CORROSION RESEARCH ROUND‐UP Available to Purchase

U.S.A. Strength of structural plastics. Evidence is presented to show that glass reinforced plastics undergo substantial reductions in strength when exposed to water. Emphasis is placed on the importance of determining the total loss of strength by creep measurements in the environment and at the temperature of interest. Results from such measurements are much more revealing than the commonly used method of short‐term immersion followed by rapid ultimate strength measurements in air. Convenient methods are described for obtaining comparative creep strength data for resins, for flat laminates and for pipe sections. Results obtained from these methods are used to indicate the most important factors which determine the wet strength of resin and of glass reinforced resin.—(W. H. Sharp and M. K. Weber, Corrosion, 1956, 12 (2), 27–34.)