POTABLE WATER TREATMENT PLANT REPAIR

Problem

Pipelaines For Oxygen Aeration In Wastewater Treatment Plant
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Various problems can affect clean water processing plants ,

Leakage of water from reservoirs through porous concrete , ingress of water into reservoirs ,failure of water retaining waterproofing envelope , leakage of potable water feeder concrete tunnels , soft water eroding the concretes surface

Solution

RESERVOIRS LEAKAGE AND SURFACE DAMAGE BY EROSION AND DISSOLVING


After the removal of unsound concrete and exposure of reinforcement as necessary the following is recommended .

Seal all cracks with a moisture tolerant polyurethane structural resin Contite PUE 300/301 .

Reinforcement protect with Congard ST

Reprofile by spray or hand applied Conpatch 600HS high strength, high build >70N/mm2 polymer modified repair mortar containing a migrating corrosion inhibitor

All leaking joints seal first with Contite G600 oakhum technique then repair with a hypalon strip   Conflex Band 200mm wide 2 mm thickness

All areas spray on Conpatch NCI migrating corrosion inhibitor

Top coat with Contite CFM highly flexible waterproof membrane and crystalline permanent waterproofing which is crack bridging and sealing at 2mm thickness

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Reservoirs 500

 LEAKING CONCRETE WATER TUNNELS


Remove deleterious materials and clean surface

Damaged areas cut back as required  to sound concrete and reinforcement as necessary .

Coat Rebar with Congard ST

Reprofile with Conpatch 600HS high strength >70N/MM2 and high build polymer modified repair mortar containing a corrosion inhibitor

All leaking joints rout out and seal with Contite ACCI dry pack and seal with Conflex band Hypalon strip 200 mm wide 2 mm thick fixed with epoxy

To prevent future water loss or ingress recoat all the surface with Contite CFM a flexible polymer waterproofing system incorporating permanent crystalline waterproofing crack bridging and sealing at 2 mm thickness

อุโมงค์ผันน้ำ
Tunnell Water
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