caps, > 750mm deep and 2.5m dia 11.5  -   10.2   hrs/no
 Concrete, Cutting Slabs, 5-25m deep -   15.2  -    m/hr
 Concrete, Cutting Slabs, 25-50m deep -   11.5  -    m/hr
 Concrete, Cutting Slabs, 50-75m deep -   6.7  -    m/hr
 Concrete, Cutting Holes, coring machine -   0.2  -    m3/hr
 Concrete, Cutting Back to expose couplers 0.7m slab -   2.5  -    m/day

Penetrating Cone Fracture Rock Breakage.

Tradename of "SunBurst" from Australia.  State of the art, non-explosive chemical rock breakage technology for close proximity excavation applications in mining and civil engineering.

Explosive system, cycle time of 6 mins, giving 0.33 m3 each explosion.

A typical rate of 10 No cycles per hour, giving 3.3 m3/hr/rig.

However, tests have shown differing results...

Fresh granite of class 1 strength - One hole in the floor, yielding 0.15 m3 of rock.  If more holes had been injected, a yield of 0.5 - 1.0 m3 would be expected.

Moderately fresh igneous rock of class 2 strength - Three holes in a sloping trench, in adjacent locations, yielding 2.6 m3 of rock for each hole.

Moderately weathered volcanic rock of class 3 strength - Two holes in the floor, in separate locations, yielding 1.2 - 1.5 m3 of rock for each hole.

 Productivity of Concrete Demolition

 

* Production rates listed are based on 8-hr shift. The above figures are for general estimation purpose only and must not be used to guarantee any production figure to the customer. The actual working results may vary according to the quality and structure of the material to be broken, required degree of material size reduction, installation, condition of the carrier, conditions at the worksite, haulage of the broken material, skills of the operator etc.

Task / Description Slow   Ave   Fast    Units
Hammer (2,200lb - 1,000kg) - 315C Excavator        
   Non-Reinforced Concrete 150cu.yd - 115m3 200cu.yd - 153m3 375cu.yd - 287m3 cu.yd & m3/8hr
   Reinforced Concrete 140cu.yd - 107m3 160cu.yd - 122m3 240cu.yd - 184m3 cu.yd & m3/8hr
   Sedimentary Rock 165cu.yd - 126m3 200cu.yd - 153m3 300cu.yd - 229m3 cu.yd & m3/8hr
   Volcanic Rock 75cu.yd  -   57m3 110cu.yd -   84m3 150cu.yd - 115m3  cu.yd & m3/8hr
 Hammer (3,740lb - 1,700kg) - 330C Excavator        
   Non-Reinforced Concrete 275cu.yd - 210m3 375cu.yd - 287m3  490cu.yd - 375m3 cu.yd & m3/8hr
   Reinforced Concrete 200cu.yd - 153m3 150cu.yd - 115m3 350cu.yd - 268m3 cu.yd & m3/8hr
   Sedimentary Rock 250cu.yd - 191m3 150cu.yd - 115m3 400cu.yd - 306m3 cu.yd & m3/8hr
   Volcanic Rock 135cu.yd - 103m3 150cu.yd - 115M3 275cu.yd - 210m3 cu.yd & m3/8hr
 Hammer (6,946lb - 3,150kg) - 345C Excavator        
   Reinforced Concrete 300cu.yd - 229m3 385cu.yd - 295m3 850cu.yd - 650m3  cu.yd & m3/8hr
   Sedimentary Rock 350cu.yd - 268m3 440cu.yd - 337m3 900cu.yd - 688m3  cu.yd & m3/8hr
   Volcanic Rock 200cu.yd - 153m3 275cu.yd - 210m3 600cu.yd - 459m3  cu.yd & m3/8hr

 

 

Demolishing Reinforced & Unreinforced Concrete - manual jack hammer

Task / Description Slow   Ave   Fast    Units
 Concrete Slabs, unreinforced 50-150mm 3.2  -   1.9   hrs/m3
 Concrete Slabs, unreinforced 150-300mm 5.5  4.1  3.7   hrs/m3
 Concrete Slabs, reinforced 50-150mm 5.2  -   3.9   hrs/m3
 Concrete Slabs, reinforced 150-300mm 9.1  6.2  4.7   hrs/m3
 Concrete Walls, unreinforced 4.7  3.9  3.1   hrs/m3
 Concrete Walls, reinforced 5.6  4.7  3.9   hrs/m3
 Concrete Foundations, unreinforced 3.6  3.3  3.0   hrs/m3
 Concrete Foundations, reinforced 5.4  5.1  4.8   hrs/m3
 Concrete Beams 7.5  6.5  5.6   hrs/m3
 Concrete Columns 9.2  8.2  7.3   hrs/m3
 Tarmac paving 20-50mm thick 1.9  1.7  1.5   hrs/m3
 Tarmac paving 50-100mm thick 2.1  -   1.6   hrs/m3
 Tarmac paving 100-150mm thick 2.1  -   1.7   hrs/m3
 Tarmac roadway 150mm thick -   3.6  -    hrs/m3
 Brickwork, walls and columns 2.4  1.8  1.3   hrs/m3
 Brickwork, foundations 2.7  2.1  1.5   hrs/m3

 

Cutting Back Piles & Slabs - manual jack hammer

Task / Description Slow   Ave   Fast    Units
 Concrete Pile Caps, 50-300mm deep and 0.6m dia 0.6  -   0.3   hrs/no
 Concrete Pile Caps, 300-750mm deep and 0.6m dia 1.5  -   0.4   hrs/no
 Concrete Pile Caps, > 750mm deep and 0.6m dia 1.8  -   0.8   hrs/no
 Concrete Pile Caps, 50-300mm deep and 1.1m dia 1.9  -   0.8   hrs/no
 Concrete Pile Caps, 300-750mm deep and 1.1m dia 2.5  -   1.1   hrs/no
 Concrete Pile Caps, > 750mm deep and 1.1m dia 4.2  -   2.3   hrs/no
 Concrete Pile Caps, 50-300mm deep and 2.5m dia 9.2  -   8.2   hrs/no
 Concrete Pile Caps, 300-750mm deep and 2.5m dia 10.1  -   9.5   hrs/no
 Concrete Pile Caps, > 750mm deep and 2.5m dia 11.5  -   10.2   hrs/no
 Concrete, Cutting Slabs, 5-25m deep -   15.2  -    m/hr
 Concrete, Cutting Slabs, 25-50m deep -   11.5  -    m/hr
 Concrete, Cutting Slabs, 50-75m deep -   6.7  -    m/hr
 Concrete, Cutting Holes, coring machine -   0.2  -    m3/hr
 Concrete, Cutting Back to expose couplers 0.7m slab -   2.5  -    m/day

 

 

 

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