Henry C. Adams
Capitolo 74
expressed in terms of the complex it combines that you/he/she is found:--
Silicate of sodium (Na2SiO3)........ 3.43 for cent.
Sulfate of kick (CaSO4)......... 2.45 "
Silicate of Dicalcium (Ca2SiO4).... 61.89 "
Dicalcium alumina (Ca2Al2O5).. 12.14 "
Strong of Dicalcium (Ca2Fe2O5)..... 4.35 "
Oxide of magnesium (MgO)............ 0.97 "
Oxide of kick (CaO)............. 14.22 "
Loss on analysis, & the c............. 0.55 "
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100.00
The Dr. W. Michaelis, the expert of German cement gave a lot
the consideration to this matter in 1906, and it formed the opinion
what the free ones cement in the cement in Portland, or the cements freed in
hardening, it combines with the sulphuric acid of the sea-water,
what causes the mortar or it cements to expand, while resulting in his
destruction. He proposed to neutralize this action adding to
the materials of rich mortar in silica as trass that it is able
you combine with the cements.
The Mr. J. M. O'Hara, of the Laboratory Pacific and Southern the San
Francisco, Cal., it made a series of tests with set of he/she caresses 4 in
diameter and 1/2 in often to the centre, tapering to a thin
you sharpen on the circumference, and also with briquettes for
verifying the resistance to the traction all of what you/he/she had put
in water twenty-four hours later to have mixed. For first some of the
he/she caresses it was absorbed in a solution" of "sea-water's five-strength
having a chemical analysis as follows:--
Chloride of sodium.................... 11.5 for cent.
Chloride of magnesium................. 1.4 " "
Sulfate of magnesium................. 0.9 " "
Sulfate of kick................... 0.6 " "
Water.............................. 85.6 " "
100.0
This strong solution had a job in order that the probable one
effect to dip the cement is probable that in sea-water both
verified a lot of more express that could be done observing
exemplary indeed they put in sea-water to the agenda, and it is worthy