Burlington weekly free press. [volume] (Burlington, Vt.) 1866-1928, 1908-10-01
uHHKMn MHHHEHHUu 1n1 A11 l40lH
: GOOD ROADS :

S<~11DOs III
H111101100u1U,
being 1919 cents a square yard In this
section lOo0 square yards were treated
and on this eight cubic yards Of gravel
were spread and nine cubic yards of
sweepngs removed.
COAL TAR EXPERIMENT NO. l.
For this trial n section Of road 40
feet in length and IL feet in width was
selected. and this was free from holes
and depressions. Though the road was
much worn 1t was considered to be In
condition which would make n fair
test OF the method No repairing was
made but the surface was clearly
swept and then the tar. heated to
temperature of ls5 degrees was we'll
broomcd in and evenly distributed. On
tits application n Heavy coating Of
travel was applied and this was we'll
rolled and made compact. the surface
being level and even. While II was
found that this surface was somewhat
dusty directly after tho treatment It
improved in this respect with use and
Mt the expiration Of three months was
in condition that was almost dust
less. while in appearance It was even
better than the others, but It did not
20 much resemble asphalt. on this sec
ton 0.42 gallons OF tar was applied
square yard The total cost was SIS
cents n square yard, Of which labor
was ~ cents, tar IL cents. gravel Ia
cents, removing swecpngs Ia cents.
On the 600 square yards treated eight
cubic yards Of gravel was spread and
five and two-hfths cubic yards OF
swepings were removed.
WATER GAS TAR AND COAL TAR
EXPERIMENT NO. S.
A section Of tho road rs feet In length
and IS feet In width was given over to
this trial. the combination being re-
suit OF circumstances, The section was
noticeable for the ruts and holes In the
surface. but following the sweepings
these were patched by loosening the
stone with picks. placing the No.
stone in the bottom Of the holes and
on this the No > stone. The work was
intended to be included In the section
given over to the No. experiment but
piled the dressing OF gravel could not
be made until the following day
When tho gravel wss to be spread it
was found tho tar had been SO much
absorbed that It would not hold the
dressing and on the first treatment
OF water gas tar was applied tho coal
tar. The first application was O.3 gal
Ion OF water gas tar and on this was
spread o.S gallon Of coal tar. watch
was heated In the tar kettle and
flowed on to tho road, a team OF
horses drawing the kettle and men
grooming the tar well Into the sur
face. This was then covered with n
| dressing OF grave! and the dressing
was well rolled. The question was
whether the water gas tar was of
value to the road as preservative
or binder but this could not be deter
mined. Because OF the second april
cation the cost was higher and the
items of expense pes square yard
were az follows: Labor 5.s cents.
tar 80 cents, repairs 2.6 cents, gravel
! cent and removal OF sweepings /
cent The treated area was Al square
yards, on which four cubic yards OF
gravel was spread and three and three
| quarters cubic Yards of swepings
were removed
WATER GAS TAR AND COAL TAR
EXPERIMENT NO. 9,
This test was especially interesting
because OF its nature and compare
lively small expense OF tratment, and
! II was with mixture OF equal parts
OF coal tar and water gas tar. 1t nav
ing been determined that while wa
ter gas tar was very light and coal
tar too heavy to be applied without
heating. that there should be found a
medium In which the qualities of each
might be best utilized. To arrive al
a proper combination OF the two ma
terials a mixture was made and thii
was prepared TO be used cold. TIL.
road section $50 feet in length
and 10 feet In width was treated
The surface was rather rough bu
free from noles and depressions anC
this was swept cleanly. The appli
cation of the compound was made
It requiring DAB gallon to give tn
distribution required for this especia
work. The work OF grooming It II
was not moro excessive and there wa
material saving in the other labo
and tho expense of heating was ell
minated. The dressing was of cleai
half-inch stone trap screenings) o
pea stone carefully spread. This coat
Ing was well rolled and while the alb
sorption by the dressing was not suf
ncient to permit as much dressing
being applied as was believed bes,
smooth surface was made tna
made good footing for the horse
without increasing tho resistance I
vehicle traction. With use the roa
improved IN condition and had tn
merit OF being practically dustless
For this work the cost was CO cent
the square yard. OF which thre
cents were for labor. tar l5 cent.
screenings OF cent. removing sweep
inRs ono cent. On the area Of SO
SQUARE yards eight cubic yards O
pea stone were applied and eight an
three hfths cubic yards Of sweeping
were removed
WATER GAS TAR AND COAL TAI
EXPERIMENT NO. 10.
In this work the conditions as I
road and preparation were much tn
same as for No. 8. but instead of
!. ton dressing OF pea stone gravel wa
employed and the proportions OF tn
compound were hive parts o1 coal ia
and three parts OF water gas tai
Tho quantity was 0.S gallon to tn
| .,,ora ward. After rolling thu sur