The Richmond Virginian. (Richmond, Va.) 1910-1920, 1920-03-09
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WANTS

All interior webs shall have not less
than three-fourths inches in thick
ness Tiles shall be constructed with
at least forty-five per cent solid ma
teriai. If used for foundation work
shall have an absorption of not more
than eight per cent. II used expos ID
without stucco. shall have an ahsorp-
ton of not more than ten per cent.
If used with veneer on the outside
they shall have an average absocp-
Ntion of not greater than twelve per
cent, but no individual tile shall have
an absorption greater than fifteen per
cent.
The Building Inspector may re-
quire a test to be made or such blocks
before allowing same to be- placed in
the walls If in his judgment there be
any doubt as to whether such blocks
proposed to be used meet the re-
quirements above specified.
3. No hollow tile or terra Gotta wall
or partition shall be supported in part
or entirely by any wooden or other
eombustible beam, girder or post. No
chimney shall be constructed OF hol-
low tile or terra Gotta, unless said
chimney is lined from one end to the
other with hard burned terra Gotta
f1ue lining which is to be surrounded
with not less than four inches of hoi-
w" lltS bIoGk ol tiit sue VI
the building and eight inches of hol-
low tile block on the exterior side of
the building. Flue lining to be laid
In a solid bed of mortar. pointed in
side and out F'lue lining to be set
one joint ahead of the tile and to
break joints with the the. All spaces
except the flue and the fire place to
be filled solid with masonry
4. Hollow tile exterior walls shall
be the same thickness as now re-
CURED for brick walls, unless a spe-
ciaI tile of no greater absorption than
ten per cent is used il shall be veneer
ed on the outside with three fourths
inches thick Portland cement mortar.
veneer of four inches OF brickwork
may be figured as part of the thick
ness OF the wall provided the bricks
bond with the terra Gotta block every
twelve inches and a special terra totta
bonding block is used.
Architectural terra Gotta. or stone
handed or tied with metal wall ties
twenty four inches on center, verti-
caliy and horizontally may be used
as a veneer In place Of the Portland
cement mortar but may not be con-
sidered as part OF the thickness OF the
wall.
S Hollow tile may be used for in
terror partitions in the above men
toned buildings; however. such par
titions shall be al least three inches
thick If twelve feet in height four
inches thick if twelve to sixteen feet
In height and at least six inches thick
when sixteen to twenty feet In height.
and at least eight inches thick when
twenty TO twenty-six feet in height,
thickness Of partitions of height ex-
ceeding IS feet to be as may be APP
proved by the Building Inspector, but
when the length OF any partition ex
ceeds fifty feet. they shall be suffi-
GENTLY strengthened by cross walls,
partitions, piers and huttresses. sub
feet to the approval Of the Building
Inspector
g. All opening over three feet In
width In hollow tile walls shall have
'intels composed ~ steel, reinforced
concrete. or reinforced tile OF sum =
cient strength TO carry the load i'm
f, posed.
| Z. When the floor or roof load is
applied to said bearing or exterior
walls on concentrations OF two or
| more tons at one place solid pier OF
| brick. reinforced concrete. or con-
crete filled tile shall he used under
each concentration, each OF said piers
to be not less than twice the thick
ness OF the wall of which it is part
/ anu ho pitf snail bt EpstItti III tNCSSN
of 120 pounds per square inch of its
area.
| Whenever the floor slab or joists
rest on hollow terra Gotta wall COM
posed OF tile, with Yoids set verti-
ealiy. or wherever change in the
thickness of the wall occurs, the
course upon which the 1oists or slabs
rest, or upon which the thinner wal
rests. shall have the voids in the tiles
or the blocks in the course so bear
ing the load completely filled with
i Portland cement concrete, and 80 CON
structed that no ioist, timber or other
| material whatsoever shall bear OIL
| transmit a load To the wall without
| having bearing plate OF iron. first
quality hard brick, or terra Gotta. ol
/ concrete block ,filled or solidl un'
! der the same at the point where load
4, is transmitted: and further provided
| that in no case shall the area of thu
block to which the load is trans
mitted be less than double the area
of the beam or other material trans
hitting the load.
| s. All walls hereinhefore refs rred t.
shall be constructed in the following
Lmanner. blocks shall be set only IL
! Portland cement mortar, composed o.
not less than one part Portland cemen
\ mortar and three parts clean, sharI
!, sand. This mortar may be tempered
with one part lime paste. or hydrates
/ lime to eight parts of cement mortar
| Blocks shall be thoroughly bonded
one to another, both vertically ant
,longitudinaliy, and all joints fillet
with mortar. and when the tiles arr
set in the wall with webs vertical, tn,
II vertical web of one shall occur al
tnearly as practicable directly over th'