The Cairo bulletin. (Cairo, Ill.) 1???-1928, 1908-11-17


said limestone curbing shall be so set
land placed as to be flush with aud
Support the brick paving which at an
street intersection Is to eXtenl
Iacross the eltire width Of said stree
Section g. All curhng shall be SGT
land finished complete before the com.
IplJ ten Of grading, SO that the said
Icurbiug may be used MS guide IN
! completing The finished sub grade,
and 10 complete the said sub grade, Il
template or other proper means must
be used by the contractors and AFT r
the grading is once completed and
finally and thoroughly rolled through
luut the street shall be wei and 81.
curely blocked eff SO as to prevent
vehicles from entering thereon, eN-
cept these containing materials for
the work, and in that case the surface
OF sub grade shah be securely pro-
tected by planks
section q, The top Of the gutter
flag shall be a continuation OF the
Curve or are a the top surface Of the
flushed pavement The combination
curb aud gutter shall be constructed
with Joints eight (Sl feet apart in the
following described manner; said con.
crs'e is TO be prepared from crushed
stone. sand ard Portland cement and
snail consist Of two (2l courses. TIL
frs course shall be the bottom
course and shall be five 60 inches in
depth and shah be laid on eight (Si
inches of clean cinters thoroughly
mcis.ened and tamped to conform TO
the ont,ine Of the form for the com
biGcG ouh and gutter The second
courfe shall be the finishing or wea-
ing course or surface and the same
shall be one tu inch in depth.
The bottom course shall be com
posed of one ca part Of Portland CO
meut, two ~ parts of clean sand AMI
five t5p parts of broken limestone of
sizes that will pass through a ring OF
tbree-quarters "a OF an inch inter
nal diameter. which shall be entirely
tree from dirt or dust The sand and
cement used IN constructing this bot
tom course shall first be thoroughly
mixed dry, sufficient clean water
shall then be added slowly by sprink
Ling and the broken stone shall then
be added and the whole constantly
stirred until thoroughly mixed. This
mass shall be spread in forms upon
the cinder foundation and shall be
rammed until all intcrstIces are thor
oughly filled with the mortar. particu
lar care being taken that his bottom
course is well rammed and conso!i
dated along the outer edges
After this bottom course is COM
pletsd and before it has had time to
begin to set. the finishing or wearing
course shall be added. The finishing
course shall consist of a stiff mortar
composed Of one On part of Portland
aement and one and onehalf (l1aD
parts OF clean, sharp coarse sand and
shall be laid to the depth OF one "a
inch and shall be carefully smoothed
TO an even surface, which, after the
drst setting takes place, must not be
istmbed by additional rubbing.
The curb and gutter shall be pro
tected from the sun and wind for
twenty-four (2H hours after the com
pletion during which time it shall be
kept moist by sprinkling
The tops or upper edges of the said |
curbing on both sides of said pave
ment shall be, when finished com
plete throughout its entire length one |
inch below the grade hereinafter
pecified for the center line of the
said brick pavement when the same
has been completed.
Concrete Foundation.
Section !. Upon the said sub-grade
md firm earth surface, so prepared |.
and shaped as aforesaid, shall be lai
CT spread a foundation Of Portland
ssmert concrete, of the uniform
.1iclucss Of five t5t inches, composed
Il one % part of Portland cement.
.hree 90 parts of c;oan, sharp sand
ard six 60 parts of hard limestone
llokeu or crushed into sizes which
g u pass through ring Of Two OF
inches inside diameter. 1t shall be
rse from MID, dirt dust and loan
nd be screened when necessary |
The sand auG cement shall be thor
,ushly mixed dry and then be made
nto mortar of the proper consist
ncy AM thoroughly worked over
With hoes The broken stones. thor
'ughiy lrenchei with water. but COLI
aiming 20 loose water iu the heap.
hail then Dee added TO the mortar b.
be- proper proportions: The concrete
hall then be turned and miN@l until
ach piece & stone rs thoroughly COY Z
red with nioriar. The copcretc thus
repaired shall bc Immediately placed /
o the work. aud be- spread ana thor
ughly compaccd by ramming until i
rec mortar appears on the surface. :
he whole operation Of mixing AMI :
iying each batch Of concrete shall bc
one as expeditiously as possible with
p sufficient number of skilled men. :