Henry C. Adams

Capitolo 79

station that examines to Lichterfeld Lordo, Berlin nearby, the results
of what you/he/she was tabbed by the Mr. C. Schneider and Teacher Gary.
In these tests the blocks of mortar were done 3 in cube and the
concrete l2 makes impracticable in cube;  they was deposited in two reservoirs,
a fresh water that contains and the other sea-water, so that the
it is probable that effect under the both conditions is noticed. In sum,
concrete blocks were made, it allowed to remain in the damp sand for
three months, and you/he/she had put then in the form of a groyne in
the sea among tall and low-water's mark. Some of the blocks
it was permitted to harden for twelve months in the sand before being
envoy, and these gave the best results that the others. Two
brands of German cement in Portland were used in these tests, one,
from that the best results were gotten, while containing 65.9 for
cent. of cements and the other 62.0 for cent. of cements, together
with a tall percentage of alumina. In this case, also the
sum of silica of the excellently-earth or trass, improved the
the power that withstands to of blocks it did with poor mortars, but it didn't do
has some appreciable effect on the strongest mixtures.

Teacher M. Moller, of Brunswick Germany, brought to the
International association to Examine Material, to the
Congress in first Copenaghen assigned, him the result of his
tests on a small cable, form of trapeze, strengthened concrete
you structure that it was erect in the Sea of the North the inside
being filled with sandy mud from which it would easily be removable
flowing water. The sides were 7 cms. thick, formed of cement
concrete 1:2 1/2:2, shaped elsewhere, and it put in the
you structure forty days after they was done, while the top and
fund is 5 cms. often, and it consisted of concrete 1:3:3,
_in shaped situ_ and it covered from the tide inside twenty-four
times to be staid. The concrete shaped situ_ of hardened _in a
few for before, and then it became soft when the damp, and friable
when dry, and white flowering appeared on the surface. In a
short time the waves broke away this concrete, and exposed the