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Nov. 12, 19463
A_ E; TROIEL _
2,411,011
MEANS AND METHOD OF GROUTING
Filed Jan. 26, 1942
5 Sheets-Sheet 1
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INVENTOR.
ARTHUR E. TRO /EL
8%4 0.54%
A TTORNEK
Nov. 12, 1946.
A. E. TROIEL
2,411,011
MEANS AND METHOD OF GROU'I'ING
’
Filed Jan. 26, 1942
s Sheets-Sheet'2
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INVENTOR.
ARTHUR E. TRO/EL
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ATTORNEY
Nov. 12, 1946.
A. E. TROIEL
2,411,011
MEANS AND METHOD OF GROUTING
Filed Jan. 26, 1942
3 Shegts-Sheet 5 '
'
INVEN
ARTHUR E. THO/EL
‘WW
A TTORNEK'
2,411,011
Patented Nov. 12, 1946
UNITED STATES PATENT OFFICE
2,411,011
MEANS AND METHOD OF GROUTING
Arthur E. Troiel, Berkeley, Calif;
Application January 26, 1942, Serial N 0. 428,148’
5 Claims.
1
My invention relates to means and method of
grouting spaces developing between adjacent
walls of large concerete structures by their
shrinkage, and more particularly comprises an
improvement upon the subject matter of my pat
ent for Method of grouting, No. 1,628,933, of May
17, 1927.
1 Large concrete structures, such as dams or the
like, are according to present practice, construct
ed in units. Alternate units each extending the
complete thickness of the dam, are ?rst poured,
and when suf?ciently solidi?ed, intermediate
units are then poured. The units are formedv with
(Cl. 138—66)
2
tion into a grouting system to facilitate the build.
ing thereof.
‘
A further object of my invention resides in the
method of installing the grouting system to pre
clude clogging of pipes during pouring of con
crete units.
.
.
.
_
Additional objects of ,my' invention will - be
brought out in the following description of the
same taken in conjunction with the accompany
ing drawings wherein-
.
‘
v
-
Figure 1 is a fragmentary View, in perspective,
of a dam showing a portion of. a grouting. system
installation embodying the features of my inven
tion.
'
side walls of irregular outline to bring about an
Figure 2 is a View, in section, along the line
interlocking of the units in the ?nished structure. 15 2-—2
of Figure 1, with a pro-assembled section of
To accomplish the ?lling in of the space devel
the
system
shown in disassembled relationship to
oping between vany two adjacent units» upon
the system.
shrinkage of the same, a system of piping is built
Figures 3 and 4 ‘are complementary half pipe
into the structure between such units during the
sections, from which the vertical grout pipes are
20
construction of such structure, such piping being
so designed as to open into the inter-unit spacings
fabricated.
»
.
Figures 5A to 51), inclusive, are views in sec
and thereby enable liquid concrete, which: is
tion, illustrating. the manner of assembling the
poured into the piping, to ?ow between these units
half pipe sections in the fabrication of the ver
and ?ll in the spacing therebetween. Preferably
tical grout pipes, and the‘ manner in which they
at various elevations, the vertical pipes between
function.
such units are interconnected by horizontal pipes,
Figure 6‘ is a view depicting an expansible plug
to assure complete ?lling of the spacings between
utilized in the installation of the grout system,
these units.
in a concrete structure.
In accordance with. the teachings of my earlier 30' Figures 7 and 8 .are perspective views of ?xtures
patent above referred to, the pipes are formed of
utilized in the building of a grout system.
longitudinal half pipe sections, with longitudinal,
laterally extending ?anges and integrally formed
' Referring to the drawings for a complete and
detailed description of the features of my inven
anchoring rims. The two half pipe sections‘ are
tion, Figure 1 shows an outline of an incomplete
loosely held together by means of loops of wire
portion of a dam structure I, looking at the
through the lateral ?anges, with the free ends 35 irregular side wall of a unit. Such irregular wall
thereof twisted together.
‘
'
involves a number of spaced bays 3 and columns
My invention serves to improve upon the sys
5 for interlocking. with. an adjacent unit, to be
tem of my earlier patent, not only in the matter
subsequently poured. The portion of the grout
of facilitating the assembling of the grout pipes,
ing system illustrated therein comprises a plu
but in many other respects. For one thing, itis
rality of vertical pipes 7 extending up the bay
an object to provide an assembled pipe system in
walls 9 and column walls ll. The column wall
which the half pipe sections shall be held in close
pipes are interconnected at various levels by hori
contact during the pouring of the concrete units,
zontal pipes I3; and communication ?ttings I5
while at the same timeoffering little resistance to 45 serve to join the bay wall pipes to the horizontal
pipes of the system, thereby eiiecting communica
tion to all points in the grouting network between
concrete units, from any one pipe.
sure open communication between the inside of
The vertical pipes are designed to providecom
the pipes and the spacing developed between the
munication with the spacing. between. concrete
concrete units.
‘
' 50
units upon shrinkage of such units, and to this
A further purpose of my invention is to provide
end,’are formed of half pipe sections Ill and I9,
horizontal pipe elements formed of half pipe sec
the separation of such half pipe sections upon
shrinkage of the‘ concrete units, whereby to as
tions permanently locked together,
Another purpose of my invention is to provide
pro-fabricated assemblies adapted for installa
preferably of semi-cylindrical contour. 7 Each
half pipe section is formed with longitudinal,
. laterally extending ?anges 2i which are bent back
3
2,411,011
4
at an angle along an intermediate line thereon
.
The ?ttings, whether of T, L or + type, except
to provide anchoring rims 23. At spaced intervals
for their shape, are somewhat similar in construc
along each of the ?anges of one of the half pipe
tion and are formed of half pipe sections 45, each
sections IS, the ?ange is provided with U
provided with laterally extending ?anges 41.
notches, leaving a laterally directed tab 25 at each
Further description will be with reference to the
such interval in the plane of the ?ange. At cor
+ ?xture of Figure '1.
responding points along the ?anges of the other
A permanent locking of the two half sections
half pipe section l1, tabs 21 are struck therefrom,
is effected by the manner in which the pipes are
directed toward the semi-cylindrical portion of
joined to the ?xture. With respect to a vertical
the half section.
10 pipe 1, the end thereof is positioned into one
The assembling of the two half sections takes
place as follows: Prior to the pouring of a con
end of the ?xture, with its lateral ?anges 2|
The extent to
. ,between the ?xture ?anges 41.
crete unit, one of the half sections I1 is attached
which these vertical pipes may be inserted into
at the proper location, to the inside surface of
the ?tting openings may, if desired, be prede
one of the walls 29 of a form, and the concrete is 15 termined by rolling a groove into each vertical
then poured into this form and ?lls in around this
end of the ?tting at a properly spaced distance.
half pipe section and its anchoring rims 23.
Following the positioning of the vertical pipe in
To properly position and center the half pipe
the manner indicated, the anchoring rims 23
section in question, I have found it very con
may be snipped with a pair of shears, and
venient to provide a half round wood mold 3| 20 .vcrimped over the ?anges of the ?tting to hold
(Figure 5A) on the inside surface of the .form
components of the ?tting together. By then cen
Wall 29, of a size which will just about ?ll the
ter punching the crimped portions, the vertical
half section, and nail the half pipe section thereto.
A specially designed ai?xing means is provided
- pipe is conveniently restrained from sliding or
shifting in the ?tting.
for this purpose. It comprises a small plate 33 25
Where space exists, as at the corner 49 in the
having one edge curved to ?t the curvature of the
L type ?tting 4|, a portion of the ?ange of one
half pipe section. The plate is punched to provide
half section may be crimped to receive the ad
a pair of aligned offset openings 35 to receive
jacent portion of the ?ange of the other half
a suitable nail 31. After the concrete has
section at the time of assembly.
hardened su?iciently to retain itself and hold the 30
The horizontal pipes are attached in much the
half pipe section ?rmly anchored therein, the
same manner as the vertical pipes, but inas
form is removed, and the exposed nail points are
much as they differ structurally from the verti
snipped off. The other half section IQ of the
cal pipes, they will be described before indicat
pipe is then attached to that half section l1 which
ing in detail the manner of attaching the same
has already been ?xed to the wall of the ?rst 35 to the ?ttings.
unit. To accomplish this, the struck tabs 21 are
bent outwardly (Figure 5B) to a position normal
to the ?ange from which they are struck, and
the remaining half section of pipe is applied into
position with the bent-up tabs extending through 40
While the horizontal pipe structure might be
the same throughout the grouting-system, I have
found it convenient and more economical in time
and labor to pre-assemble certain portions of the
horizontal piping into assembled units, and in
the U-slots, following which, the protruding tabs
stall them as such. A unit 5| of this character
are creased over against the tabs 25 (Figure 5C).
is illustrated in Figure 2 and. includes a complete
In this manner the two sections of the vertical
pipe portion 53 formed of two half sections 55 and
pipe are securely held in close contact and in
51, and of a length adapted to reach across a
position for the pouring of the adjacent unit.
45 bay, a communicating ?xture [5 as illustrated in
At this point, it is of importance to note that
detail in Figure 8, and half pipe extensions 59
while the locking means just described permits
at either end adapted to be locked to comple
of positive holding of the two half sections of the
mentary half pipe sections 6| which have previ
pipe together and in close contact, it, desirably,_
ously been anchored to the face of a column.
does not oifer a great deal of resistance to the 50 The half pipe section 55 is formed with a lateral
separation of the half pipe sections during
?ange 63 (Figure 8), while the other, 51, is
shrinkage of the adjacent concrete units to which
formed with a lateral ?ange 65 which has been
the half pipe sections are held, and this is so, by
crimped to receive the other. These half pipe
reason of the fact that the tabs 25 will readily
sections may be assembled by sliding one over
bend out of the plane of the ?anges in which 55 the other.
they lie, and accordingly reduce the resistance to
The horizontal half pipe sections 6| to which
separation of the half pipe sections. Through
the unit assemblies are attached, are formed with
such separation, communication with the spac
lateral ?anges 61 (Figure 7) and an integral
ing between adjacent units of the concrete struc
anchoring rim 69 along each ?ange. Each an
ture, is established throughout the complete 60 choring rim, however, is crimped and provided
length of the vertical pipe. In a sense, therefore,
with an overhanging edge which is cut to form
the interlocking tab structure may be said to
a plurality of deformable locking tabs 1|. The
weakly hold the two half pipe sections in positive
extending half pipe sections 59 of the unit assem
engagement when assembled.
bly 5| are applied to the anchored half pipe
As the dam structure rises in height and it 65 sections 6| and locked thereto by turning the
becomes desirable to provide horizontal pipe con
locking tabs 1| down against the ?anges 65.
nections between these vertical pipes supported
The end of the pipe so formed is ?xed be
on the columns 5, I insert at those points in the
tween the halves of the ?xture 43 and held there
building up of the vertical pipes, a T, L or + ?t
in by bending the adjacent locking tabs 1| over
ting, indicated by reference numerals 38, 4| and 43
a ?ange of the ?xture, and then center punch
respectively, of Figure 1, depending on the loca
ing the same, if found desirable.
tion of the vertical pipe in any group, and join
The communication ?xture is illustrated in de
to these horizontal pipes, the remaining vertical
pipes, through the use of the special communica
tion ?ttings I5.
tail in Figure 8 as comprising a vertical T 13'
and a horizontal T 15, with the stem 11 of the
75 vertical T telescoping the stem 19 of the hori
2,411,011
5
'zontal T. Each T includes a pair of half T sec
tions 8! reinforced with integral gussets 33, and
?tted together by pro-crimping the edge of the
6
ing a plurality of longitudinally spaced laterally
directed tabs associated therewith, while said
other half pipe section has a plurality of corre
gussets of one half T section to receive the gus
spondingly located tabs, bent over adjacent tabs
sets of the other half T section.
of the ?rst half pipe section in interlocking asso
ciation with each other to weakly hold said half
By center
punching the inter?tting edges of the gussets,
the assembled half T sections may be secured to
gether against displacement. An external bead
pipe sections in pipe forming assembly.
3. A grouting system including vertical pipes,
each pipe comprising a pair of longitudinal half
85 rolled in the stem of the vertical T serves as
a stop in assembling the two T’s to form the com 10 pipe sections, one of said half pipe sections having
a laterally extending flange along each edge
munication ?xture ‘5. This ?xture is embodied
thereof, each of said ?anges being angularly bent
into the grouting system by ?tting the cross bar
along an intermediate longitudinal line thereof
portion of the vertical T to a vertical pipe in
to form an anchoring rim, said other longitudinal
much the same manner as the + ?tting previ
ously described, and ?tting the cross bar of the 15 half pipe section having similar laterally extend
ing ?anges and angularly bent anchoring rims,
horizontal T to the horizontal pipe 53, as one
and means holding said pipe sections together
would a half pipe section 55.
with their laterally extending ?anges in substan
A feature of my invention, aside from the as
tial contact, comprising a plurality of longitudi
sembling of the pipe components, resides in the
method of maintaining such pipes clean and free 20 nally spaced slotted openings through the later
ally extending ?anges of one of said half pipe
of concrete during the pouring of the concrete
sections, and a plurality of correspondingly lo
units. In the absence of any precaution, such
cated tabs on the laterally extending ?anges of
concrete might have a tendency to seep between
the other half pipe section, each of said tabs
the ?anges 2i and into the vertical pipes l. I
effectively preclude such possibility of in?ltration 25 passing through a slotted opening in the opposing
of material, by inserting a plug in the form of a
rather heavy piece of rubber tubing 81, closed
laterally extending ?ange and locking therewith.
4. A grouting system including vertical pipes,
each pipe comprising a pair of longitudinal half
and tapered at one end, into that section of a
pipe sections, one of said half pipe sections having
vertical pipe against which the concrete is to be
poured, and pump this tubing up to ?ll the in~ 30 a laterally extending ?ange along each edge
thereof, said other longitudinal half pipe section
terior of the pipe as indicated in Figure 5C.
To do
valve,
‘:pump
pose.
this, I mount a valve 89, such as a bicycle
in the open end of the plug, to which a
may conveniently be attached for the pur
Following pouring and setting of the con 35
crete about the pipe, the plug may be de?ated
to facilitate withdrawal of the same. The valve
having similar laterally extending ?anges, and
means holding said pipe sections together with
their laterally extending ?anges in substantial
contact, comprising a plurality of longitudinally
spaced laterally directed tabs lying substantially
in the plane of the laterally extending ?anges of
one of said half pipe sections, and a plurality of
correspondingly located tabs on the laterally ex
on to prevent the plug from settling down into a
40 tending ?anges of the other half pipe section,
pipe, when inserted therein.
each of said latter tabs passing through the op
It 'will be apparent from the above, that I have
89 or any suitable collar or handle may be relied
provided an improved grouting system and
posing laterally extending ?ange and engaging
the adjacent tab therein.
5. A grouting system including vertical pipes,
veach pipe comprising a pair of longitudinal half
the same in detail, the invention may be suscep
pipe sections, one of said half pipe sections hav
tible to changes and alterations, without depart
ing a laterally extending ?ange along each edge
ing from the principles involved. I accordingly
thereof, each of said ?anges being angularly bent
do not desire to be limited in my protection to the
along an intermediate longitudinal line thereof
details disclosed, except as may be deemed neces
50 to form an anchoring rim, said other longitudinal
sary by the prior art and the appended claims.
half pipe section having similar laterally extend
I claim:
ing ?anges and angularly bent anchoring rims,
1. A grouting system including vertical pipes,
and means holding said pipe sections together
each of said pipes comprising a pair of longitudi
nal half pipe sections, having a laterally extend- ' with their laterally extending ?anges in substan
ing ?ange along each edge thereof, and means for 55 tial contact, comprising a plurality of longitudi
nally spaced laterally directed tabs. lying substan
weakly holding said half pipe sections in a pipe
tially in the plane of the laterally extending
forming assembly comprising a plurality of inter
?anges of one of said half pipe sections, and a
locking tabs, certain of said tabs being integral
plurality of correspondingly located tabs on the
with one of said half pipe sections while the
others are integral with the other half pipe sec 60 laterally extending ?anges of the other half pipe
section, each of said latter tabs passing through
tion.
the opposing laterally extending ?ange and en
2. A grouting system including vertical pipes,
gaging the adjacent tab therein.
each pipe comprising a pair of longitudinal half
ARTHUR E. TROIEL.
pipe sections, one of said half pipe sections hav
method which ful?lls the objects of my invention
as previously set forth. While I have described
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