The Washington union., 1857-08-22
scHUNGGART


Road Fausaa al OidalBszy Gera.aay Tie Acting Com
missioner a Patents has received from the Department
Il State copy OF letter from Consul EIIing describing
the manner of paving roads In Didenburg with bricks
made ii peculiar clay which ii is suggested, may be
found in country and winch be made applicable
TO the same purpose in mEsy districts box contain
inr two ready burnt bricks unburnt bricks and
small quantity Of c5 in it, natural state, was sent to the
care of the collector OF the port Cd New York
Mr. Epvdng states that from the absence cd Stone all
the public roads in the rarshy districts Of lower Germany
and Holland are being paved with these bricks The
ryelents cities also made of them Roads in the
low and rnarshy country which formerly alto
eher npaasAte for vehicles during the wet Of
the wear sonetimes for months have become by
Of these bricks the finest in the world
The brick itself is made Like any other ordinary brick,
only requiring greater amount Of heat to cause the mass
10 melt and to form one solid and compact body, rock
like and is then able to resist great amount OF pressure
and friction,
The fuel used there fsr burning the brick is turf bi
luminous coal hut The burning Of the with coal
has only lately been introduced and found very praci
cable.
In making roads with these bricks the following plan
is pursued IN the clayey, marshy districts road is
formed l digging two deep and wide dthes some forty
feet apart The earth which Is gained In this way used
TO rase the road somewhat above the level Of the ai
cent grounds The road Itself is then prepared by dig
ging out about eighteen inches deep, much space
ii wanted to be paved about twenty flour Feet wide
leaving hank eight feet wide each
side The opening thus formed j. then filled in about
twelve inches deep with sand and the brick is
ia on edge 4tspla any san1ar that the road il consid
erahy raised In the iddethat is the road is built
convex as to allow the of freely leaving
the hanks each side higher than the road but making
drains through the f the passage of the wafer
After the road finished sand is always kept
the surface to III up the iteEstiees and TO prevent
uuch diree friction The banks each side of the road
having been left higher than the road itself to prevent
the wind frcr- blowing the sand OF small brush wood s
then planted gu the same for the still better protection of
the sanG-
The of these roads is considerable, tsix Thousand
thAlars German il@ from the high price OF the land
districts being aEore Asadssd dazars The
bricks in Germany from eleven TO twelve thaers
nile oaer bricks Of the hest quality used for building
purposes cost but seven 10 eight thaers mile. These
roads however, the cheapest in the end, costing
nothing for repairs except occasionally at first when the
beds sinks little The bricks out care is
taken to keep coarse sand constantly Them
The weight transported these roads in wagons
regulated BY the width ef the wagon wheel wagon
having wheel Of over six inches in width carry from
the lst Of NoTernbcr till the LIST of May 5000 pounds
from the LIST of May till the Ist of November II. eco
pounds The largest width wagon may load to il eleven
feet and two wagons cannot fellow each other in the
track