Honolulu star-bulletin. [volume] (Honolulu [Oahu, Hawaii]) 1912-2010, 1915-03-08


pavements on the streets Of Honolulu
during his administration. He favors
concrete with sheet asphalt surface,
similar to the pavement now being
laid In Oakland. and his leaning to-
wards this particular brand OF road
material was acquired at Oakland,
where he inspected paving last fall.
Homer has prepared statistics and
other data TO support his claim that
sheet asphalt on a concrete base is
the best type, and some of his data,
gathered from newspapers throughout
the United States, Is prepared and
shown in the following:
Five of the most important roads
leading out OF Chicago are TO be i'm
proved with concrete construction. as
part of the first years work under the
new Illinois state aid law. There will
be 20 miles of concrete paving divid-
ed among heavy teaming and market
roads radiating in all directions into
farming sections and extending to
neighboring cities.
The estimated cost of construction
is about $4,000 per mile.
THE road is to be IS feet wide, sur
faced with concrete eight and a half
inches In center"
Two large contracts for concrete
roads were let to Bent & Pennybaker
Of Los Angeles, California, in 1913.
The first Is for 728,009 square feet
OF road pavement in Santa Barbara.
On the main streets the concrete base
is TO be eight inchesNhick, and on the
other streets six, five and four inches
thick, as the traffic requires, surfaced
with IL inches of asphalt. Contract
prices as follows:
''Eight-inch base, 112-inch surface,
22.4 cents square foot
"six-ineh base, same surface, Is
cents square foot. ... ..
"F;veinch base, same surface, 16
cents a square foot. H.. -.-.. .....
Fourinch base, same surface, IA
cents square foot. 1882
The roads are 80 feet wide.
The second is for 6la miles of the
highway, 2k miles between the city
limits OF Pomona and Ontario, and 4
miles east OF Ontario The speeifica-
lions call for a road 20 feet wide be.
tween Pomona and Ontario, and the
four-mile stretch east of Ontario, Is
feet wide: all to be four-inch concrete
base with as-inch asphalt, oil and sand
dressing"
The first real Portland cement all
concrete road was laid In Bellefoun-
tain. Ohio, more than 90 years ago and
used by heavy traffic ever since, and
is still good.
The pavement consists of four
inch base and a twoinch wearing sur
face.
The base is of l.2:4, machine mix.
ed gravel concrete. The wearing sur.
face IL mixture OF cement and bank
sand.
Practically nothing has been ex-
pended for repairs In over 90 years. =
The following is taken from report
of Frank E. Rodgers, state highway
commission er Of Michigan, read before
the good roads congress held Decem-
Der IL. 1913. at Detroit:
" 'Concrete can no longer be regard
ed as In the experimental stage. I'll
has long been accepted as the most
suitable material for the foundation Of
payements for city streets, no matter
what material Is used for the wearing
surface. The last five years has seen
an immense yardage Of concrete pave
ments laid in the cities and towns Of
the country, and a rather large mile
age laid on country highways.
Michigan, Wisconsin. Illinois and
Iowa are the states which seem toll
have been most active in this work. =
Taken from report Of Clarence e.
Bayley. city engineer OF Pomona. read
before the League OF California NUM-
CAPABILITIES Convention, 1918:
Having had several years exper.
ience In road building. ] have, from a
process Of elimination. concentrated
my thought and efforts towards the
perfection and adoption of form Of
Portland cement concrete road Of al
thickness commensurate with the
needs Of traffic surfaced with dress
ing Of asphaltum. oil and rock screen
ings Of from A-inch to %-inch in
thickness as being at once the best
and cheapest pavement available.
Best because Of speed and econ
omy m construction. and early availa.
bility, and because It tends to minim-
re Il not wholly eliminate friction In
traffic by reason of the firmness Of
the foundation, thereby enabling larg-
er and heavier loads and for the same
reason greater ease in pleasure We,
bicles.
The mixture of concrete should
be LIZA mixed in thickness Of
not less than four inches, and adyanc-|
ing in depth Of structure as the traf.I
fic Of given street requires.
Taken from report Of DR.. E. H. Nc
Callister, dean of the engineering
school of the University of Oregon,