The daily telegram. [volume] (Clarksburg, W. Va.) 1901-1926, 1915-06-10

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a bag OF cement weighs 90 pounds,
IL pounds OF oil, or about lr2
quarts, should be added for each bag
OF cement used in the mixture Tne
sand and cement should be hrst mixed
with the proper amount OF water into
a stin mortar, to which is added the
correct amount Of oil, and the whole
mass again thoroughly mixed until all
traces of oil have disappeared Far
.ttcular care should be taken to In
sure that the oil is thoroughly tncor
porated in the mixture and the ume
OF mixing should be particularly
double that when the oil is not used.
should not be used in oiFcement-
concrete work as it is difficult with
this type OF machine to Increase the
time Of mixing sufficiently
The kind Of oil is also important
and the following technical specas
fcations are suggested IN the Dut-.
letin in order to prevent the use OF
certain oils which might tend to I'M
pair the strength Of the mortar OF the
concrete.
H) The OIL shall be fluid pet
|roIeum PToouCC@ dA0 9A1<AAA ~. 49, -.
adnnixture Of fatty or vegetable oils.
(2) It shall have specific gravity
NOT greater than 0-94S at a tempera-
ture OF 250c--
go It shan show fash point of
not less than I50oC. by the closed
cup method
(D When 24occ. Of the OIL IS heated
in an Engler viscoSimeter to oGc Co.
and maintained at that temperature
for at least three minutes. the hrst1
100 &C. which flows out shall show
la specific viscosity of not less tnan
IS nor more than SO
(1 When one part OF the oil Is
shaken up with Q parts Of hundredth
normal caust1c soda there shan be no
emulsifcation, and upon allowing the
mixture to remain quiet the two COM
ponents shall rapidly separate In dis
tinct layers
For practical use the addition OF
oil viii be found particularly uSetul
In the construction OF basement
floors and walls Many of these now
in existence are continually damp and
such condition may be remed1ed by
the application OF an oil-m1xed moi
tar coat to the old surface a mor-
and two parts sand and containing
five per cent OF oil should he sufh-
GENTLY non absorbent for this pur-j
pose
Watering troughs and cisterns made
Of oiI-mtxed concrete should also
prove Of considerable practical value /
in the conservation OF water. In thet
construction OF barns. where on-i
mixed concrete is used, the interior
will be notSceably drier than when
ordinary concrete is used Owing
fr o1aon1iTooSS 4ndt
resistance to fire, concrete barns are
becoming more and more popular, but
they suffer from the disadvantage that
during long beating rain the side
walls are inclined to absorb much |
moisture, which ultimately penetrates
into the interior The addition OF
oil to the extent OF five per cent
of the weight OF cement in the conf
crete used IN the side walls obvlates
this objection BAN floors can also
be constructed in the same way with |
advantage A damp-proof floor is
warmer because OF the lack Of evapo-
ration from its surface, and 1t is
also more sanitary than an. ordinary
concrete floor because OF its non-ab-
sor5ent character.
There ARE. OF course, any number
of other types of buildings and struc-I
lures Of an sorts IN which oiEmixed
or, If this is not necessary a coat OF
oil-mlxed mortar may be applied ef-i
fective1y-
Attention is called, howeyer.t to the T
fact that extreme care in proportion
ing mixing and placing the concrete I
is absolutely necessary Il the addition
of any water-proofing agent IS to be
OF value The process OF mixing oil
with concrete has been covered by a
H.. ~
liberty to use It The methods of
using this material are discussed
fully In the bulletin already men-E
toned
B1fous Attacks.
when you have bilious attack