The Richmond Virginian. (Richmond, Va.) 1910-1920, 1915-02-07

SUCH as TO give a piece of work that,
"heh nnlshed. had the exact crown
and contour OF the finished pavement
without the customary and generally
allowable slight depressions.
lhe base was 81 1876 mixture. using
coplay cement, clean washed gravel
passing j 1-2-fnch ring from c. "
Lathrop d Co, of Richmond. and a
clear-grained sand. also from I4atbron
Stakes were set in six-foot SQUARES
on the grade and the concrete was
hoated and tested with a. temn1ata
cut to exact crown after deposit sur
race or concrete was we'll filed, then
ushtly hrooned to give the necessary
roughness for bond with the wearing
surface without the general uneven
ness
NE same care was taken with ina
grade or suhbase as to cross-section
ana elevation rs was required of the
concrete base; no concrete was de-
posted thereon until same had been
tested and pa ssed the rigid inspection
the combined curb and gutter
dimensions We're as follows: Width
OF curb at top 1-2 inches at bottom
b IL inches depth IL inches. width
OF gutter 80 inches. depth inches:
3 inches of cinders under both curb
and gutter.
The curb and gutter were cast in
one operation. After the trench had
oeen aug 70 line and grade a three
men PED or clean oinders was placed
as bed for the curb and gutter
which bed extended behind curh to
the level Of the gutter. These cfnders
were thoroughly dampened and ram
meo as placed, and were drained by
.ieans OF terra-cotta pipe into the
nearest catch-basin
The forms were next COZ ,roa
forms being used for this purpose and
one-inch wearing surface comnosed
OF LIZ mortar was placed on the in
sac or the curb form and the con-
crete was then placed and firmly
,amped. The top wearing course was
then placed end fioated, the forms re-
moved and the entire finished Joints
were broken every six feet and Ar
each driveway the gutter was extenr-
ed into an apron with valley gutter.
erect. while the curb was turned for
a six-foot radius.
Due to the uniform graduation of
the sands locally available great
trouble was experienced in SECURING
SANDS each OF whose composition
when properly blended by the chemist
OF the contractor would give the re-
SUIT desired by the engineer and de-
fhanded by the specifications. This
was, however overcome by the secur-
ing or four grades of sand from diff
ferent sections of the State. with
which the blending was done: in ad-
d1tion thereto the stone clips ana
teh-mesh particles demanded for the
topeka top were secured by the i'm
portauon Of run of crusher screen.
lngs from South Carolina
Old macadam foundation was TO he
removed from the streets to be paved
with mastic pavement and to be re-
pnilr on the side streets that were
curbed under this contract The work
was done as follows: The old maca-
dam surface was first cleaned of dirt
and trash and then spiked up with a
roller having spikes set In the wheels,
me excavated material was then
haufed to the prepared subgrade and
sperad ana rolled, watered and re-
rolled. After doing a little of this
work II was abandoned as being very
unsatisfactory, due to the amount or
clay in the old material and the in
ability to secure a bond with the old
material. In its place new macadam
roadway was constructed of thick
ness OF six inches with the stones
secured from several local quarries
The total amount of the various kinds
OF work done. with the qua antilles OF