File:FMIB 49891 Concrete cylinders, Pier 28, San Francisco Disintegration of concrete due to poor workmanship and improper tamping These.jpeg
FMIB_49891_Concrete_cylinders,_Pier_28,_San_Francisco_Disintegration_of_concrete_due_to_poor_workmanship_and_improper_tamping_These.jpeg (701 × 482 pixels, file size: 123 KB, MIME type: image/jpeg)