Compressive strength and outgassing characteristics of concrete for large vacuum-system construction

Concrete enclosures can be used for vacuum‐system construction. However, limited information exists on the behavior of concrete in vacuum. For this reason, concrete testing was performed recently at the Los Alamos National Laboratory to obtain data on outgassing and compressive strength of concrete in vacuum. The results of the experimental program will be presented to support the major conclusion that concrete is suitable for high‐vacuum systems without degradation of strength and should be considered for large vacuum‐system construction.