The Detroit times. [volume] (Detroit, Mich.) 1903-1920, 1910-10-05

fho dspartmsnt Of ovues.9s
may require sworn copies sSsrs
e. sil s s.":r.,. use: s1s IN .ask ss:ss
t 20 Ssv. eI Sssn made BY one % the
standsrd Tsssing Laborator!sn
THE department Of uoit3ines
may require special ,ss ar Any uoS.
any carload Of cement nv ., Other ma
tsptai INTENDED for reinforced con.
crsts work. when the depertmsnt
! OF buildings shall have s~sS ana.
1 question the full strensth OF sna.-
fly Of such cement sns ,s ., shall Be
y wsns NJ come acceptable standard
Tssting Laboratory. and at the sx.
pense OF the owner OF the cement
) or other material 70 ps 6THoF
, cEsM ss isRIdu i + Tn. min N:
i,num requirements for teheie
! strength Tor briQuetts. one VI
) Inch square In section. SHAH % -
For Neat Cement. 90. 49,,
"a hours in moist air, 2oV IDS.
water), 500 tbsl: Is days cone Gay
In air. twsnty-seven In ws'sr''
! ''' For One uD Part Cement and
1 Three CAY Parts standard sand.
DAYS tone day In air, SIX IN
water). rs lbs; as days zone oay
I In air. twenty-seven In ~s'0''
} ESQ lbs.
ARTICLE XIV.
Concrete Block Construction.
section 4 WHERE ALLOWED.
AND MATERIALS. Concrete ouiid-
ing blocks may be used for build
ings four stories or less In neikht.
where the blocks as, are apP nSIldins oy
1Se p b1psks shall be made OF one
part standard Portland cement TO
moi more than three parts or Clear
sharp sand and five parts or Hraxei.
crushed rock or other suitapie ma
teriai The materials used shali
be free from dirt and other foreign
matter. properly mixed and mahip-
Sec. 2; M MAJ NJ s PEEGEN OF
1i'ncKs USED FOR DIFFERENT
HEIGHT WALLS The hollow
spaces OF any block shall not ex-
, coed the following percentage OF
! the total cubic contents OF tne
and Ia no case shall the thickness
OF any web OF any block be less
than one-auarter of the height OK
, such block. -
Stories LIST. End. srd. Attn
] AND and : ssss .ss$ ass .sS
Sec. 8. THICKNESS OF WALLS.
, The thickness OF walls for any
, building where concrete blocks are
used. shall be the same as that re-
Sec. 4 FACING OF BLOCKS.
, Where the face OF the wall only Is
To be OF concrete building blocks
and the backing OF brick. the con-
ed to the brick with concrete or
brick headers. projecting four ca
inches into the brick work. every
fourth tth) course being heaaer
D course. or bonded with metal wall
, llsj inches in each direction.
Sec. S. MORTAR. All walls
. where concrete blocks are used
3 shall be laid up In Portland ee-
ment mortar. mixed with only suf-
) ficcnt lime to make the mortar elias
tic. The cement shall be capable
7 OF passing the minimum require.
3 ments OF Portland cement. as set
, forth In this Ordinance:
Q or BLOCKS. All concrete blocks
3 before being used In the construc-
I ton OF any building In the CITY OF
S Detroit. must have attained the
! no blocks shall be used. which at
) this age shall not have attained an
, average crushing strength of nj
0 teen hundred G.5oO pounds per
! square inch, and q minimum alb
3 eight CAS-, hours OF complete Inn
mersion OF fve co per cent. and in
S no case to exceed seven. t7p per
5 cent. Blocks cured In steam may
7 be used At the age OF three ss)
Sec. Z BEAN AND oIRpER
Q SUPPORTS. Wherever Orders.
5 beams or joists rest upon walls SO
: that there Is a concentrated load
8 sand 10000 pounds, these blocks
7 shall be made solid for at least
s twelve G2b inches below. and eight
. 81 inches on either side OF said
o girders beams or toists.
l Where such concentrated loads
2 exceed seventy-fve hundred (1.SoOJ
3 pounds the blocks shall be made
4 solid for ut least twenty-four t2D
s inches below and sixteen Q6)
& inches on either side OF said gir-
Z ders. beams or toists.
3 Where the concentrated load ex-
. ceeds ten thousand 100000 pounds.
0 the blocks shall be made solid for
l at least thirty-six (3sD inches be-
? low and twenty-four CAD inches
3 on either side OF the girders. beams
Sec. 5. PIERS AND BUTTREss-
. ES. All piers and buttresses that
3 support loads in excess of Ave 90
4 tons shall be built of solid con-
S crete blocks, from the foundation
8 up TO the point of application OF
Concrete lintels and stills. shall
9 be reinforced by iron or steel rods
o in manner satisfactory to the
/ Department OF Buildings. and any
2 Iintels spanning an opening over
3 four ca feet six CD inches In the
4 clear shall rest on solid concrete
6 blocks or solid wall.
Sec. TESTS. No concrete
2 building blocks shall be used In the
3 construction of any building In the
5 OF the said blocks shall have sub
6 mitted his product to the full test
7 required by the Department OF
s Buildings. and unless said test shall
Q na nf of the Department OF
/ Buildings. All samples for testing
2 shall be taken from such blocks
. actually going into construction
Sec. 10 TESTS TO BE As RE-
QUIRED HEREIN. The manufac-
8 turers or users OF concrete blocks
4 or either of them. on request from
8 the Department Of Buildings. shall
! made Of the cement used I'm making
such blocks or further tests OF the
completed blocks. at their own ex-
o pense and under the supervision
" Sec. ii. TIME LIMIT on AP-
prevails. No certificate OF APP
prevail on cement blocks. by the
4 Department of Buildings, shall be
considered In force more than SIX
(6) months.
Sec. IL. BRANDING REQUIRED
The brand or mark OF Identified
tion must be impressed In or other
wise permanently attached to each
Sec. 10. CONDEMNED BLOCKS
Any and all blocks. samples oil
which on being tested under the
direction OF the Department OF
buildings. fail to stand at twenty.
eight (2s) days. the test required
7 by this Ordinance, shall be marked
Condemned" by the manufactures
or user and shall be destroyed.
Sec. IL. License for the manufac'
ture OF sale OF.
Within sixty days from the pas
sage OF this ordinance every person