lanchkhuti city / lashis gele rc tank (500m3)
TRANSCRIPT
![Page 1: Lanchkhuti City / Lashis Gele RC Tank (500m3)](https://reader033.vdocuments.us/reader033/viewer/2022042716/55bb06b9bb61eb81638b456e/html5/thumbnails/1.jpg)
Lashis-Gele RC Tank (500m3)
Part of Lanchkhuti City Water Supply System
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Existing RC Tank Status
Originally planned repairs of existing RC Tank by cleaning or plaster and ironing of walls & roof slab - not implemented due to deteriorated condition of the Tank. Photo: Lack of concrete cover for roof slab re-bars caused corrosion & disconnection leaving the re-bars to hang from the Columns.
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Existing RC Tank Status
Multiple leakages recorded, previous repair attempts by plastering of surface not successful.
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During the original construction of existing Tank – 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.
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Planned Construction Method
Existing Tank shell to be used for construction of new RC Tank
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Preparation for Demolition Works
Soil Cover (30cm) & remaining hydro-insulation removal
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Existing RC Tank – Roof Slab Demolition
To enable entry for construction of new RC Tank
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Existing RC Tank – Roof Slab Demolition
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Existing RC Tank Shell – Roof Slab Demolition
Removal of debris
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Existing Tank Shell
Leakages mostly present on construction joints between wall’s horizontal segments. Originally – no water stop was used between wall’s segments during concrete pouring
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Existing RC Tank Shell – sealing of leakages
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RC Tank - New Outlet Piping
Pipeline supporting structures in erection
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RC Tank - Outlet Structures
-Shutter Chamber; -Manual Valve – CL meter Shaft; -Ultra-sonic Flow Meter Shaft
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New RC Tank – Base Slab Reinforcing
Works
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New RC Tank – Base Slab Concrete
Installation
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Quality Control – Slump Test
Slump test on each mix-truck concrete delivery as standard concrete workability control.
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Quality Control – Concrete Temperature
Control
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Quality Control – Concrete Molds
Compressive Strength Test molds for each structural concrete installation.
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New RC Tank – Wall Reinforcement Works
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New RC Tank Wall Reinforcement /
Formworks
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New RC Tank Wall Formworks
Right upper corner – new Double Bunker Type CL gas Chlorinator Building construction on Tank’s inlet section.
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New RC Tank Wall Formworks
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New RC Tank Wall Concrete Pouring
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Shutter Chamber and Outlet Pipelines
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New RC Tank – Columns Formwork
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New RC Tank – Columns Formwork
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New RC Tank – Roof Slab Formwork
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New RC Tank – Roof Slab Formwork
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New RC Tank – Roof Slab Reinforcing
Works
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New RC Tank – Hydro Insulation
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New RC Tank – Hydro Insulation
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New RC Tank – Interior
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New RC Tank – Interior
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New RC Tank – Interior
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New RC Tank – Interior
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New RC Tank – Interior
![Page 37: Lanchkhuti City / Lashis Gele RC Tank (500m3)](https://reader033.vdocuments.us/reader033/viewer/2022042716/55bb06b9bb61eb81638b456e/html5/thumbnails/37.jpg)
New RC Tank – Interior
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New RC Tank – Final Status
Ventilation Pipes, Access Manholes, Light Posts installed. Right - Chlorine Gas Chlorination Building (Double Bunker Type).
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New RC Tank – Final Status