Vernon County censor. [volume] (Viroqua, Wis.) 1865-1955, 1908-01-08

a new wearing surface is provided
which cannot be removed by the sue
ton of the automobile ties, and the
roadway is practically dnstless at all
times without any watering. and is n
tirely free from mud in wet weather.
so that as the roadways treated with
'Tarvia" require no expense eS -ept
the ordinary cleaning. an annual saw
ing is made which should be allowed
for in reduction OF the extra expense
of first treatment.
The roads thus treated passed
through the winter and showed but
little damage from the effects Of the
frost, and were generally in very good
condition in the spring. In July Of
this year the surface of the roadways
which had been treated with ''rarvia"
in 1906 began to show the effects of
wear, and during July and August
about one-half OF the three and one
half miles treated last fall were re-
treated, and the balance Of the three
and one-hah miles were patched where
necessary. The cost Of maintenance
of the "Tarvia" surfacing for this year.
including retreating and patching, has
been three and one-halt cents per
square yard.
road in particularly good condition
ment of the parkway roads with this
material have been satisfactory, and
it has been very effective in the pre-
servation of the surfaces of the roads
and in making them practically dust
less and free from mud. The treated
surface has an appearance similar 10
tar concrete surface, but not 50
smooth. No odor is apparent afteT
the material has been on the road a
few hours, and what little there is at
the time of the application is not at
all disagreeable. The above-descrihed
work has been done on the parkway
drives in Maiden. Medford, Everett,
Cselsea and Revere.
Various experiments have also been
made in the use of oil on the roads.
About one mile of roadway in Wat =
town and about three-qu rters of a
mile in Revere have been treated with
petroleum product known as 'asphal-
toilene," which it is claimed contains
from sixty to seventy per cent liquid
asphalt. This material is a Kentucky
oil, from which the naphtha and other
volatile substances have-been removed.
leaving the heavy asphalt base, which
is applied to the surface Of the road in
its natural state, without heating, by
means of the white Oiler." a ma
chine used in the application of oil in
California. This treatment requ res
road in particularly good condition
either nearly new or new,y resur-
faced, and very little cleaning is neees-
sary. only the removal of the loose
dust. The cost of this work was six
cents per square yard for the material
and its application.
The roadway in WATERFOWL along
the Charles river which was treated
with this material is constructed with
a gravel surface; the one in Revere
| is macadam. These roads, which We're
treated in June of this year, have been
in very good condition since their
treatment, especially the gravel sur.
faced road, which has required lao
watering and no repairs. The mac
adam road has required no watering,
but has required someittle rolling G.
the sides on account Of the parucu-
larly severe conditions of traffic Aue
treatment is surely effective in pre-
venting dust and in bonding the sur
face of the road, and especially so for
a gravel surfaced road. There is no
offensive odor from this oil.
| In the Middlesex Fells division OF
the metropolitan parks 100000 square
yards of macadam roadway have bee /
treated with a mixture of water gas
tar and Kentucky oil similar to that
above described. This mixture is
made in varying proportions of from
| two barrels of oil and six barre Of
water gas tar to four oil and six
water gas tar, the amount of oil used
| depending somewhat upon the con-
dition of the road on which Il was
used. This mixture was heated by
steam coil in the mixing tank, and
drawn off by gravity into an ordinary
watering cart, and applied by means
fof a special attachment to the cart.
| This treatment thoroughly lays the
dust at the time of its application, and
remains effective for this purpose for
from eight to ten weeks, but after
that length of time requires further
treatment. This mixture has little, II
any, bonding qualities, and does not
prevent the roads from being stripped
of their surfac'ng, the materials work
ing into the cutters. Possibly, after
number OF applications of this mater
| ial, enough oil might accumulate 70
form a bond. The average cost Of
one application is about four cents per
square yard.
The various methods of treating
roadway surfaces are as yet more or
less in experimental stages, but enough
has been learned regarding them to
show that they have merit and with
longer experience with them IL win
probably be possible to determine
which of these, or other treatments,
are the best for different types ana
conditions of roadway In different ID
cations.
There can be no doubt that it is aD-
solute7y necessary today 10 adopt some