SYMPOSIA PAPER Published: 01 January 1983
STP31803S

New Concepts and Discoveries Related to the Strength Characteristics of Plasticized Sulfur

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The objective of this study was to determine the physical reasons for the high-strength characteristics of plasticized sulfur concrete and to define practical manufacturing techniques.

The results of this study reveal some very interesting phenomena. The Vroom process of sulfur plasticization exhibits a very unusual display of ordered angular crystallization. The Bureau of Mines' plasticized sulfur shows a different crystallization pattern consisting of bonded spherical bodies. These crystallization phenomena indicate a logical physical explanation for the superior strength characteristics inherent in plasticized sulfur concretes manufactured by entirely different processes. These new discoveries are revealed by microscopic examinations utilizing both the stereomicroscope and the scanning electron microscope. These unique microscopic phenomena offer to the scientific community a different explanation as to why unusually higher strengths are obtained in plasticized sulfur concretes. Classical chemical and physical concepts concerning properties of plasticized sulfurs are complemented by factual microscopy. Practical methods of manufacturing sulfur concretes have been defined.

Author Information

Gannon, CR
Ashland Petroleum Company, Division of Ashland Oil, Inc., Ashland, Ky
Wombles, RH
Ashland Petroleum Company, Division of Ashland Oil, Inc., Ashland, Ky
Hettinger, WP
Ashland Petroleum Company, Division of Ashland Oil, Inc., Ashland, Ky
Watkins, WD
Ashland Petroleum Company, Division of Ashland Oil, Inc., Ashland, Ky
Price: $25.00
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Details
Developed by Committee: D04
Pages: 84–101
DOI: 10.1520/STP31803S
ISBN-EB: 978-0-8031-4873-4
ISBN-13: 978-0-8031-0257-6