Investigation of Sprayable Anaerobic Sealants for Internally Sealing Cast IronJoints in Gas Distribution Mains. Topical Report, November 1, 1991-July 31, 1994

摘要

This is a Topical Report covering a portion of the overall research program. Theeffort reported includes engineering, laboratory and field experiments to evaluate the performance of sprayable anaerobic sealants used to internally seal leaking cast iron joints in gas distribution mains, and to find or develop improved sprayable materials usable with the baseline system. Full-scale laboratory and field trial results are reported, including long-term leak reduction data after spraying the joints. Also included are laboratory tests measuring the physical properties (viscosity, wicking, surface tension) of nine sprayable sealants at three temperatures.