Telegram-herald., 1891-02-21
THE OBSERVER.


EazinseF.rg Saa batting Record ief
&c beasBt u tse IgLss aA2- II hsSALp
lsaiegs 4a4 property osasEs saa a.oag
streets seoa. - al4sEg9 EsP4afs-
gnek pAxesasats tog ro@a~~ys, SAys
tne EDzlaesi snd Bulld.ng record, SeIe
EGss .4sd n TIE Uuitea States IA
Chzr.essowa, ~ N&s IA sslz, aaa
a.ss.nlugtQa. L-no4s, "a lsia. >.nee
tnsu great advances bsve been made
IL theis nse. nsta the e1peflenee
gsigsd 81 pFseUces thsse pasemeats
aaye Besa grsstly uaFf3ved IA qaahsy,
aaa tseiF de has gsp.1iy spread over
: : de sseg.oa u eogulry.
Tne nIst s1o4gs - ass bTlek Tor psk-
ing parposss sege made ~ small cities
ana towns, were suitable stone Tor
tGoeE pasements could not be obtained
slthln reasonable distances, or Nhste
IS use would otheraise have been TOO
expensive Tor the means available, and
tho tirst trials were made With ordinary
bah1ing brick. Single courses OF brieA
OF edge, on gravel and sand founda-
ton, were used IA some eases, and IN
others a second foundation course OF
bricks laid fiatwlse Was added.
Hale, IN 1873. introduced his system,
| consisting OF u foundation OF one inch
boards, dipped IN tar. aud then layer
| OF sand, on which u single course or
/ bTlch WAS laid.
VITA the light traffic OF small places
/ even these cheap forms OF the pave
ment nave shown wonderful durability.
/ some OF them having been in use Tor
/ fifteen years or more. The superior
/ advantages of well made fire brick.
/ from It's greater strength, hardness
and toughness were, however, soon ap-
| preciated, and with It's substitution for
| ordAary brick, the use of the pave
ment has been gradually extending TO
larger cities. and to streets with COM
| paratNely heavy traffic. In loungs-
| town, OHIO, the bricks are required, toy
| the specifications. 10 have crushing
strength OF 1000 pounds per square
inch. In some makes of tire-orck
where the burning Is continued Tor
eight or ten days. 10 insure a uniform
quality and thorough vi,rificaton. the
strength runs up 10 10000 and even H.
600 pounds per square inch, approx
mating the strength OF the best build
| ing stones.
AS the pavement has been put 10
harder service, the foundation AS well
as the character of the brick has been
| improved, SO that now, where there Is
much traffic, foundation of eight
inches OF broken stone, well rolled with
a heavy steam roller. is first laid. On
this Is placed layer OF sand III which
TO bed the bricks, set as usual, on edge,
and the joints are well filled wlthshot
pitch and tar. In place of broken
stone, a layer of concrete has also been
used.
At Columbus, o., a conslde rahle
quantity of pavement has been LAID
with the Halwood block, made from
mica schist, and well vitrfie on q
broken stone or cement foundation, at
a cost of from s. % to $3.50 per square
yard. The contractors for this pave
ment have offered To lay 1t in IL similar
manner at Detroit for $3.50 per square
yard, with Il ten years guarantee for
business streets, and a twenty years
guarantee for suburban streets. A.
Stcubenville, o., single course or fire.
brick, on a sand foundation, has been
lald for 50 cents per square yard.
The price of the pavement, therefore,
can be graduated, using IN every case a
good quality of brick, according TO the
SIZE OF the town and the consequent
traffic 10 which the pavement Will be
subjected.
ii would seem that there is a great
future for brick pavement for streets OF
moderate traffic, and in places where
the greater cost of an asphalt pavement
could not be atforded-though beyond
question one of the very best in use
the principal drawback to its rapidly
increasing use is likely TO be the local
influence IL towns TO use brick made IN
the neighborhood, under the popular
cry of helping local industry, without
due regard to the quality and durabIl-
ity OF the brick, which IS such an I'M
portant factor IN the problem OF secur-
ing good brick pavements. This CIR
cumstance, together with the compare
tive ease with winch contractors with
little means or experience can BID Oh
J this kind of work, and the difficulty OF
rejecting the lowest bid by local auth
orIties, will, IN some places, under lax
supervisor, result IN favor OF brick
payements.
Lei Grand Rapids city authoritie:
make the most careful practical invest
Igatlons on ali pavements.
Let our street commissioner see &c
the cleaning OF crosSwalks.
West Brldge-st. should have asphalt
pavement. IL would add much To the
appearance OF that part of the city, III
crease business, and increase the value
Of property.
; Mouroe-st. sidewalks should he some
what Strengthened when the streets are
J paved.
spid Face.
Mr.. Depew's genial and popula, pr