Table 6 Cost analysis of flexible pavement for various mixes.

From: Sustainable subgrade improvement with calcium carbide residue and rice husk ash

S. No.

Material combinations

 

Top Width (m)

Bottom width (m)

Height (m)

Volume (m3)

Rate per m3 (INR)

Cost (INR)

Overall Cost (INR)

Saving in Cost (INR LACS)

1

BCS::100

Bituminous Course

3.75

3.91

0.04

153.2

30,400

4,657,280

33,274,130

NA

DBM Course

3.91

4.47

0.14

586.6

18,000

10,558,800

Granular Base

4.47

5.47

0.25

1242.5

7100

8,821,750

Granular Sub Base

5.47

6.27

0.2

1174

5700

6,691,800

Subgrade (BCS::100)

6.27

8.27

0.5

3635

700

2,544,500

S. No.

Material combinations

 

Top Width (m)

Bottom width (m)

Height (m)

Volume (m3)

Rate per m3 (INR)

Cost (INR)

Overall Cost (INR)

Saving in Cost (INR LACS)

2

BCS: CCR::90:10

Bituminous Course

3.75

3.91

0.04

153.2

30,400

4,657,280

30,257,830

3,016,300

DBM Course

3.91

4.35

0.11

454.3

18,000

8,177,400

WBM Course

4.35

5.35

0.25

1212.5

7100

8,608,750

Sub-base Course

5.35

6.15

0.2

1150

5700

6,555,000

Subgrade (BCS: CCR::90:10)

6.15

8.15

0.5

3575

650

2,323,750

BCS:90

-

-

-

3217.5

700

2,252,250

CCR:10

-

-

-

357.5

20

7150

S. No.

Material combinations

 

Top Width (m)

Bottom width (m)

Height (m)

Volume (m3)

Rate per m3 (INR)

Cost (INR)

Overall Cost (INR)

Saving in Cost (INR LACS)

3

BCS: CCR: RHA::75:10:15

Bituminous Course

3.75

3.91

0.04

153.2

30,400

4,657,280

28985156.25

4288973.75

DBM Course

3.91

4.31

0.1

411

18,000

7,398,000

WBM Course

4.31

5.31

0.25

1202.5

7100

8,537,750

Sub-base Course

5.31

6.11

0.2

1142

5700

6,509,400

Subgrade (BCS: CCR: RHA::75:10:15)

6.11

8.11

0.5

3555

665

2,364,075

BCS:75

-

-

-

2666.25

700

1,866,375

CCR:10

-

-

-

355.5

20

7110

RHA:15

   

533.25

15

7998.75