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Water Holding Structures
Chehe River Mine
Guanxi,
China
Xypex products were chosen to rehabilitate these pipes as they resist hydrostatic pressure, chemical attack and are a permanent solution thus avoiding future maintenance intervals and shutdowns. Additionally, they are used on wet concrete so removing the need to dry out the concrete before application. Xypex Patch'n Plug was used to seal active leaks in the pipe joints and Xypex Concentrate was used to provide waterproofing and acid resistance to the pipe sections.
Project Sheet
Project Sheet
PDF
The mine tailing overflow pipes of this mine
are buried at 60 m to 80 m underground, 1.8 m
in diameter and sloped to a 45º angle. Officially
commissioned in 1980s, the joints of
the pipes had been leaking for many years
due to increased load. Additionally the concrete
of the pipes had suffered severe corrosion
and spalling due to acidic attack. In
many areas the reinforcing steel of the concrete
was exposed. Previously these pipes
had been repaired on an annual basis as the
materials used for the repair could not withstand
the water pressure or acid attack.
Xypex products were chosen to rehabilitate these pipes as they resist hydrostatic pressure, chemical attack and are a permanent solution thus avoiding future maintenance intervals and shutdowns. Additionally, they are used on wet concrete so removing the need to dry out the concrete before application. Xypex Patch'n Plug was used to seal active leaks in the pipe joints and Xypex Concentrate was used to provide waterproofing and acid resistance to the pipe sections.
The pipe was inspected 6 months after application and found to be in an excellent condition. As a result, the asset owners chose to rehabilitate other structures using Xypex Crystalline Technology.
Xypex products were chosen to rehabilitate these pipes as they resist hydrostatic pressure, chemical attack and are a permanent solution thus avoiding future maintenance intervals and shutdowns. Additionally, they are used on wet concrete so removing the need to dry out the concrete before application. Xypex Patch'n Plug was used to seal active leaks in the pipe joints and Xypex Concentrate was used to provide waterproofing and acid resistance to the pipe sections.
The pipe was inspected 6 months after application and found to be in an excellent condition. As a result, the asset owners chose to rehabilitate other structures using Xypex Crystalline Technology.
