First-Time Application of Underwater Live Concrete for Economic Retrofitting of Damaged Bridge Piers in Bangladesh

Table 3

Cost analysis of underwater concreting method.

Arial Kha Bridge
Pile surface repairing cost at Pier 7
Si. no.	Item	Unit	Amount
1	Direct cost
a.	Material cost
1	MASTERFLOW 870	Bag	50.00
2	Cement	Bag	450.00
3	Coarse sand	cft	714.00
4	Stone	t	67.00
5	10 mm rebar	t	2.50
6	6 mm rebar	t	1.00
7	Admixture	kg	900.00
8	Grouting cement	kg	700.00
b.	Equipment cost
1	Concrete mixer mMachine	Nos	1.00
2	Boat	Nos	4.00
3	Generator	Nos	3.00
4	Formwork	kg	3360.00
5	Fuel for the equipment	Liter	750.00
6	Other related equipment	Nos
c.	Manpower
1	Chinese technical person	Person	2.00
2	Engineer	Person	2.00
3	Water diver	Person	7.00
4	Skilled labor	Person	6.00
5	Unskilled labor	Person	10.00
6	Subtotal (a + b + c)		7,029.50
2	Overhead cost		4,381,976.00
	Total (1 + 2)		4,389,005.50