Albuquerque morning journal. [volume] (Albuquerque, N.M.) 1903-1926, 1916-12-04

paving material and the result is that
| concrete is selected This is due to
two reasons. Concrete pavements
have given good satisfaction and there
Is a material saving in the original
cost. This city put IN 252, 600 yards
up to January !. 1916, and is putting
in 100000 yards more this year
wv c. Wolf, city engineer Of Belle
vile, ILL.,, states that Belleville put In
$4,000 yards in 1913, 1914, 1915 and
$4,000 yards will be built this year.
He states.
AT all our public hearings the
property owners now demand concrete
paving, which proves how unusually
satisfactory 1t iB. There has been
no maintenance cost so far and from
all appearances there will be no main
tenance cost for long time to come
"F. y. Wilson, city engineer Of Ma
son city, writes:
The pavements laid in 1909 are in
a downtown district where traffic is
heavy and constant, and at this time
they are in first-cass condition
81 could cite hundreds of similar
testimonials. The concrete pavement
has come TO stay. The year 1917 will
likely see more concrete pavements
laid than in all previous years com
bined.
Much has been said about concrete
pavement being noisy never heard
of this objection being raised before
Saturday. / wired a number of city
engineers as follows
Are your concrete pavements
noisy? Answer
IS. w. Coiner, city engineer Fort
Collins-'Pavements are satisfactory.
Not notlceably noisy. They have no
other type here to compare with
y. II. Rankin acting mayor of
Grand Junction-'Concrete paving
satisfactory Noise not excessive Re
pairs light.
~ 7. Wilson, city engineer of Ma
son City, Ia.-'Haye nine miles Of sat
isfactory concrete pavements. Are not
noisy
'T. IT. Johnson city engineer of
Sioux City-'Concrete pavements en-
inently satisfactory. Are not noisy
even on business streets
james A. French, state engineer,
says he never heard complaint on
noise. Don't confuse a concrete road
with a wood float sandpaper finish
with a smooth sidewalk A concrete
pavement is no more noisy than an
asphalt pavement when the asphalt
is cold No one who has lived adj
Joining concrete roadu even raised
this objection.
Does concrete pavement crack?
This is provided for by expansion
joints Mt intervals in the pavement
These joints are one-fourth inch wide,
filled with an elastic joint filler
The report has been circulated
that the pavement at Santa Fe is
badly cracked, I telephoned Mr.
French, state engineer, yesterday He
said this was absolutely false, that
the pavement is giving excellent salts
faction, and there is not a crack in
1t, Property owners are well pleased
Mr. Metealf has verified this in per-
son.
Granting that concrete pavement
properly laid Is satisfactory, would
the type specified for Central avenue
make durable pavement? The
specifications provide for a pavement
of six inches of concrete The first
four and one-half inches is composed
of one part cement, three parts sand
and sick parts rock. The top, one and
one-half inches is composed of one
part cement, one and one-half parts
sand and three parts rock, This gives
a better wearing surface than the
Golden road near Denver. The wear
ing surface on this road is one part
cement, two parts sand and three
parts rock The wearing surface of
my pavement would contain IL
per cent more cement than is con-
tanned in the wearing surface of the
Golden road"
The question has been raised as
to the comparative merits of a one
and a two-course pavement The price
of cement In Albuquerque is based on
a AZ l-2-cent freight rate. This
makes the freight $l.62 per barrel or
about double that of the north and
east, In one-course pavement 1t is
necessary to make the entire pave
ment of the same proportion as the
wearing surface. AS it requires more
labor for two-course pavement than
for one-course pavement, it is econ
omy where cement is cheap to lay
one course pavement.
I'm the wearing surface we must
provide for not only sufficient crush
ing strength but also for the abrasive
action of the traffic. In the base, or
lower portion, of the pavement We
have only to provide strength to sus-
tain the heaviest traffic. Concrete,
as specified for this pavement. will
sustain twenty-ton road roller with
cut injury
"Mr. Nordhaus quotes James n.
Gladding, former city engineer, as
saying that a mix Of one part cement,
three parts sand and six rock was an
mixture. Yet Mr.. Glad
ding drew up specifications for all
the pavement laid by the Texas Btu
lthic company and his specifications
provide for one part cement, three
parts sand and seven parts rock. The
wearing surface OF a bitulithic pave
inent has. of itself. no strength to
sustain load The entire weight of
a load is carried by the concrete foun-
dation so that it is Just as necessary
to have q good foundation for btu !
lithic pavement as for concrete |
The bitulithiC pavement |