Durability of plastics in anaerobic marine sediments durabilityofplas00mura Year: 1975 Figure 8. Specimens of Manila hemp ropes exposed in harbor mud 1 year. There were no significant differences in the hardness or tensile strength of specimens of plastic sheeting exposed for 2-1/2 years in the anaerobic bottom sediments, in the aerobic near-surface waters, or in the laboratory (Table 1). Ropes Although synthetic fiber ropes changed somewhat in color after an exposure of 2-1/2 years in the ocean, they were weakened only slightly, if at all. Table 2 indicates that the ropes exposed in the h
Durability of plastics in anaerobic marine sediments durabilityofplas00mura Year: 1975 Figure 8. Specimens of Manila hemp ropes exposed in harbor mud 1 year. There were no significant differences in the hardness or tensile strength of specimens of plastic sheeting exposed for 2-1/2 years in the anaerobic bottom sediments, in the aerobic near-surface waters, or in the laboratory (Table 1). Ropes Although synthetic fiber ropes changed somewhat in color after an exposure of 2-1/2 years in the ocean, they were weakened only slightly, if at all. Table 2 indicates that the ropes exposed in the harbor mud may have been a little weaker than unexposed ropes or those that were exposed in aerobic near-surface waters. In view of the small numbers of specimens tested, however, the differences were too small to be significant, Electrical Cables No physical tests were performed on the sections of insulated electrical cable (Figures 9 and 10). Microscopic examination of the outer covers of the cables disclosed that the natural rubber covers underwent surface deterioration. The small brackets holding the cable sections to the panels protected the surface of the underlying rubber. 10
Size: 2913px × 687px
Photo credit: © Bookend / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: archive, book, drawing, historical, history, illustration, image, page, picture, print, reference, vintage
