The Cairo bulletin. (Cairo, Ill.) 1???-1928, 1906-03-21

OF the finished paving on the east sue
thereof and adjoining the east curling
which shall be even or flush with the
paving next to IT.. The top or top line
of the finished limestone curbing on
the said west side shall be seven and
half (7s) inches above or higher
than the adjoining brick paving
Section 8. Oak marginal curling,
three CD inches by Twelve G2) inches,
shall he placed flush with the top of
tho finished pavement across the ends
Of all intersecting streets, with such
earth back filing as win fully secure
and support the adjoining paving.
Section 10. Upon this subgrade
and firm earth surface. so prepared
and shaped as aforesaid, shall be laid
or spread foundation of Portland
cement concrete, of the uniform thick
ness Of six Co inches composed Of one
part of Portland cement, two (2) parts
Of clean sharp sand and six Co parts
of hard limestone broken or crushed
into sizes which will pass through a
ring Of two (2) inches inside diameter.
II shall be free from mud, dirt
dust am loan and be screened when
necessary. The sand and cement shall
be thoroughly mixed dry and then be
made into mortar of the proper con
sistency and thoroughly worked over
with hoes. The broken stone thor
ougnly drenched with water, but con-
tanning, no loose water in the heap,
shall ,nen be added to the mortar in
the proper proportions The concrete
shall then be turned and mixed until
each piece of stone is thoroughly Gov
cred with mortar. The concrete thus
prepared shall be Immediately placed
in the work, and be spread and thor
oughly compacted by ramming until
free mortar appears on the surface.
The whole operation Of mixing and
laying each batch Of concrete shall be
done as expedtiously as possible with
a sufficient number of skilled men,
and must be entirely completed be-
fore the cement has begun to set. No
re-tempering of concrete shall be per |
mitted, and any concrete in which the |
cement has begun to set shall be re-
jected.
Section H. Upon the foundation |
hus prepared as above required, |
shall be spread a layer of clean sand |
If the uniform thickness of two (2) |
inches; and upon this sand, as a cush-
on, shall be laid the paving bricks. |
They must be closely and evenly laid
II true straight lines at right angles
o the curbing; and all joints must
)e broken at least three CD inches.
Whole bricks only shall be used eX-
,ept in starting and finishing courses
t the curb or at catch basins man
loles, etc, in which case nothing but
lalf bricks shall be used and In break
ne bricks for this purpose the joints
must be cut straight and square with
he top and sides.
All the work throughout must be
one by skilled men and with the aid
f proper tools.
When the bricks have been laid. the
~ with a roller Weighing not less
han three CD tons nor more than six
g tons; OF where rolling is. imprac.
cable then by tamping with a ninety
BOD pound tamper upon a twelve (12)
lch oak plank at least six co feet
ing.
The pavement shall then be thor q
lghly wet by The contractor so that
| soft bricks can be detecred and all
lch bricks shall be removed and re-
accd with good hard ones; and all
Elective bricks found n the pave. >
ont shall be removed by the con
actor and be replaced with good
les.
Section H. There shall be eXpan
on joints or cushions across the pave.
ent and at right angles TO the curb =
g, every twenty-five (2J) feet, and -
'ntinuous like joint or cushion be- y
feen the paving and the curbing. y
ade Of hot asphalt or No. six co pitch,
le half Ga) inch thick and extending
ON the top of the paving down to the
'ttom of the bricks. !,
Section Is. After the rolling of the o.
ick is completed, the filler or cement n,
out which shall be supposed OF
ual parts of clean sharp sand and r.,
,rlland cement shall be made and "
piled in the following manner;
The sand shall be dry and not ex.
cding onc-third G-3) bushol thereof. | !,
gether with . like amount of cement. =,
all be placed in q box and mixed =,
y until the mass assumes an even A..
d unbrokcn shape (shade) and
en- water shall be added So as TO -
rm LIQUID of the consistency Of -,
in cream. From the time the water
applied until the last drop is re. ~
1ved and floated into the joints OF -.
q brick pavement the grout shall be n
pt in constant motion. The mixture :,
all be removed from the box TO the .
'eet surface with a street Scoop
ovel the same being all the while =.
Tred in the box as the same is being -
lis emptied. and from the moment >,
touches the bricks, It shall be thor.
ghly swept into the joints or 80