Air void structure in hardened concrete is critical to its durability. This project mainly focuses on investigating the air void system in hardened concrete with the microscopic analysis Linear Traverse Method specified by ASTM Specification...
The use of fiber reinforced polymer materials (composite FRP materials) to
strengthen existing concrete structures continues to expand as our current infrastructure
ages. However, one of the concerns when using FRP systems in this manner is...
A Physics doctoral project seeks to reduce the uncertainty of inaccurate visual bridge inspections by producing a remote sensor program to determine and monitor the changes in health of a specified bridge. The Eastern Parkway Bridge was determined...
Two-story building with a wood ramp on the rear. A concrete mixer is pulled up to the building with a second concrete truck nearby. Title supplied by cataloger.
Barges; Boat & ship industry; Howard Ship Yards and Dock Company
Concrete mixer hull on grade at Howard Shipyard. This is one of two concrete mixer hulls built at Howard for the Corps of Engineers that year. One was for the Memphis district and the other was for the Vicksburg district.
Barges; Boat & ship industry; Howard Ship Yards and Dock Company
Concrete mixer hull on grade at Howard Shipyard. This is one of two concrete mixer hulls built at Howard for the Corps of Engineers that year. One was for the Memphis district and the other was for the Vicksburg district.
Barges; Boat & ship industry; Howard Ship Yards and Dock Company
Men work on the hull of a concrete mixer barge on the grade at Howard Shipyard in Port Fulton (now Jeffersonville), Indiana. The concrete mixer is probably the one of two that Howard built for the U.S. Corps of Engineers in 1926.
A round is being framed out for putting in concrete. Sacks of material with the word Speed on them sit along the side of the road and mules pull carts down the road. Further up the road workers operate a machine and shovels. Utility lines frame the...
