Supervision of Water Supply Systems Rehabilitation Works in 17 (21) Towns of Georgia under WIMP (EIB/WIMP/C/QCBS/03),

1. Oragvis-Gele RCTank
Construction
(1,900m3)
A part of Lanchkhuti City
Water Supply System

2. MULTIPLE LEAKAGES RECORDED, PREVIOUS REPAIR
ATTEMPTS BY PLASTERING OF SURFACE NOT SUCCESSFUL.
ORIGINALLY PLANNED REPAIRS OF EXISTING RC TANK BY
CLEANING OF PLASTER AND IRONING OF WALLS & ROOF
SLAB - NOT IMPLEMENTED DUE TO DETERIORATED
CONDITION OF THE TANK.

3. Existing RCTank
Status
During the original
construction of existingTank –
concrete cover has not been
provided for roof slab re-bars,
instead – plaster was applied,
which has falling off
repeatedly. High moisture
environment caused severe
corrosion of steel
reinforcement.

4. PlannedConstruction
Method
ExistingTank shell to be used
for construction of new RC
Tank;
-Horizontal PVCWater Stop
between wall kickers in base
slab & wall segments;
--Vertical PVCWater Stop
between 4nrWall segments

5. SOIL COVER (30CM) & REMAINING HYDRO-INSULATION
REMOVAL

6. TO ENABLE ENTRY FOR CONSTRUCTION OF NEW RC TANK

10. EXISTING TANK BASE SLAB PREPARED FOR
REINFORCEMENT
NEW RC TANK – BASE SLAB REINFORCING WORKS

11. SURVEY CONTROL
COLUMN PLINTHS FORMWORK, PVC WATER-STOP
INSTALLATION

13. HORIZONTAL PVC WATER STOP IN BASE SLAB’S WALL
KICKER

16. HORIZONTAL / VERTICAL WATER STOP FOR
CONSTRUCTION JOINTS

17. VISIBLE VERTICAL PVC WATER STOPS FOR WALL’S
SEGMENTS JOINTS
VISIBLE VERTICAL PVC WATER STOPS FOR WALL’S
SEGMENTS JOINTS

19. VERTICAL PVC WATER STOP ON CONSTRUCTION JOINT

31. ROOF SLAB’S REINFORCEMENT CONCRETE INSTALLATION

32. CONCRETE POURING CONCRETE CURING

33. CONCRETE CURING (7 DAYS)
SEALING BETWEEN EXISTING RESERVOIR WALL AND NEW
RESERVOIR BASE SLAB BY SILICONE FOAM

34. RESERVOIR’S INTERIOR’S REPAIRS, CLEANING
RESERVOIR BACKFILLING AFTER APPLIED HYDRO-
INSULATION

35. RCTank’s Final Status