1960 house - "shale block" info
1960 house - "shale block" info
(OP)
I am working on a house from 1960 and the original drawings call for "shale block". I assume this is lightweight CMU - does anybody have some original literature they can share, or suggested design values? Google has failed me.
cheers.
cheers.





RE: 1960 house - "shale block" info
The expanded aggregates (shale, slate, clay) are are produced by firing to achieve expansion and better thermal and fire resistance properties, while maintaining the necessary strength.
Engineer and international traveler interested in construction techniques, problems and proper design.
RE: 1960 house - "shale block" info
RE: 1960 house - "shale block" info
RE: 1960 house - "shale block" info
Many old and not now readily available concrete block were made from cinders that were a by-product of uncontrolled burning coal (trains, mills. etc.) were waste materials in the long gone past (cinder block).
The spherical uncrushed aggregates are very strong and durable and have been used on highway bridges because of the lower weight and strength'
Dick
Engineer and international traveler interested in construction techniques, problems and proper design.