The Salt Lake herald. [volume] (Salt Lake City [Utah]) 1870-1909, 1890-04-05
ASPHALT OR GRANITE
The Question Agitating Com
mercial Property-Owners.
EACH HAS IT'S CHAMPIONS.
Stag Also Advocated 1t Is Used in the
Countries of the Old WOrld-A
Good Pavement.

InaG commercial street WILL soon be
paved is beyond doubt; the only question
now agitatiug the minds of the property
owners there is, "What material shall we
useW The committee who have the mat
ter under consideration have not yet re-
ported their conclusions. Mr.. Spencer
decision would be arrived at very soon
now Asked as to whether he thought
asphalt would be recommended, he said:
1.-The paving will be either asphalt or
stone, as it is the sense Of the property
owners on that now important thorough
fare that home material must be used. For
my part prefer stone, and believe Ihavc
Partially for granite. There are those
who object to granite, because, it is as
serted that it has tendency to
wear smooth. My experience, how
ever, leads me to DeIeVe that
the traffic on Commercial street Will not be
heavy enough to wear granite smooth-at
least not for MANY years to come. Such
pavement lasts for ten years in New York,
and 1T certainly should last tor at least
twenty here, and at the end of that time we
could afford To renew lt'
He PREFERS ASPHALT
Mr.. Arthur Pratt, who is also heavily in
terested ii Commercial street, has decided
preference for asphalt, claiming that it's
nolselesS character should recommend 1t
above all else. commercial will be an
of1ce street, or wholesale street, almost eX-
clusively," he said, land the use Of asphalt
insures quiet, whereas, if stone be used the
street Will necessarily be noisy one.
Asked If he were not aware that one of
fb1lfr Lax. a.
phalJ was that when once broken into it
was destroyed forever, that satisfactory
repairs Were out of the question, he said:
= he company whose works are located at
Thistle dlsclaim this and say they are
ready to enter into contract to lay the
asphalt and guarantee us against any
cracks or unevenness. They say, further,
That II the pavement is ever cut into and
they are employed to repair it, they will do
the work III sucn a manner that it will be
impossible to detect the patch.n
Being reminded that So far the asphalt
laid in Salt Lake was not the greatest sue
cess in the world, he replied: That is
| true, but this arises from the fact that the
proper proportion of materials was not
used and the work was done, in great
many instances, at least, by green hands,
Without experience"
THE USE OF STAG
There are others who advocate more
general use of Stag alleging that it is
cheaper than anything else, and more dur
able than any material save stone. In this
connection 1t may be stated that in Eng
land there We're introduced some years ago.
many ingenious methods for dealing with
Stag, and of these the various processes for
utilizing molten Stag by casting it into
blocks, the production of Stag sand and the
| ION of ri1l o,,1,
sand are the most important. In recent
times the casting of blocks has made i'm
| portant progress under the Tees Scoia
Brick company, chiefly in the production
| OF granltlne paving sets, in which the
cleaved, rough surface of the Stag brick, in
stead of the smooth, polished surface. is
exposed to wear. These blocks, being
non-porous, are very durable, and at Mid
dlesbrough, road surface exposed to
heavy traffic for eleven years, is still in
! good repair ~
The annealed Stag has also strong ATTN
ity for Portland cement and this fact has
been turned to practical account by the
Jones Annealed Concrete company, which
employs this material for paving purposes.
Broken Stag is also in use in various parts
OF the country for road making. Large
quantities of cement are also now made
| rom Stag sand, without the addition of
| VI SioLto OSL1iGLu, ~ Will ID DcI
cent. Of lime. In order to secure success
full cement, the mixture is ground in a
machine of spec al constructions termed a
'homogenizer.o The specific gravity of
this cement is very low as compared with
Portland cement, while the time occupied
IN setting is comparatively long. For pur-
| roses OF storing it also compares well
with Portland By exposure TO the air it
absorbs carbonic acid more rapidly than
does Portland cement, but it does not de
teriorate greatly in tensil strength by long
exposure. For works in water, owing tc
the closeness of its particles, the cement
appears 10 be particularly well adapted.
Crushed Stag can be used as concrete with
this cement for making sea walls. 1t has
been in use abroad for many years, but the
system of cement testing in England has
initiated against it having fair trial il
that country. In Germany, used alone Oh
mixed with Portland cement, it is held il
! great favor