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Inspecting The Moisture Of Lining Concrete (Construction methods and Long Lake dam) Item Info

Columbia Basin Project, Irrigation Division, Long Lake Dam. Assistant Resident Engineer, Donald B. McLaren checking fill moisture by the use of a proctor plasticity penetrometer. Representative material from the spread and processed lift is obtained, given standard laboratory compaction and resistance to penetration of a needle of definite end area is measured. A resistance to penetration range from 1000 to 2000 pounds per square inch indicates that the material contains the proper moisture for compaction. A needle reading less than 1000 pounds per square inch indicates that material is too wet and must be dried out by processing or mixing with drier material. A needle reading greater than 2000 pounds per square inch indicates that the material is too dry and moisture must be added. Harold Foss, photographer.
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Title:
Inspecting The Moisture Of Lining Concrete (Construction methods and Long Lake dam)
Creator:
Foss, H.E.
Date Created:
1948-05-24
Description:
Columbia Basin Project, Irrigation Division, Long Lake Dam. Assistant Resident Engineer, Donald B. McLaren checking fill moisture by the use of a proctor plasticity penetrometer. Representative material from the spread and processed lift is obtained, given standard laboratory compaction and resistance to penetration of a needle of definite end area is measured. A resistance to penetration range from 1000 to 2000 pounds per square inch indicates that the material contains the proper moisture for compaction. A needle reading less than 1000 pounds per square inch indicates that material is too wet and must be dried out by processing or mixing with drier material. A needle reading greater than 2000 pounds per square inch indicates that the material is too dry and moisture must be added. Harold Foss, photographer.
Subjects:
canal construction workers construction methods and Long Lake dam
Location:
Washington (State) Stevens County Tumtum
Latitude:
47.837201
Longitude:
-117.839401
Publisher:
University of Idaho Library Digital Initiatives, http://www.lib.uidaho.edu/digital/
Source:
Army Corps of Engineers Dam Construction photographs, 1933-1965, PG 94, University of Idaho Library Special Collections and Archives
Finding Aid:
https://archiveswest.orbiscascade.org/ark:80444/xv165618
Source Identifier:
94-4-1658
Type:
Image;StillImage
Format:
image/jpeg

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Source
Preferred Citation:
"Inspecting The Moisture Of Lining Concrete (Construction methods and Long Lake dam)", Columbia River Basin Project: Dam Construction in the Pacific Northwest, University of Idaho Library Digital Collections, https://www.lib.uidaho.edu/digital/crbp/items/crbp922.html
Rights
Rights:
In copyright, educational use permitted. Educational use includes non-commercial reproduction of text and images in materials for teaching and research purposes. For other contexts beyond fair use, including digital reproduction, please contact the University of Idaho Library Special Collections and Archives Department at [libspec@uidaho.edu](mailto:libspec@uidaho.edu). The University of Idaho Library is not liable for any violations of the law by users.
Standardized Rights:
http://rightsstatements.org/vocab/InC-EDU/1.0/
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