The Detroit times., 1911-02-23


sand. before any rsGoInr 11111
IL poured. a q no hHII' ~ .~..+. .
The superIntendent IN chorno e .
the work shaft mark q lnk - ~
the pouring OF -fhs dl6efeS6 - {
umDs. Eirders and iioor GIoDa
1 Sec. a. FREEzIN0 WUAIII><
Err, Generate work shall net ~.
permitted when the temper4fufo O.
less sufficient precautions are >11@r
ken 20 prevent. the copcFQ<e fF4I
frsszing after having been pn< O.
place $50 ~ ~ ~ ~<ra-<@ tA.| 4 <'/.
All forms must remain until -
,ss, IS. - s.h had that AZ frost
tanned It's permanent set. =, 80 -
No frozen material or meteriaj1 5
covered with ice shall be uee4
Sec. 20. HOT WEATHER. -ron<.
sssf sss dSsiPk ses Ms. slsss -
ter twice, daily, during the 0r9f
The broken stone. alag o. graxo<
must be thoroughly wet bsfore place.
In The mixer. 80 - ~. - - - - Is
Sec; a coNcHETE cot 211s
PROTECTION. The outer shell ~
tursi steel column. sSsii g. eeao.
sidered az q 1reproof Covering
only, and must not be included ~
determining the safe load 49,
In nreproonng . structur4l.
s ss.s or east ss,n assS Ss,rmS
r., sss s dsE'f n "a q. ~. ssss!sl
4 s s q. yELE , A ,ISEs SeNcsETn
FL FLOOR coNsThucTIoN; sWnS1
used for floors. the tile shall 20
sound; hare -!burpsd tile q pHl..c
The ooncrsts .5e.sss -sb~sl ~
p par 1is snd a. perfect iMps f2e
should concrete be nss1od o.
the. top OF the tile for compgoo-'
sive stress X must be poured ~
the same time h the 5ufstG aEo g.
4. must be Of the same mixture. a.
seax sss w tS ; "sss ss
the concretes--~-. 1890. 49, " .s.-,..'
See. "a. AioNoLrrH1c WALTZ,
AND PIERS, Menoiithic .ccucrs5S.
walls. constructed In places With
out reinforcement, shaff be thu
full thickness prescribed In thu.
ordinance for brick wallis, ana
Win steel cr"frcn ,reinforoSa5sl!k
tS6) per cent. of the thickneep ~
Quired for brick walls TT
Reinforcement shah NOT -
less than ope-Quarterg (1-t1- -
one I'd per cent: OF the aree e.
me such Such sse co1crsi. ssaIi g
thoroughly wet and properly
worked and an voidB fiiled. -9' q ~
Exposed, top. surfaces shall -
thoroughly cleaned and dampened.
before adding the next suocseding
sec a. INspECTIoN AND
TESTS. All reinforced con~
crete--- construction shall ~
performed 49,, under...s..t thu. - Doks.
sonal and constant super,
i g,:.SS O. who s snall 81
tory to the department OF buij9-
- IL loading tests are .considsred
necessary. by the, Department. 81
buildings the contractor must Be
and at his. own EXPENSE. to. make
test: on = panel or panels a. may !.
such tests shall be made after
esntering ha; been 3. L { ss9p enc me
loaded o1 over It's entire area. with
q uniformly. distributed load equal
TO twice the superimposcd load
for which the sfructure has beeu
designed and under such tcst the
Sss1sSn %Ist nos sses eart on 81
the span and the member must e-
turn 10 Its normal position after
the removal OF the load. ~ <
THE department-'of ~butidfng1
may require sworn. copies Of feetg'
on ALI cements used In any rs,n
to, have been made By. one. AZ H.
Standard Testing Laboratories DfiS
The department OF buiidipGs
may require special testss nadei,ot
any carload Of cepent or any POI or.
ts gh intended for reinforced con
OF eni EGns w sRsii h have reason %
question the full strength or quail
fly of such cement or other ma
terial. All such tests shall %
Testing Laboratory, and at the az.
pense OF the owner Of the cement
or other material 70 be tested.
SEQ .-25. ST r r ~ 9TH OF.
CEMENT BRIoUETTs The min .
strength Tor briquetts. one "a
inch square In section, shall be -
For Neat Cement.
"a hours In moist air.. z0o lb!. :,
waseIo. 500 lbs: 70 days cone day
In air. twenty seven In yAtsrl.
wv For Fol-; One I'D Part Cenient and
Three .ls) Parts standard sand.
days Gone ,p Gay q ss n Az I'm az Az e
In. air. twenty-seven In watsr)s
ARTICLE XIV. ...... s...s
Concrete Block Constrsctien.
Section I. WHERE ALLOWED.
- fr
ing blocks may be used for builds
ines four stories or less In height,
where the blocks are approved by
the Department OF Bu3idinBs.'
These blocks shall be made OF one
part standard Portland cement 10
not more than three psrts-ofsc clear
sharp sand and Ave parts OF grayeb.
crushed rock or other suitable ma
terial. The materials used SHAH
be free from dirt and othsr forsiGn'
matter. properly mixed and mantp-
ulated. so 4s
AGE OF hollow sPACE or,
BLOCKS USED FOR DIFFERENT
spaces OF any biockshsli mot en-
coed the following percentage OF
the total cubic contents contents Or tns
and ip no ease shall .ths, .fhicknsss
of any web OF any block be less
than one-duarter or the height OF
such block. go LEO ..a...-s.. =.
stcri s, . Let i End, sra. ssn
! s snS / sSSqs tS% .sw e.s~
sec. ). THICKNESS OF WALLS
The thickness OF walls for any,
building where concrete blocks are
used, shall be the same as that re-
a1 ses, io' -I fRe1S y OF sLocxs
where me face or thr wall cnfy -
10 be OF concrete building blocks.
and the backing OF brick, the. con-
crete blocks must be strongly eord4
"a TO thc brick with concrete or
brick headers. projecting four o.
inches INTO tile brick work, every
fourth t4th) course being header
course. or bonded with meta VAL
ties, spaced not TO exceed eighteen
1fSTirfrhe1- fm each direction ~----
Sec. S. MORTAR. All waiis
where concrete blocks ere used,