Henry C. Adams

Capitolo 82

amount of the salinity in the water. Sand and it gravels from the
you run aground, even if dry, has their surfaces covered with salty
you argue that delay also the setting of the cement when
fresh water is used, as they is mixed with such water, and
this way you permeate the whole mass. If maritime water and it admits from
the beach is used, care must be takes to be seen that anybody decaying
sea alga or the other organic matter it is mixed with him as every this way
piece will provoke a weak place in the concrete. If clay, clay,
or the other earthy matters from the cliffs are fallen above down to
the beach, the pebble is had to wash before it is used in
concrete.

Exposure to dampen air, as it is inevitable on the coast,
notably it delays the setting of cement, so that it is
desirable that should not subsequently be delayed from the
chalk sum or sulfate of kick, especially if it is
is used with water of sea or it sand-blasts sea-wash and gravel. The
chalk percentage gimmick in cement is, however, generally
notably under the maximum one allowed by the British Standard
Specification, viz., 2 for cent., and it is so small that, for
practical purposes, ago the very small difference in sea
coast job, even if clearly, inside reasonable limits, the
more express the cement puts the best. When cement is used
united sewers of pipe of hard porcelains near the coast, check has to be
constituted this delay of the setting and some inside
tests of water that can be specified for being applied don't have to be
fact until a longer period has passed after the laying of the
you coo that would be necessary otherwise. A tall proportion of
alumina has the tendency to provoke the disintegration when exposed to sea
water. The most appreciable change in which a good person happens
cement of sound after exposure to the sea is an increase in the
chlorides, while a disdains increase in the magnesia and the
sulfates also take place, so that the sulfates proportion
and magnesia in the cement should be kept enough low. Hydraulic
you quickly cement statement to the sea it loses the cements and he/she takes on