Civil · C-5Q38N

Concrete Encasement

Materials

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A concrete encasement surrounds an underground pipe, maintaining a six-inch minimum clearance from the pipe outside diameter on all sides. The assembly is reinforced with eight continuous number five longitudinal bars and number three U-bars spaced at one foot six inches on center. Concrete is placed directly against undisturbed earth, forms, sheet piling, or other trench supports as required. When the pipeline is protected with polyethylene tube encasement, the concrete encasement covers the polyethylene layer.

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