Accession Number:

AD0445892

Title:

DEVICES FOR MEASURING INTERNAL STRAINS IN HARDENED CONCRETE,

Descriptive Note:

Corporate Author:

NAVAL CIVIL ENGINEERING LAB PORT HUENEME CA

Personal Author(s):

Report Date:

1964-06-29

Pagination or Media Count:

23.0

Abstract:

The results obtained with two McCarthy type electric-resistance strain gages embedded in concrete are described. A study of the technical literature dealing with embeddable devices shows that the following four types are worthy of further investigation the Carlson miniature elastic-wire strain meter, the Baldwin brass-foil-envelope Valore type electric-resistance strain gage, the Tokyo plastic encapsulated electric-resistance strain gage, and the Deakin Phillips Potocki type electro-acoustic strain gage. A laboratory testing program to investigate the comparative performance of the four devices is proposed. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE