The Caucasian. (Shreveport, La.) 1900-192?, 1903-06-07

such s1anner as via be two inches in
thickness attic compression. Y Bluss be
at temperature Of 50 degrees Fab
renlleit when spread on die steeet. and
therefore, ID so ordered by the engirecs,
il shall De A1ouglR to the Greet in
boxes chat can be handIeA ~ two nen
AVID ell.lnped at the eNac0 place 0hers it
is q be spreaA The tarlping must begin
Immediately after the Spreading OF the
powder, at krss carefully ana gradually
engineering the force with tools made
ssoeciall, Or the purpose. heated to the
f90Der temperature in portable furnace.
The entire surface must be thoro1ehly
t2Uped with hand hampers, and then
gone over with smoothing irons, till it
presents glossy appearance. l@y Port
sand cement will then be swept over the
,top, and the sueface rolled with steam
roller weighing not less tho six tons
1Ae eoling will 10 first done longit11-
finally and then transverScly at an angle
90 q degrees dtom both sides % the
street, and continued unit, the pavealens
has been shcsoughls compressed.
Ssreat care must be exercised in max
mg a psopas bond with she slnface.
whicS has beee already fai@ and allowed
O. eco' Fivst. all loose ana all uncom-
w.essed po~dee must be semoved from
the edges e. de pavement and The
joints swepe perfectly clean. q gasoline
heat6 9lust then be asea in heating
Thoroughly dhe tough edges Of che pave
0,e1h already ahid before new material
is .addea The spreading, camping and
rolling then goes on as before che end
intende4 Seing 20 leave 90 trace OF che
junction. If SO ordered ,by che en-
gineer) 1steaa Of applying che material
70 the cough edge. che said edge shall be
clW with an axe so as 90 leave smooth
joint. This joint must chen be we'll
painted with a coating Of asphatic &c
ment before the heated powdet is laid
against it.
All material and WORK 10 connection
with the foundation and preparation and
laying of asphalt pavement hereinbefore
specified will be subject 60 Inspection
direction and approval of che city eoun-
Gil OF its duly authorized agent at any
time Or place where any pare Oh the
work may be i'll progress.
Adopted by following vote:
Ayes: Allen. Busbey. Currie, Dickson,
Foster, Jenkins. Ledbetter. Lowenthal.
Quigles. Rand, Snydet, Thoman, Eus-
ten, Wise.
Nays: None.
By Mr. Wise
That comptroller be authorized 20 al
vertise ior bids tor Uvalde asphalt paw
ing.
Adopted
BituIithic pavenens specifications
were read as follows:
SPECIFICATIONS FOR THE BIT
ULITHIC PAVEMENT.
Collaboration: The roadway shall
be excavated to the necessary depth to
provide for the thickness of pavement,
and thoroughly rolled with lotion
steam roller. until the surface of the
sub-grade is solid and approximately
parallel to the proposed surface of the
pavement Soft and
springy places not affording firm foun- +
dation shall be dug out and rehlled with
good sound earth, cinders, gravel, Stag,
stone Or concrete as the engineer may
direct
63.-Foundation: On top of the sub
foundation shall be spread to a depth i
of six inches a layer of hard crushed
stone, passing three-inch ring and
caught on one-inch ring, which shall
then be compressed with a heavy steam
road roller. On this shall be scattered
-fourths to one-inch stone for the
purpose of filling up the spaces in the
surface of the coarse stone but not in
such quantity as to increase the depth
of the foundation course. After again
rolling, this shall be coated with a thin
layer of Warren's No. Puritan Brand
Semi-liquid (bituninous) cement, or
No % Bitulithic cement. said bitumen
to be sufficiently flexible to unite freely
with the cold stone.
On top of this No. N composition shall
be spread heavy coating of Warren's
No. "a Puritan Brand Hard Bitumin
Gus Cement Or No. "a Bi,ulithic Cement
for the purpose of binding the founda
ton together and making it readily unite
with the bituminous concrete wearing
surface One gallon of the biturninous &C.
nent will be used to each square yard
Of surface. On this prepared foundation
shall be laid the wearing surface or
pavement proper, which shall be COM
posed of carefully selected, sound, hard
crushed stone, mixed with b1tun1en and
laid as hereinafter specified
o4-Wearing surface: After Heating
the stone in a rotary mechanical dryer,
to temperature of about $50 Fahren-
heit, it shall be elevated and passed
through a rotary screen, having SIX or
more sections with varying sized OPEN
ngs. the maximum Of which shall be
"a inches and the minimum r-Io inch
in diameter The several sizes OF stone
thus separated by the screen sections
shall pass into bin containing six sec
tons or compartments. From this bin
The stone shall be draw, into a weigh
box, resting on a scale, having seven
beams The stone from each bin is ac
curately weighed in Che proportion
which has been previously determined
,y laboratory tests to give Che best se
suits. that is, the most dense mixture of
mineral aggregate, and one having an
nerent stability. From the weigh box
Zach batch of mineral aggregate, COM
,osed of differing sizes accurately
Weighed as above, shall pass into ;
twin Dug or other approved form of