This section is from the book "Notes On Building Construction", by Henry Fidler. Also available from Amazon: Notes on building construction.
The following results are from Mr. Kirkaldy's experiments with 6-inch cubes :-
Scotgate ... | 5.1 |
Brarnley Fall .... | 1.8 |
Derbyshire do... | 2.6 |
Craigleith.. | 5.4 |
Red Corsehill ... | 3.5 |
Cunliffe ... | 4.7 |
Leigh Carr.. | 7.2 |
Stone. | Crushing Weight per Square Inch in Tons. |
Quarella (white).. | 3.8 |
Do. (green).. | 3.0 |
Grinshill.. | 2.3 |
Wilderness (red).. | 3.3 |
Hopton Wood... | 5.6 |
Spinkwell1 . . . | 6.0 |
 
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