Free trader-journal and Ottawa fair dealer. (Ottawa, Ill.) 1920-1927, 1920-05-29

GUS operation, completing ScttionS n'
tween expansion joints without IN
use OF Intermediate croSSforns q
bulkheads. The concrete shall D.
struck of for the entire width OF tn
pavement and brought to the estaD
lished grade by means OF lutte.
As soon as possible after the con
crete has been struck of, il shall b'
rolled with an approved metal roller
| having a smooth. even surface ap
! proXimately six feet in length, no
| less than eight (S) inches nor NOR,
than twelve I2) inches in diameter
and weighing not more than one nun
dred tl0o) pounds. said roller Shal
be divided vertically through the cen
ter so that IA one "a inch space Is
left TO allow rolling un both sides OF
the projecting joint hller AT the sam,
time, The roller shall be provided
with frame TO which ropes shall BE-
attached on both sides, allowing II
to be pulled across the pavement.
The roller shall be operated at such
an angle with the center line Of the
pavement that it advances along the
pavement abou. two t2l teet lol
each stime across The roller shat
pass from one edge of the pavement
to the other, and At transverse joints
shall be set over the projecting JOINT
hller 50 that rolling may be done on
both sides OF the Joint at the same
time and without interfering with the
position of the joint-dllcr After the
roller has covered a given area in the
manner described. the same area
shall be similarly covered by roller
for not less than three CD times at
intervals of from fifteen 90 TO forty
ti0) minutes. depeuding on weather
and as many times addi-
tional as may be necessary to r"-
mOvo excess water
After the rolling has been Complet-
ed the pavement shall be finished By
two applications Of a belt made Of
canvas, not less than six l6) inches
vide and not less than two 90 feet
longer than the width OF the pave
nent The belt shall be applied with
p combiHed crosswise and longitu
final motion. For the first applica
ion vigorous strokes at least twelve
inches long shall be used, and the
longitudinal movement of the belt
along the pavement shall be very
light.
The second application OF the belt
hall be Immediately after the water
clare or sheen disappears. and the /
stroke of the belt shall be not more |
han four inches, and the longitudinal
movement shall be q continuous for
ward movement.
4 suitable bridge to span the width I
# the pavement shall be used to
nish the joints, no part OF which /
hall come in contact with the tin .
shed work
The finished surface of the pave
lent shall not vary more than one
ourth 90 inch from the specified |
ontour.
4 notchcd straightedgc. ten feet in
angth. shall be used over each trans
erse joint. The traight-edese shall .
8 placed over the joint. parallel 10 (
he center line OF the pavement, and
moved across from side to side
When the finished surface through
he joint shows TO be high or low,
Oncrete will be added or removed to
ring the surface to its true shape.
The concrete adjoining transverse
2ints shall be dense in character ana
fter rolling shall be finished with a
God hOat which Is divided through
he center and which will permit fin
shing on both sides OF the filler at
he same time,
The surface Of the pavement for tho
iStanCe Of eight 90 inches on eaca
ide Of the joint-filer shall be finished
18th metal trowel. when the con
rete will have become sufficiently
ard to work, and the edges of the
oint shall then be quarter-rounded
18th an Cdging tool having a radius
ct greater than One-fourth "a inch.
Par. II. That as soon as the con
rete has hardened sufficiently to pre-
ent being pitted, the surface of the
avement shall be sprayed with water
nd shall be kept thoroughly wet for
| least ten days, As soon as it cah
g done without damage to the con
rete. the surface OF the pavcmen'
hall be covered with not less thar
wo ~ inches Of earth, which cover
hall be kept wet for at least ten days. .
necessary, freshly laid concrete I
hall he protected by canvas cover
ntil it can be sprayed and covered
5 aforesaid
Par l.. That, if at any time dur
1g the progress Of the work the TEN
erature is, or in the opinion OF the
ngineer will, within twenty-fOur ga, /
ours, drop to thirty-five $3.50 de T
rees Fahrenheit. the water in the /
ggrCga g shall be heated and pre-
autiOns taken to protect the work .
rom freezing at least ten days.
Par lG. That the elevation at the
Op of the pavement shall be as fol /
lws:
Feet above datum
y the south line Of alley. ,,....a0.4
\. line 10 it. north OF south
line Of alley Observation-Disclosures.
It center of alley court ........Jc.2J .
1t line 1870 #. north CT sou-h
line of alley .................5o.5
It the north line Of alley. .,....,50.0
The grade shall be uniform bctWeer
he south line of alley and line 40
t. north and from line 1870 f. north
nd the north line Of alley and the
nished surface shall coincide with d
traight line drawn between the above
amed grade points.
In the alley court the outside edge
f the finished pavement shall coin
ide with the above established grades
nd cban bo Pprr, hot on,, linz. (,