Honolulu star-bulletin. [volume] (Honolulu [Oahu, Hawaii]) 1912-2010, 1915-12-09
bank sand.

bank sand.
Practically nothing has been ex-
pended for repairs in over 20 years"
'"The following is taken from report
of Frank E. Rodgers, state highway
commissioner of Michigan. read be-
fore the good roads congress held De-
eember III, 1913, at Detroit:
Concrete can no longer be regard
ed as in the experimental stage. II
has long been accepted as the most
suitable material for the foundation of
pavements for city streets, mo 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 to
have been most active In this work. >"
Taken from the report of Clarence
E. Bayley, city engineer of Pomona,
read before the League of California
Municipalities Convention, 1913:
"5est and Cheapest.
Having had several years expert
ence in road building, have, from a
process Of elimination, concentrated
my thought and efforts toward the
perfection and adoption of form of
Portland cement concrete road of
thickness commensurate with the
needs Of traffic. surfaced with dress
ing Of asphaltum, oil and rock screen
ings of from IA inch to 3-S inch in
thickness as being at once. the best
and cheapest pavement available.
Best because. of speed and econ
omy IN construction, and early avail
ability. and because Intends to minim-
Ire If not wholly eliminate friction in
the f0ulldaton, thereby enabling larg-
er and l,eayie: leads and FOR the same
reason greater ease in pleasure We
hicles.
a 1:2:4, mixed in thickness of not
less than four inches. and advancing
in depth of stFuetnre as she traffic of
a given strt ct requires"
Taken from report of Dr. E. H.
dean Of the engineering
school Of the University of Oregon,
1913:
'Macadam pavement is rapidly fall.
ing in disfavor all over the country.
The state of New York has spent $685.
100000 upon macadam roads, but a
few months ago, in popular election,
$50 ,G00,0 900 was voted which will be
used In tearing up the macadam roads
and replacing with concrete. A curl
Gus fact is that macadam roads were
factors which made possible the adop-
ton of power traction, including
trucks and automobiles, to the coun-
try; and it is now the mechanical
transportation agents which are tear
ing macadam to pieces and necessitat-
ing heavier type of road construc-
ton
Four Inches Ample.
This is eventually to be concrete
Four inches of concrete will stand
Greater strength than six inches of
On an average, where traf-
.ic is not unusually congested, four
inches of concrete is sufficient
Taken from report of Austin b.
Fletcher, state highway commissioner
Of California:
For large portion of the roads
the commission has adopted a pave
ment consisting of Portland cement
base of a minimum thickness of four
inches and Is feet wide. with should
efs at least three, feet wide on each
side of the concrete. The concrete
base is covered with a thin coating of
asphaltic oil and stone screenings,
forming a bituminous carpet from 3-S
to 1-2 inch in thickness to serve as
surface and to protect the
concrete.
In the environs of San Francisco
thicker base wearing surfaces are spe.
cited and running from Is to % feet
In width.
Roads under contract August l,
1913: -
-. -. Cost Cost