Henry C. Adams

Capitolo 80

reinforcement that rusted and it disappeared, with the result
what in less than four holes of years you/they were made rights through the
concrete. The sides that were formed of plates allowed
hardens before having put in the structure, it was not influences subject
apart a disdains making some surface rough after having been
alternatively shown to the sea and it airs for one period, of
thirteen years. Teacher Moller also referred to many cases
what you/he/she had come to his/her notice under where it cements mortar or concrete
become soft and it showed white flowering when you/he/she had been
shortly brought contact with sea-water after being done.

In experiments in Atlantic exemplary Urban of dry cement in dust
form had put with sea-water in a vase that was quickly
rotated for some time after the cement and the sea-
water was analyzed, and it was found that sea-water had
taken on the cements by the cement, and the cement had absorbed
the magnesia salts from the sea-water.

Some tests were performed in 1908-9 to the military Marina Puts in enclosure,
Charlestown, Mass., from the Aberthaw Construction Company of
Boston, in conjunction with the Marina military Department. The cement
concrete had put so that the lowest portions of the surfaces
of the champions it was under water, the superior portions always
you/he/she had always shown to the air, and the middle portions were
alternatively shown to each. Even if the champions were
shown to many months of cold in winter as to the
heat in the summer, any change was visible in some part of the
concrete at the end of six months.

Mons. R. Feret, Head of the Laboratory of Bridges and Roads,
Boulogne-sur-Mer, France has given expression to the following
opinions:--

1. Any cement or the other hydraulic product you/he/she has still been found
what presents the absolute safety against the action that decomposes
of sea-water.

2. The most harmful mixture of sea-water the acid is of the
dissolved sulfates, sulphuric acid that is the principal agent
in the decomposition of cement.