The Caucasian., 1903-06-07


s.s
-- ------------
street. and continued until the pavement
has been thoroughly compressed
e'reat care must be exercised i'll max
,ri;rh I,ae,, ,lra,I,. 'n a, ar'' i"t
t. cool First, all loose and all nYcrn-
dressed povGer must he removed from
the edge, Of tie pavement aud o.,
Joints swep, perfectly clean \ gasoline
rlat,r must thtn lu. used in hc3ti,g
thoroughly the rough csgcs of the nave
n,nt rirtadv laid, before new material
Is added he sprtadiny tanrlro anal
rolling then goes un As before the 81
intended bong to leave no trace ,a the
tInction. # s., ordered Cby the en-
ginetr) instead # applvlrc the mutrna}
- Inc rough rdg, the sail edge shall )f,
cut with an axe ST: as Ia leave 4 sn,rutl,
painted with coating . a,pI,a,ic &C.
mcf1t before the hr,tll powder IS 1aidj
against it.
All material and work in cunntcti! II
with the foundation and preparation and
LAYING ~ aspIa]t pavement lereinhefo,e
spe eci1ed will be sub1cct to inspection,
direction and aI,Drryal q; .he city conn
eli or it's ,1u1v authorized agent At any
time O, place where anv oart Of the
work NAV De in progress
e,,,-,r,~, .r,,,,r - .,.,,,- ,~
81 '>~fr l'fN 'oNo fN~< he hlf-
CGtl ltlC tA\ EAlEN |.
t2.-L>>cavation: The roadway shall
be excayated to the nee, ssary dctth f.
urovide for the thickness ns navfment
and tho,oughIy rolled with 1o-ton
steam roller, until the surface os the
Sub grade is solid and approximatelv
parallel 20 the nr,Dos,d surface % the
pavement. Soft and
,pringv places not affOrdlng firm foun-
lation shall be dug o,,t and ref1Ied with
good sound earth. CineIers, gravel. Stag
tone O, concrete as the engineer NAV
iircct,
63.-Fountation On ton of the s1,I- |
foundation shall be snrea,I to deoth
IF six inches lavsr a hard crushed |
stone. passing a three-inch ring and
,augh, on ore-inch ring. which shall |
hen be compressed with a heavy steamt
Dad ,ol1er. On this shall he scattered
urpose Of filling III. the spaces in ttle1
urface of s'e coarse stone Out not inT
uch a quantity as to increase The de.th
f the foundation course, After again
o11ing, this shall be coateQ with A Thin
aver of Warren's No. I Ruritan Brand
,emi-luuid 1bituninors) cement. OF
10. 3 Bitl1fithic cement. said bitrrnen
, be sufficiently flexible 20 unite Aee]vA
nth the cold stone. II
On 0on Of this No. cOsnpositiOn shall I
c spread heavy coating q Warren
TO- "a Puritan Brand Hard Stun1in-Y
us Cement or No. "a Bitulitljc Cement
,r the purpose oS binding the founda-
on together and making it ,eadily unite
18th the bitun1inous concrete wearing
1rface. One gallon of the bituminous ce-
lent will be used 20 each sut1are ward
f surface On this prepared foundation
1all be laid The wearing surface or
ayement proper. which Shall be Coin
osed of carefully selected, sound. hard
-,1shed stone. mixed with bitumen and
i'd as hereinafter srecifed, J
64.-Wearing surface: After heating
lie stone in a rotary mechanical driver, |
, a Temperature of about 2,o Fahren
.it, il shall he elevated and passed
rough a rotary screen. having six or
ore sections with VARYING sized open ,
gs. the maximum of which shall be
I'd inches and the minimum 10 inch /
diameter. The several sizes of stone
us separated by the screen sections s
all pass into bin containing six sec
ons or compartments. From this bin {
G stone shall be drawn into a weigh :.
*, resting on scale. having seven
ans The stone from each bin is ac-
rate1y weighed in the proportion
1ich has been previously determined Y
laboratory tests to give the best re-
Its. that is, the most dense mixture of t
neral aggregate. and one having in
rent stability. From the weigh box u
ch batch of mineral aggregate. COM -
sed Of differing Sizes accurately I"
sighed as above, shall pass into ? t,
yin p,1g" or other anproyed form Of
xer IN tbie ,,;xer ebo11 he ,dd.d , n