Title: The Use of Elastomeric Sealing Devices for Cast-Iron Soil pipe Used in Drain, Waste, and Vent Systems in Concrete Structures

Author(s): William H. Le Van

Publication: Symposium Paper

Volume: 164

Issue:

Appears on pages(s): 45-58

Keywords: gaskets; joints (junctions); pipes (tubes); sealing; plastics, polymers, and resins; Materials Research

DOI: 10.14359/1388

Date: 11/1/1996

Abstract:
Important and often overlooked parts of any building or structure are the systems located behind the walls, under the floors, and in the ceilings of these structures. Installed when the framework of a building is just taking shape, these systems provide the occupants of the building with potable water and remove the waste water safely, quietly, and efficiently. Because these systems are installed within walls, floors, and ceilings, the reliability and longevity of the systems must be equal to the expected life of the building. Two such systems are the sanitary and stormwater piping systems found in all buildings. The wastewater system removes wastewater from the bathrooms, kitchens, and restrooms located inside these structures. The stormwater or rainwater systems drain the exposed roofs, patios, and terraces of rainwater, melted snow, and ice. Both systems use cast iron soil pipe, which is joined with varying types of fittings, within the building's structure. Both systems operate in nonpressure applications, using gravity to remove the rainwater and wastewater from the building. A necessary part of these piping systems is a reliable, cost efficient method of joining the pipe and fittings. This paper traces the history of cast iron soil pipe and discusses design changes in pipe and fittings and the development of applicable standards.