Performance Studies on Sulfur Jointing Compounds

Results of Research on Sulfur Jointing Compounds

“…showed that Thiobacillus thiooxidans would not attack sulfur cements containing small amounts of bactericides such as sodium silicofluoride. The for-mula developed in the authors' laboratory (the "Atlas" formula) and mad e available to all manufacturers of sulfur cements contains this ingredient (13 ).…”

“…Extensive investigations with SR-4 strain gages have shown plasticized sulfur compound joints to be strain free (13), but, in spite of the soundness of the techniques used, such measurements are not well understood by all water works engineers. Simpler ways to show that plasticized sulfur compound pipe joints are strain free have been found (16 ) , although these methods are not completely conclusive.…”

“…Simpler ways to show that plasticized sulfur compound pipe joints are strain free have been found (16 ) , although these methods are not completely conclusive. It March 1954 SULFUR JOINTING COMPOUNDS 239 was, therefore, necessary to develop conclusive strain tests as readily understandable as those which show that salt-free plasticized sulfur joints do not disintegrate or contribute to the corrosion of cast-iron pipe (6,13).…”

Plastics

“…Tentative specifications for plasticized sulfur compositions have been proposed (4) and the effect of composition on various properties of plasticized sulfur cements has been investigated (63,166).…”

“…Rigid polyvinyl chloride pipe may be threaded and connected with appropriate molded fittings or joined with adhesives or by welding (106, 121,158). Considerable information has also been published on physical and chemical properties and uses of rigid polyvinyl chloride structures (13, 30, 166,164,166,172). Considerable information has also been published on physical and chemical properties and uses of rigid polyvinyl chloride structures (13, 30, 166,164,166,172).…”