----+------+--------------+----+----+-------+-----+-------+----------
| | | | | | LOAD. |
| | |Age |Area|Density+-----+-------+
| | | in | in | lbs. | |in tons|
| | Dimensions |days|sq. | per | in | per |
No. |Marks.| in inches. | * |ft. |c. ft. |tons |sq. ft.| REMARKS.
----+------+--------------+----+----+-------+-----+-------+----------
UT1 | 3 | 9x9x9 | 1 |.562| 131 |0.70 | 1.66 |Cracked
| | | | | |1.04 | 2.47 |Collapsed
| | | | | | | |
UT2 | 1 | 8.9x8.9x8.9 | 9 |.550| 125 |4.27 | 10.50 |Collapsed
| | | | | | | |
UT3 | 2 |8.95x8.95x8.95|16 |.556| 117 |2.31 | 5.57 |Small
| | | | | |4.23 | 10.20 | cracks
| | | | | | | | appeared
----+------+--------------+----+----+-------+-----+-------+----------
[*: Age after arrival at laboratory.]
"Second set of blocks sent in December 1919.
"This set consisted of six blocks in three pairs, each pair having been
rammed with a different quantity of water.
"One of each pair was tested within twenty-four hours of arrival at the
laboratory, and the others after drying in the laboratory for twenty-six
days.
"The material used was not homogeneous, and the mixture consisted of a
very clayey loam, a fibrous loam, sand and large stones. The clayey
material gave rise to surface cracks as the blocks dried.
"For results of tests see Table II.