Lining of pipelines and passageways

Details Lining of pipelines and passageways Lining of pipelines and passageways

1981-09-30

1983-08-30

Hoffman, James R.

Coating processes

Interior of hollow article coating

Spraying

156242, 427146, 427238, B05D 722, B05D 102, B05D 312

Patent

active

044016964

ABSTRACT:
A method of lining a passageway, such as an undergound sewer is disclosed. A fluent but thixotropic cementitious composition is sprayed onto the surface of the passageway, to form a lining of predetermined thickness and before the material has had time to flow to change its distribution on the surface, a flexible tube is everted onto the applied material, holding it in position until it is sufficiently cured.

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