The Cairo bulletin. (Cairo, Ill.) 1???-1928, 1908-11-18


and must be entirely completed be.
fore the cement has begun to set No
re.temPering of concrete shall be per
mitied, and any concrete in which the
cement has begun to set shall he re
iectet.
Sand cushion,
Section s. Upon the foundation
thus prepared as above required,
shall be spread a LAYER of clean SAM
of The uniform thickness of two ca
inches; and upon this sand as a
cushion shah be laid the paving brick
The Bricks,
Section O. The bricks shall be
straight, regular in size and SHAPE,
and free from flaws and cracks They
shall not be less than 2i2NlXS nor
more than 3t,x4x9 inches. They shall
be expressly made for paving pu"-
poses and shall be hard and tough
land thoroughly vlrided, and mus
not absorb more than four per cent
~ ''i'IT "''Slt iA "aAel '''V' "'''''7
broken ami immersed TOT lortE' ish'
C4Sl hours When desired by IN
said BOARD Of Local Improvements or
by the city Engineer OF the Guy 'he
bricks shall be submitted to a test OF
cAe ~ hour IN ihe Natioha' bflc :
MANUFACTURERS Association oiaH"'i l
Rattlpr and under conditions pre-
sff'oed ~ 'h"t asaocia'lol' "N" = Wy
less by ABRASION turing Suci TEST eN
ceeds twenty i-' per 'el'N u ''1s
original "'lEh' O. me otlcNS tested
men saeh DFlehs "AaiI oe feJe''' :,
.TbeE shau not contain liiile III sue"
4uahii'les as 10 cause olS'nies'"''o''
on c'aehlhE aI'er oei"S 'i''''e' %" ~
water len GU DAYS.
Laying me 0r'oNS'' ho'',"s anu
tn9 Sur1@ce' &C
9e'''oa ~. lie pI.chs mus u
closely an" eNeu'S iA'o i" a. ~
straight INES at rlght angles 10 ",1
euFnlhS ana an JOINTS must pe o'oh
n az least 'hree 90 lhc'es. "uo''
bricks only shaI pe os'd except ;"
starting and hnishins courses at IN.
sdio cI ~ caitil'"aa'HS' hi"ll"o'0
etc. III "hlch case HothihS ou' Ha'
bricks shali he uSea' ans III breahlu7
bricks for lhlS purpose lhe Jo'hts
must be cut straight ana square Wilt
The tops and sides. sad bricks shaii
be lald upon lheir edges ana Sha'I %
one course deep.
Nhen the bricks nave oeeh ia'"' III
surface shall be made smooth by ron
ing with a roller weighing not less
iran three CD t'ns hoi more thah SD
tb} tons; or where roliihg IS hpI"t
ticable then by tamplng with ninety
(so) pounds tahlper upon !"eiss
t12) inch OAK plank al Ieast SIX 70
feet long
The pavement shall lheh DC 'no'
oughly wet by the contractor so ma
all soft Dicks can De detected ana a.
such bricks shall be removed ana re
placed with good hard ones ana an
defective bricks found III the pave
ment shall be removed by the COZ
tractor ana De replaced Win eoo.'
ones
Inc r'l'er'
Section H. Inc cfeVlceS oe'"ee'
the gutter hags ana me DITCH paw
ment and between All oricK JoihlS
shall be poured iull with an aspha'
tic cement filler equal IN quaii'E 70
the American Asphaltum ana kuDoe'
Company Cement Filler.
Said filler shall be free from any
coal tar or its products and shall con
tain not less IMAM JS-2 per cent pu''
asphaltic bitumen, composed oil 80
per cent petrolene and al.2 per cent
lasphaltcne.
The specific gravity OF toe hller
shall be of G.99 Beaume, at 60 de
grees Fahrenheit: II shall not com
mence TO melt below 1875 degrees Fab
renheit nor 10 run" below 2l5 de-
grees Fahrenheit. nor shall it become
brittle above &c degrees Fab
renheit. Said asphaltic filler
shall weigh approximately &
mounds per gallon at co de