Free trader-journal and Ottawa fair dealer. (Ottawa, Ill.) 1920-1927, 1922-04-26

snow u dense, stOne-like body, free
from lime, large air pockets, marked
Nominations or cracks which would
tend TO weaken the structure, The
brick shall not lose Of tner weight
more than twenty three (23l per cent
when subjected to this RATHER test
conducted in accordance with the
standard specifications for paving
brick adopted by the American Soce.
" FOR Testing Materials In 1915 The
surface Of the brick after they have
been rolled and inspected shall be
swept clean and filled with an as.
phalt filler as soon after the rolling
a. possible. All brick shall be- filled
and completed ON the day ON which
they are laid
That at all street intersections the
yitrifed brick shall be laid railways
at an angle Of forty-nye (45) degrees
to the center lines Of the streets; that
between the rails Of all railways and
street railways the brick shall be laid
Railways parallel with the rails; at all
other points said brick shall be laid
Railways Al right angles to the center
lines Of said streets, and IN true lines
All brick shall be laid so as TO break
in joints at least three CD inches with
the brick In the adjoining row, and in
no case shall less than nCfourth
% brick BE- used. That the asphalt
/ filler shall conform to the following
specifications: 1t shall contain not
less than ninety-nine and five tenths
| $3.50 per cent pure asphaltic btu.
men, absolutely free from pitch or
coal tar products, and composed of
not more than seyenty-one Gu per
cent nor more than siXty.seven (G7)
per cent petroleum, and not more than
thirty-three (33) per cent nor less
than twenty-nine (29) per cent as
phaltum The specific gravity of the
filler shall be more than ninetynine
C99) at sixty 600 degrees Fahren.
heit. The melting point shall not be
less than two hundred ten (2lO) de.
grees Fahrenheit, or, by capillary tube
tests, it shall not commence to run
below one hundred ninety-fiye G95)
degrees Fahrenheit, nor commence to
melt below two hundred fifteen (2l5)
degrees Fahrenheit The asphalt
shall weigh not less than seven and
| One-half GI2) pounds and not more
than eight and one-fourth $40
pounds to the gallon, at tempera.
ture of sixty (60) degrees Fahrenheit,
and il shall remain ductilc at all tenn
peratures, shall be absolutely proof
against water and street liquids,
Shall adhere firmly to the brick, be
pliable rather than rigid, thus pro.
viding for expansion and contraction
and traffic conditions. The asphalt
filler shall be heated in suitable kct.
tie equipped with a Thermometer,
which will register the temperature
Of the contents at all times The as
phalt filler shall, at no time. be heat
ed to a greater temperature than its
iiashpOint nor poured at tempera-
ture of less than three hundred (300)
degrees, Fahrenheit In order to in.
sure that the filler will adhere firmly
to the brick they shall he clean and
thoroughly dry. The filler shall be
moved slowly back and forth over the
surface by means,Of suitable squeeges
until all the joints are completely
filled and the surface entirely covered
with a thin coating Sufficient time
vail be allowed after the asphaltic
filler is flushed over the surface be-
fore using the squeeges to allow il to
penetrate to the bottom of the Joints.
are must be taken not to squeeze
partially cooled asphalt filler over
uncovered brick, thereby bridging the
top joints and not filing the bottom
All settlement in the joints after the
asphalt has cooled shall be corrected
by adding filler before placing the
top dressing. A coating of dry, clean
washed sand shall be spread over the
surface to take up the surplus as
phalt The brick pavement shall then
be thoroughly rolled to imbed the sur
face dressing in the asphalt.
Par. Is. That the cement concrete
used. in the above described fOunda-
ton shall be composed of one Cd part
Of best quality American Portland
Cement, two and One-half (212) parts
sharp torpedo sand and five 90 parts
water-drenChed limestone or six CO
parts gravel. no stone larger than one
and one-half Q12) inches in its great.
est dimensions, thoroughly mixed and
with enough water to make wet con
crete If gravel be substituted for
limestone the mixture shall be one
a. part American Portland Cement,
as above specified, to six CO parts
gravel no stone larger than one and