Package-4, Civil Works for cleaning, repair and restoration work of HRT (Adit-1 to Adit-3) of Teesta-V Power Station, Sikkim.

Amount

1) Dewatering during Construction

1.1) Dewatering in HRT (fixed rate item )

2) Common excavation

2.1) Silt removal from HRT from Adit 1 to Adit 3 from existing gates by suitable size equipments /machineries and other mechanised means

3) Drilling ,Grouting and Pressure relief holes

3.1) Consolidation grouting

3.1.1) Drillling of grout holes 45 mm dia.

3.1.2) Grouting operations in single stages excluding cement

3.2) Contact Grouting as ordered by engineer-in-charge

4) Grouting materials

4.1) Cement

4.3) Bentonite

4.4) Admixures

5) Two Components polyurethane(PU) Grout

6) Concrete

6.1) M25A40 including formwork

6.2) Providing and applying Epoxy mortar for HRT repair works conforming to TS

6.3) Providing and applying high performance cementitious mortar in HRT complying with EN 1504-3 (R4)

7) Cement variation in Concrete (fixed rate item)

8) Admixtures for concrete

8.1) Air entraining agent

8.2) Superplasticizers

9) Reinforcing steel

9.1) Deformed reinforcing bars