A By Mix in Place Method
Construction of granular sub-base by providing well graded material / Close graded material, spreading in uniform layers with motor grader on prepared surface, mixing by mix in place method with rotavator at OMC, and compacting with smooth wheel roller 80-100 kN / Vibratory Roller to achieve the desired density, complete as per Technical Specification Clause 401 MORD / MORTH.
i For Grading I Material (CBR Value minimum 30)
Unit = cum
Taking output = 300 cum a) Labour
Mate day -
Mazdoor (Skilled) day 2.48
Mazdoor (Unskilled) day 10.00
b) Machinery
Motor Grader 110 HP @ 50 cum per hour hour 6.00 Three wheel 80-100 kN static roller @ 10 cum per hour hour 30.00
OR
vibratory roller 80-100 kN hour 6.00
Tractor with Rotavator 25 cum per hour hour 12.00
Water tanker 6 kl capacity hour 3.00
c) Material
Well graded / Close Graded granular sub-base material as per Table 400.1
53 mm to 9.5 mm @ 50 per cent cum 192.00
9.5 mm to 2.36 mm @ 20 per cent cum 77.00
2.36 mm below @ 30 per cent cum 115.00
Water kl 18.00
d&e) Overheads & Contractors Profit
Cost for 300cum = a+b+c+d+e (3 Wheel Roller) Rate per cum = (a+b+c+d+e)/300
Cost for 300 cum = a+b+c+d+e (Vibratory Roller) Rate per cum = (a+b+c+d+e)/300
ii For Grading II Material(CBR Value minimum 25)
Unit = cum
Taking output = 300 cum a) Labour
Mate day -
Mazdoor (Skilled) day 2.48
Mazdoor (Unskilled) day 10.00
b) Machinery
Motor Grader 110 HP @ 50 cum per hour hour 6.00 Three wheel 80-100 kN static roller @ 10 cum per hour hour 30.00
OR
vibratory roller 80-100 kN hour 6.00
Tractor with Rotavator 25 cum per hour hour 12.00
Water tanker 6 kl capacity hour 3.00
c) Material
Well graded/ Close Graded granular sub-base material as per Table 400.1
26.5 mm to 9.5 mm @ 35 per cent cum 134.00
9.5 mm to 2.36 mm @ 25 per cent cum 96.00
2.36 mm below @ 40 per cent cum 153.00
Water kl 18.00
d&e) Overheads & Contractors Profit
Cost for 300cum = a+b+c+d+e (3 Wheel Roller) Rate per cum = (a+b+c+d+e)/300
Cost for 300 cum = a+b+c+d+e (Vibratory Roller) Rate per cum = (a+b+c+d+e)/300
Andhra Pradesh Standard Data
I. Roads and Bridges
Chapter - 4
GRANULAR SUB-BASES, BASES (NON-BITUMINOUS) AND SHOULDERS
S. No 1
RBR-SBBS
Index-code Description Unit Quantity Rate
Rs. Amount Rs. Remarks 2 3 4 5 6 7 S. No 1
iii For Grading III Material(CBR Value minimum 20)
Unit = cum
Taking output = 300 cum a) Labour
Mate day -
Mazdoor (Skilled) day 2.40
Mazdoor (Unskilled) day 8.00
b) Machinery
Motor Grader 110 HP @ 50 cum per hour hour 6.00 Three wheel 80-100 kN static roller @ 10 cum per hour hour 30.00
OR
vibratory roller 80-100 kN hour 6.00
Tractor with Rotavator 25 cum per hour hour 12.00
Water tanker 6 kl capacity hour 3.00
c) Material
Well graded/ Close Graded granular sub-base material as per Table 400.1
9.5 mm to 4.75 mm @ 66 per cent cum 255.00
2.36 mm below @ 34 per cent cum 129.00
Or
9.5 mm to 4.75 mm @ 35 per cent cum 134.40
4.75 mm to 2.36 mm @ 12.5 per cent cum 48.00
2.36 mm below @ 52.5 per cent cum 201.60
Water kl 18.00
Total d&e) Overheads & Contractors Profit
Cost for 300cum = a+b+c+d+e (3 Wheel Roller) Rate per cum = (a+b+c+d+e)/300
Cost for 300 cum = a+b+c+d+e (Vibratory Roller)
Rate per cum = (a+b+c+d+e)/300
B Plant Mix Method
(i) Construction of granular sub-base by providing well graded /
Close Graded material, mixing in a mechanical mix plant at OMC, carriage of mixed material to work site upto lead of 1000 m spreading in uniform layers with motor grader on prepared surface and compacting with smooth wheel roller 80-100 kN to achieve the desired density, complete as per Technical Specification Clause 401
i For Grading I Material ( CBR Value minimum 30) Unit = cum
Taking output = 225 cum (450 t) a) Labour
Mate day -
Mazdoor (Skilled) day 2.40
Mazdoor (Unskilled) day 8.00
b) Machinery
Wet mix plant @ 60 /75 t capacity per hour hour 7.50 Water tanker 6 kl capacity 5 km lead with one trip per hour hour 4.00
Front end loader 0.9 cum / 1 cum bucket capacity 37.5 cum per hour
hour 6.00
Tipper 5.5 cum @ 3 trips per hour hour 13.60
Motor grader 110 HP @ 50 cum per hour hour 4.50 Three wheel 80-100 kN static roller 10 cum per hour hour 22.50
OR
vibratory roller 80-100 kN hour 6.00
c) Material
Well graded/ Close Graded granular sub-base material as per Table 400.1
53 mm to 9.5 mm @ 50 per cent cum 144.00
9.5 mm to 2.36 mm @ 20 per cent cum 57.00
2.36 mm below @ 30 per cent cum 86.40
Water kl 24.00
d&e) Overheads & Contractors Profit
Cost for 225 cum = a+b+c+d+e (3 Wheel Roller) Rate per cum = (a+b+c+d+e)/225
Cost for 225 cum = a+b+c+d+e (Vibratory Roller) Rate per cum = (a+b+c+d+e)/225
Index-code Description Unit Quantity Rate Rs. Amount Rs. Remarks 2 3 4 5 6 7 S. No 1
ii For Grading II Material (CBR Value minimum 25)
Unit = cum
Taking output = 225 cum (450 t) a) Labour
Mate day -
Mazdoor (Skilled) day 2.40
Mazdoor (Unskilled) day 8.00
b) Machinery
Wet mix plant @ 75 t capacity per hour hour 7.50 Water tanker 6 kl capacity 5 km lead with one trip per hour hour 4.00
Front end loader 0.9 cum bucket capacity 37.5 cum per hour hour 6.00
Tipper 5.5 cum, 3 trips per hour hour 13.60
Motor grader 110 HP @ 50 cum per hour hour 4.50
Three wheel 80-100 kN static roller 10 cum output hour 22.50
OR
vibratory roller 80-100 kN hour 6.00
c) Material
Well graded / Close Graded granular sub-base material as per Table 400.1
26.5 mm to 9.5 mm @ 35 per cent cum 100.80
9.5 mm to 2.36 mm @ 25 per cent cum 72.00
2.36 mm below @ 40 per cent cum 115.20
Water kl 24.00
d&e) Overheads & Contractors Profit
Cost for 225 cum = a+b+c+d+e (3 Wheel Roller)
Rate per cum = (a+b+c+d+e)/225
Cost for 225 cum = a+b+c+d+e (Vibratory Roller) Rate per cum = (a+b+c+d+e)/225
iii For Grading III Material(CBR Value minimum 20)
Unit = cum
Taking output = 225 cum (450 t) a) Labour
Mate day -
Mazdoor (Skilled) day 2.40
Mazdoor (Unskilled) day 8.00
b) Machinery
Wet mix plant @ 60 t capacity per hour hour 7.50 Water tanker 6 kl capacity 5 km lead with one trip per hour hour 4.00
Front end loader 0.9 cum bucket capacity 37.5 cum per hour hour 6.00
Tipper 5.5 cum, 3 trips per hour hour 13.60
Motor grader 110 HP @ 50 cum per hour hour 4.50
Three wheel 80-100 kN static roller 10 cum output hour 22.50
OR
vibratory roller 80-100 kN hour 6.00
c) Material
Well graded / Close Graded granular sub-base material as per Table 400.1
9.5 mm to 4.75 mm @ 35 per cent cum 100.80
4.75 mm to 2.36 mm @ 12.5 per cent cum 36.00
2.36 mm below @ 52.5 per cent cum 151.20
Water kl 24.00
d&e) Overheads & Contractors Profit
Cost for 225 cum = a+b+c+d+e (3 Wheel Roller) Rate per cum = (a+b+c+d+e)/225
Cost for 225 cum = a+b+c+d+e (Vibratory Roller) Rate per cum = (a+b+c+d+e)/225