01 / 6 · Practical Engineering
Grout is basically concrete without the large aggregate, mixed with a low viscosity so it flows more easily into gaps.
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And the grout can hide that corrosion, making it difficult to inspect the structure.
One final option is to inject high pressure grout to create an impenetrable curtain below the dam.
Another option is to excavate a deep trench and fill it with grout, concrete, or a slurry of impermeable clay.
The uppermost section of the annular space is permanently sealed, usually with cement grout.
Two of the most common methods of anchoring are a wedge device and pumping in grout.
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