System and apparatus for indicating the air content of...

Details System and apparatus for indicating the air content of... System and apparatus for indicating the air content of...

G - Physics

01

N

73/78

G01N 7/16 (2006.01)

Patent

CA 1131044

T I T L E SYSTEM AND APPARATUS FOR INDICATING THE AIR CONTENT OF CONCRETE IN SITU INVENTOR KARIM W. NASSER ABSTRACT OF THE DISCLOSURE The apparatus comprises a chamber having an open end and an opposite closeable end, and pro- vided with heating means and pressure measuring means. The open end of the chamber is inserted into the fresh con- crete with opposite end opened. After insertion the chamber is closed and the contents heated under predeter- mined conditions. The pressure increase is a function of air content of the mixture.

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