The citizen. (Frederick City, Md.) 1895-1923, 1910-05-13
G11n1 Runnx
OAS& SASA 90 ~cNeNa~a
G000 O@ONoS
New Road Nomenclature,


building is accumulated by the act;on
of the committee on asphaltic and hi;
luminous pavements, of the Orpsn;
cation of City Officials for standord ),
izing Paving Specifications, which was
formed recently at Chicago.
According to reports of discussion,
in the committee, and as partly shown
in the report, roads constructed frora
broken stone and bituminous mater
ials are separated into two classes
'bituminous macadam" and bitumin
Gus concrete" A bituminous mo-
adam road is defined as one con.
structed of broken stone of the vari.
Gus sizes commonly used in macadam
roads, with sometimes sand and erav
ell. to which has been applied bitu.
minous material by what is known as
the penetration method" i. e.. tbe
application of the bituminous mater.
ial, either hot or cold, to the surface
of the road after the stone has bean
placed in position and rolled.
A bituminous concrete road in die
ferentiation from bituminous mar.
adam road is defined as one built NJ
mineral aggregate. made IN NJ
broken stone, gravel and sand in vari.
Gus combinations. mixed with bitum.
inous material before being placed
in the roadway. This definition does
away with the necessity for describ.
ing road as one built by the mix.
ing method" when reference is made
to one where stone and bitumen haS, :
been mixed. either hot or cold. befS
being placed in position. 1t Il
thought that the segregation of
names will simplify methods of ey.
preston. so as to make them more
readily understood. and also to bring
them in accord with the facts.
1t is urged that road can only be
considered a macadam road, when
the stones are placed upon the
ground, rolled and a binder applied
Primarily this binder consists of
stone dust, washed into the crevices
by means of water. Obviously. to
fill up the interstices with bitumen
would make ''bituminous mac
adam" No mention is made by the
committee of a fact that this particu.
lar appellation is copyrighted by a
company making patented pavements
as one of its trade names"
Bituminous concrete, on the con-
trary. has nothing in common with
macadam in any way, except that the
same materials enter into its mineral
aggregate. Bituminous concrete. like
cement concrete, is, and must be.
made by thorough mixing of the
materials. to the end that the parti.
cles of the aggregate shall be thor.
oughly and entirely covered byfS7rT
cementing material, so that, NJ.
placed in position and compreAst
a dense and solid mass is formed po$
sessing the requisite qualifications 10,
road surface.
Such changes or developments IN
nomenclature are the inevitable re.
suits of the progress made possible
BY constant experimentation in the
science of highway construction.
vancement.-Good Roads Magazine
Support Good Roads Candidates.
1t is an understood ethical princt
pie, that whatever is worth having
is worth making an effort to secure
IN the more terse and expressive Ian.
guage OF the street. ''if you want
thing, go and get it,
The action of the Alabama Good .
Roads Association, at its recent CON !
vention at Montgomery. in appoint
ing a committee on legislative candt
dates, is case in point. The asso'
citation has decided upon a system Of
improved roads, with State aid. and
other progressive ideas. At the Mont
gome-y convention both Of the guber
Material candidates were invited "a
express their views on the subject
and they did 50 in manner which
indicated to the members of the as
ISOLATION that which ever may bs
elected the good roads measures will
be treated favorably BIZ the executive
AS -E=4S4@N II --GN ChG-. W---S-- a.
20 be elected in November, is as vel
an unknown quantity. The member
TO be elected are not even placed il
nomination. II IS the function OF this
legislative committee 10 ascertain The
sentiment OF every candidate on the
subject OF good roads, and report
same 10 the convention in Birming
ham in Oe.ober for action. Tie PLAN
iatimai;oa is that the association will
. assist in the election OF those wnel
favor good reads for Alabama, and 10
the defeat Of those who Go no..
Good roads advocates in some othei
States. who have long been endeaN
o-ing 70 secure better road laws iO'
theil commonwealths. might ind tns
example Of the Alabama assoeiaiiol
worthy OF elul2tiol.-Good Roaa'
Magazine
S~aal RarTalS