BACKGROUND OF THE INVENTION
1. Field of the Invention
[0001] The present invention relates to an adjustable, universal screed guide/control joint
clip used in the positioning of screed guide/control joints, which in turn are utilized
in the placement of concrete in concrete slabs, the screed guides provide precise
placement of the concrete in concrete slabs, the adjustable, universal screed guide
clip allowing for exact adjustment of the height of the screed guide, as well as allowing
the installation of the screed guide in applications heretofore denied.
2. Description of the Prior Art
[0002] The pouring and use of concrete is a fundamental construction task in the trade.
It is referred to as the placement of concrete. It is often required in the installation
of sidewalks. It is placed over steel decks to provide the flooring base for multi-story
skyscrapers; it is placed for the flooring of large warehouse or industrial structures;
and it is placed to form the basis for water retention basins and reservoirs. It further
provides the basis for highway surfaces and airport runways.
[0003] There are two essential joints associated with concrete slabs. The first joint is
commonly referred to as the expansion joint and passes completely through the concrete
slab. The expansion joint is designed to allow for the expansion and contraction of
the concrete slab in response to ambient temperature conditions. The second joint
is commonly referred to as the control joint. The control joint is a linear impression
formed in the concrete slab after its placement. It does not extend through the concrete
slab. The purpose of the control joint is to control the direction of any cracking
which may appear in the slab over time. Typical control joints would run transversely
on the slab from one edge to the other. Control joints would normally be formed by
dragging a trowel across the poured concrete while it was still wet to form the linear
impression, and in some instances, diamond saws would be used to form the control
joints after the concrete slab had hardened.
[0004] In the prior art, any handy material would be utilized to form the peripheral outline
or frame of the concrete slab and any associated expansion joints. The concrete would
be placed within the frame and leveled using a screed which would be dragged across
the surface of the wet concrete while resting on at least two adjacent or abutting
framing members in order to achieve a planar level slab. The framing members upon
which the screed rested while leveling the surface of the concrete slab are referred
to in the trade as screed guides.
[0005] European building codes require a ten year guarantee with respect to poured concrete
slabs. No such guarantee is required or exists in US building codes. This dichotomy
has led to greater technical advances in Europe with respect to the pouring of concrete
slabs. In particular, a screed guide profile has been developed in which the screed
guide itself also forms the control joint for the concrete slab. The use of these
combination screed guide/control joints presents some great advantages in the area
of placement of concrete slabs and in the life expectancy of the concrete slabs. However,
the accurate placement of the screed guide/control joints sometimes proved laborious
and time consuming.
[0006] Initially, some screed guide/control joints were positioned by pouring small mounds
of concrete in a desired linear direction before positioning of the screed guide/control
joint. The screed guide/control joint would then be positioned on the small mounds
of concrete to the desired height, and the mounds of concrete would be allowed to
set. Once the mounds of concrete had set, securing the screed guide/control joint,
the concrete slab would be poured to the height of the upper edge of the screed guide/control
joint. This method became laborious and time consuming since normally 24 hours would
have to elapse from the time that the mounds of concrete were poured until the time
that the slab could be poured to allow for the mounds to set and position the screed
guide/control joint.
[0007] The method of installing screed guide/control joints evolved to the use of rebar
stakes, and clips. The section of rebar would be pounded into the ground to an estimated
height, each rebar being positioned approximately two feet apart. Clips would then
be installed on the top of the rebar, the upper portion of such clips presenting a
dove tail channel into which a preformed plastic screed guide/control joints having
a pyramidal cross section would snap fit. The worker would hand adjust the depth of
the rebar in order that the clips were at the same height so that the screed guide/control
joint presented a level upper edge for placement of the concrete slab. Such a method
is for example described in document
US2007/0256380. This method presents problems when a vapor barrier is utilized, since the rebar
stakes will pierce the plastic sheets or other types of vapor barriers and degrade
their performance. It also presents a problem when concrete flooring is being placed
on a steel deck as is done in the construction of multi-story buildings or skyscrapers.
The rebar stake cannot be driven into or through the steel deck.
[0008] It presents an additional problem in those instances where concrete slabs are being
placed onto compacted gravel subgrade or ground. Some installations call for void
forms to be placed beneath the concrete slab at various locations to compensate for
the expansion and contraction of the ground due to expansion and contracting soil
conditions. These voided areas are formed utilizing cardboard housings which are positioned
prior to the placement of the concrete slab, the slab being placed essentially over
the cardboard encapsulating the cardboard housing between the concrete and the ground.
The void area under the cardboard housing and in contact with the ground provides
compensation for expansion and contraction of the ground. The cardboard housing over
time will eventually deteriorate, but the void will remain. The use of the rebar stakes
or any stake on such a slab would pierce the cardboard housing and obviate its desired
purpose of forming a void between the poured concrete and the ground.
[0009] An additional problem associated with the current installation of screed guide/control
joints is that the profile of the screed guide/control joint varies depending on the
thickness of the concrete slab. Two sizes of screed guide/control joint profiles are
currently used for screed guide/control joint placement in various thicknesses of
concrete slabs. A large profile screed guide/control joint is utilized for placement
of six inches or greater, and a small profile screed guide/control joint is used for
placements of lesser thickness. Since the size of the screed guide/control joints
vary, the installer must inventory a quantity of clips that will fit the two profiles.
[0010] This screed guide profile and the advantages thereof would find greater acceptance
both in Europe and the US if the aforesaid disadvantages could be overcome. Applicant's
system addresses and overcomes each disadvantage.
OBJECTS OF THE INVENTION
[0011] An object of the present invention is to provide a novel screed guide/control joint
clip system to accelerate and facilitate the accurate placement of the screed guides
and limit the use of different sizes of clips.
[0012] A further object of the present invention is to provide for a novel screed guide/control
joint clip system which allows for the facile and exact adjustment of the height of
the screed guide/control joint clip and the screed guide/control joint.
[0013] A still further object of the present invention is to provide for a novel screed
guide/control joint clip system which permits the use of the system on substrates
which heretofore would not accept the system.
[0014] A still further object of the present invention is to provide for a novel screed
guide/control joint clip system which incorporates a base member securable to a substrate
of the type which did not previously permit the usage of a screed guide/control joint.
SUMMARY OF THE INVENTION
[0015] An adjustable, universal screed guide/control joint clip for positioning screed guide/control
joints utilized in the placement of concrete in concrete slabs, the adjustable universal
screed guide clip allowing for the exact adjustment of the height of the screed guide
attached thereto for the placement of the concrete slabs, the adjustable universal
screed guide clip allowing the installation of the screed guide in applications heretofore
not allowable, the adjustable, universal screed guide/control joint clip capable of
accommodating both large and small profile screed guides.
BRIEF DESCRIPTION OF THE DRAWINGS
[0016] These and other objects of the present invention will become apparent, particularly
when taken in light of the following illustrations wherein:
FIG. 1 is a perspective view of a screed guide/control joint utilized with the present
invention;
FIG. 2 is a perspective view of the screed guide/control joint of FIG. 1 illustrating
a prior art method of installation;
FIG. 3 is an exploded perspective view of the screed guide/control joint of FIG. 1
and a second prior art method of installation;
FIG. 4 is a top view of the screed guide/control joint clip of the present invention;
FIG. 5 is an end view of the screed guide/control joint clip of the present invention;
FIG. 6 is a side view of the screed guide/control joint clip of the present invention;
FIG. 7 is a perspective view of the threaded cap rebar engaging member;
FIG. 8 is a cross sectional view of the screed guide/control joint clip and threaded
cap rebar engaging member along Plane 8-8 of FIG. 4;
FIG. 9 is an end view of the screed guide/control joint clip of the present invention
in orientation for receipt of a low profile screed guide/control joint;
FIGS. 10A and 10B are bottom views of the threaded cap rebar engaging member illustrating
two embodiments of the orientation of internal ribbing to accommodate various diameter
rebar;
FIG. 11 is a top view of a base member allowing use of the screed guide/control joint
clip system on vapor barriers, steel substrate and void forms;
FIG. 12 is a side view of the system installed on a steel substrate;
FIG. 13 is a top view of a second embodiment of a screed guide/control joint clip
of the present invention;
FIG. 14 is an end view of the second embodiment of the screed guide/control joint
clip illustrated in FIG. 13 ;
FIG. 15 is a top view of a third embodiment of a screed guide/control joint clip of
the present invention ;
FIG. 16 is an end view of the third embodiment of the screed guide/control joint clip
illustrated in FIG. 14 ; and
FIG. 17 is a side view of a system including the third embodiment of FIGS. 15 and
16, installed on a steel substrate.
DETAILED DESCRIPTION OF THE INVENTION
[0017] FIG. 1 is a perspective view of a screed guide/control joint utilized in the present
invention. The screed guide/control joint 10 is linear in shape generally coming in
3,7 to 4,9 m (12 to 16 foot) lengths to be cut in the field to the desired length
required. It is formed of extruded polymer and has a base portion 12 comprised of
a bottom wall 14, two opposing side walls 16 and 18, angled upper walls 20 and 22
terminating in an upwardly extending tower portion 24, triangular in cross section
formed by two angled side walls 26 and 28 and terminating in an apex which forms the
upper edge 30 of screed guide/control joint 10. The interior 32 of the base and tower
portions are formed during the extrusion process with cross member ribs 34 for support.
Additionally, the angled side walls 26 and 28 of tower portion 24 may also be formed
with longitudinal parallel ribs 36 to aid in the setting process when screed guide/control
joint 10 is encapsulated in concrete.
[0018] In most instances, the bottom wall 14 of the base member is not planar, but rather,
slightly flared downwardly at its side walls 16 and 18 to aid in its snap fitting
with a screed guide/control joint clip as described hereafter.
[0019] It should also be noted that FIG. 1 illustrates the general shape of the screed guide/control
joint used with the present invention, however, minor variations, particularly with
the longitudinal ribs on the exterior of the tower, may vary from manufacturer to
manufacturer. It should also be pointed out that screed guide/control joints generally
are formed in two sizes, large profile and small profile. The small profile screed
guide/control joints are used with concrete slabs up to 15cm (six inches) in depth,
and the large profile screed guide/control joints are used for slabs in excess of
15 cm (six inches ) in depth. The large profile and small profile screed guide/control
joints are similar in all aspects except their dimensions. A typical large profile
screed guide/control joint would have a base portion with slightly over 5 cm (two
inches) and a tower portion height of approximately 8 cm to 9 cm ( three to three
and a half inches), whereas the small profile screed guide/control joint dimensions
would be approximately half those of the large profile screed guide.
[0020] FIG. 2 is a perspective view of screed guide/control joint 10 of FIG. 1 illustrating
its setting with respect to a prior art method of installation. In this method of
installation, small mounds of concrete 50 are poured in a linear orientation approximately
0,6 m ( two feet) apart so that the base portion 12 of the screed guide/control joint
may be set on these concrete mounds and the mounds allowed to harden and secure the
screed guide/control joint. Once set, the concrete slab would be placed, encapsulating
the entire length of the screed guide/control joint to the height of its upper edge
30. Depending upon the area of concrete to be placed, a plurality of screed guide/control
joints would be set in this manner, the desired distance apart in accordance with
code, in order to define the area of concrete to be placed. This method of setting
the screed guide/control joint is very time consuming, laborious, and requires exacting
measurements to ensure that upper edge 30 is at a consistent height along the length
of the screed guide/control joint and on all similarly situated screed guide/control
joints.
[0021] The desire is to obtain a concrete slab of some dimension which has a uniform planar
upper surface. To that end, the initial concrete mounds 50 that are placed must be
of the desired height and the screed guide/control joint must be set at the accurate
height, as well as all parallel and abutting screed guide/control joints to insure
that the upper edge 30 of all of the screed guide/control joints utilized to define
the concrete slab are at the same height. This can best be described as a hit or miss
method of obtaining a uniform planar concrete slab.
[0022] FIG. 3 is an exploded perspective view of the screed guide/control joint of FIG.
1 and an alternative method for installation developed in the prior art. In this configuration
a plurality of lengths of rebar 60 are driven into the underlying substrate 62 to
a desired height 64. The rebar is installed in a linear orientation 5cm ( two feet)
apart. A screed guide/control joint clip 66 is then frictionally positioned on the
upper extended end 68 of the rebar 60. The screed guide/control joint clip 66 comprises
a tubular base 70 which slidably engages the upper end 68 of the rebar 60. Unitarily
formed to the upper end of tubular base 70 is a dove tail channel 72. Dove tail channel
72 is dimensioned to the width of the base portion 12 of screed guide/control joint
10.
[0023] The installer would adjust the height of the sections of rebar 60 by hand to insure
that the screed guide/control joint clips 66 were all at the same height. The screed
guide/control joint would then be snap fit into the dove tail channel 72 of the screed
guide/control joint clip, thus securing the screed guide/control joint at a desired
height above the substrate 62. The installer would take measurements to insure that
the upper edge 30 of all screed guide/control joints 10 utilized and placed in order
to place the concrete slab were all at the same height. The concrete would then be
placed encapsulating the rebar 60, the screed guide/control joint clip 66 and the
screed guide/control joint 10 to the height of its upper edge 30. Sections of the
concrete slab would be placed in succession between each screed guide/control joint
so positioned.
[0024] This method, while an improvement over the use of small poured concrete mounds, still
required checking by the installer to insure that the upper edges 30 of all of the
screed guide/control joints 10 were at the same level, and required multiple adjustments
of the height of the rebar, since the screed guide/control joint would not snap fit
and lock into the dove tail channel 72 of the screed guide/control joint clip 66 unless
all screed guide/control joint clips 66 were at the same height.
[0025] Applicant's screed guide/control joint clip provides several advantages over the
prior art. First, it can accommodate both large profile and small profile screed guide/control
joints in one clip assembly. Secondly, its construction allows for a firm grip on
both European rebar which measures approximate 12 mm in diameter, and US rebar, which
is slightly larger at 12.57 mm. Thirdly, the interior member which is exteriorly threaded
easily allows for the accurate height adjustment of the screed guide/control joint
clip to insure that the upper edges of all screed guide/control joints are level when
installed on the screed guide/control joint clip. Lastly, the incorporation of a base
support member cooperable with the rebar, allows for the use of screed guide/control
joints where vapor barriers and liners are initially installed over the substrate,
allows for the use of Applicant's screed guide/control joint clip in conjunction with
screed guide/control joints on steel substrate for multi-story skyscrapers, and allows
for the use of screed guide/control joints on void forms. All of these areas were
previously denied the use of screed guide/control joints because of the required installation
methods previously discussed.
[0026] FIG. 4 is a top view of the screed guide/control joint clip of the present invention,
FIG. 5 is an end view of the screed guide/control joint clip of the present invention,
and FIG. 6 is an opposing end view of the screed guide/control joint clip. The screed
guide/control joint clip 80 cooperates with a threaded cap rebar engaging member 82
illustrated in FIG. 7, which will be more fully discussed hereafter. Screed guide/control
joint clip 80 comprises a tubular member 84 having an internal bore 86, internal bore
86 having a single threaded member 88 cooperable with threaded cap rebar engaging
member 82 as more fully discussed with respect to FIG. 8 hereafter. Unitarily formed
with tubular member 84 is a first dove tail channel member 88 having a base portion
90 and two opposing upstanding side walls or prongs 92 and 94, upstanding side walls
or prongs 92 and 94 being slightly inwardly protruding at their upper terminus 96
and 98 to define a channel 100 for engagement with the base member 12 of a large profile
screed guide/control joint 10 snap fit there between.
[0027] A second inverted dove tail channel member 102 is unitarily hingeably secured 106
to an open edge 104 of first dove tail channel member 88. Second, inverted dove tail
channel member 102 in the configuration illustrated in FIGS. 4, 5, and 6 has a base
member 108, and depending outer side walls or prongs 110 and 112. Second inverted
dove tail channel member 102 also has the two inner side walls or prongs 114 and 116
spaced apart from outer side walls or prongs 110 and 112 depending downwardly and
terminating with a nubbed apex similar to the side walls of first dove tail channel
member 88. The distance between the downwardly depending inner side walls or prongs
114 and 116 corresponds to the width of the base of a small profile screed guide/control
joint.
[0028] Referring to FIG. 9, which is an end view of the screed guide/control joint clip
of FIGS. 4, 5, and 6 with the second dove tail channel member 102 in hinged relationship
with the first dove tail channel member 88. The flexible hinge 106 allows for second
dove tail channel member 102 to be rotated 180 degrees such that its outer side walls
or prongs 110 and 112 frictionally lock in a snap fit manner with the side walls or
prongs 92 and 94 of first dove tail channel member 88. This positions the inner side
walls or prongs 114 and 116 of second dove tail channel member 102 in a central upwardly
extending position converting the screed guide/control joint clip 80 from one accommodating
a large profile screed guide/control joint to one which can now accommodate a low
profile screed guide/control joint, thus the elimination of two separate sized clips
for the installation and pouring of concrete.
[0029] It will be noted that the base members 90 and 108 of first and second dove tail channel
members 88 and 102 are not planar, but are slightly arcuate to accommodate the contour
of the base member 12 of either a large profile or small profile screed guide/control
joint. Additionally, the base members 90 and 108 of first and second dove tail channel
members 88 and 102 may also be formed with apertures 120 and 122 to aid in the molding
process.
[0030] FIG. 7 is a perspective view of threaded cap rebar engaging member 82. FIGS. 10A
and 10B are bottom views of two embodiments of threaded cap rebar engaging member
82. Threaded cap rebar engaging member 82 is tubular having an exterior threaded surface
130 and an interior surface 132 having a plurality of radial or non-radial ribs 134
protruding inwardly from inner surface 132. The ribs 134, being non-radial in orientation
with respect to tubular threaded cap rebar engaging member 82 allows for threaded
cap rebar engaging member 82 to be utilized with respect to both European and United
States rebar dimensions, thus allowing for threaded cap rebar engaging member to be
snap-fittingly engaged over an end of either type of rebar. Radial ribs may also be
used but sized accordingly for the size of rebar utilized.
[0031] FIG. 8 is a cross sectional view of the screed guide/control joint clip and threaded
cap rebar engaging member along Plane 8-8 of FIG. 4. Screed guide/control joint clip
80 has a single internal thread 88 cooperable with the external threading 130 on threaded
cap rebar engaging member 82 to allow for the height adjustment of the screed guide/control
joint clip 80 once the threaded cap rebar engaging member 82 has been snap fit over
an end of rebar. This allows screed guide/control joint clip 80 to be accurately rotated
on threaded cap rebar engaging member 82 to achieve the desired height.
[0032] The screed guide/control joint clip system described thus far eliminates the need
for concrete mounds to be poured and measurements to be taken with respect to the
placement of screed guides on such concrete mounds. It also eliminates the eyeball
measurements and adjustment of the depth of rebar in the substrate in order to achieve
equality in screed guide levels. The addition of a base member to a system previously
described, also allows for the use of the system in those instances where a liner
or vapor barrier is required over the substrate or where the substrate is steel, and
also where conditions require that void forms be provided in the concrete slab for
the underlying expansion and contraction of the substrate.
[0033] FIG. 11 is a top view of a base support member 140 designed to be utilized with the
screed guide/control joint system, and FIG. 12 is a side view of the base member with
the screed guide/control joint clip system installed on a steel substrate. The base
member 140 comprises a planar base 142 of any particular geometric shape, but illustrated
as being circular in FIGS. 11 and 12. Centrally positioned on planar base 142 and
unitary therewith is upstanding tubular member 144 having an outer side wall 146 and
an inner side wall 148 there being a plurality of radial or non-radial rib members
152 extending inwardly from the inner side wall 148. Positioned about the planar base
142 would be a plurality of apertures 150 extending through planar base 142. Additionally
there may be a central aperture 153 through planar base 142 positioned within tubular
member 144.
[0034] In this configuration, an appropriate adhesive 156 would be applied to either the
substrate 158 or the undersurface 160 of planar base 142 and base member 140 would
then be positioned on the substrate 158. The application of the adhesive 156 would
be such that it would adhere the under surface 160 of base member 142 and to the substrate,
but would also pass through or ooze through the various apertures 150 and 153 in the
planar base so as to extend to the upper surface of planar base 142 thus insuring
firm adhesion of base member 140 to the substrate 158, be it steel, vapor barrier,
or cardboard void forms.
[0035] An appropriate length of rebar 60 would then be engaged in tubular member 144 and
rigidly maintained by the rib members 152 extending therein. The installer would secure
base members 140 in this fashion at the required distances on the substrate. The installer
would then snap fit a threaded cap rebar engaging member 82 onto each piece of rebar
60, and threadedly secure and adjust screed guide/control joint clip 80 to the threaded
cap rebar engaging member 82 such that the heights of the base members 90 or 108 of
the dove tail channel members 88 or 102 would be equal. Screed guide/control joints
would then be snap fit and installed to the screed guide/control joint clips 80 and
concrete would be placed encapsulating the base member 140, the rebar 60, the rebar
engaging member 82, the screed guide/control joint clip 80, and the screed guide/control
joint 10.
[0036] FIG. 13 is a top view of a screed guide/control joint clip 80B similar to the screed
guide/control joint clip 80 illustrated in FIG. 4, and FIG. 14 is an end view of screed
guide/control joint 80B from end. Screed guide/control joint clip 80B has a similar
tubular member 84, having an internal bore 86, internal bore 86 having a single threaded
member cooperable with the threaded cap rebar engaging member 82 as discussed with
respect to FIG. 8. Screed guide/control joint clip 80B also has an identical first
dovetail channel member 88.
[0037] A second dovetail channel member 102B is unitarily secured to open edge 104B of first
dovetail channel member 88 by means of a flexible hinge arm 106B. Second dovetail
channel 102B is identical to the second dovetail channel member 102 as illustrated
in FIG. 4 with the exception that it is not inverted. Flexible hinge arm 106B is of
sufficient length to allow second dovetail channel member 102B to be twisted or turned
180 degrees in a plane allowing for outer side walls or prongs 110B and 112B to be
snap fit or inserted into first dovetail channel member 88 such that the two inner
side walls or prongs 114B and 116B are in position for receipt of a small profile
screed guide. Flexible arm 106B eliminates the hinge 106 illustrated in FIG. 4 and
presents an alternative manner for the production of the screed guide control joint
clip.
[0038] FIG. 15 is a top view of a screed guide/control joint clip 80C similar to the screed
guide/control joint clips 80 and 80B, and FIG. 16 is an end view of screed guide/control
joint clip 80C from end. Screed guide/control joint clip 80C has a similar tubular
member 84, having an internal bore 86, internal bore 86 having a single threaded member
cooperable with the threaded cap rebar engaging member 82 as discussed with respect
to FIG. 8. Screed guide/control joint clip 80C also has an identical first dovetail
channel member 88, said first dovetail channel member 88 having a base portion 90
and two opposing upstanding side walls or prongs 92 and 94 such as described above.
[0039] A second dovetail channel member 102C is secured to first dovetail channel member
88. More specifically, first dovetail channel member 88 and second dovetail channel
member 102C are made of a single piece.
[0040] Second dovetail channel member 102C comprises two inner side walls or prongs 114C
and 116C, similar to the two inner side walls or prongs 114, 116 and 114B, 116B, respectively
of clips 80 and 80B. The two inner side walls or prongs 114C and 116C of second dovetail
channel member 102C extend from the base portion 90 of first dovetail channel member
88, in the same manner as inner side walls or prongs 114, 116 extend from the base
member 108 of clip 80. The two inner side walls or prongs 114C and 116C are in position
for receipt of a small profile screed guide/control joint, as described above.
[0041] FIG. 17 is a side view of screed guide/control joint clip 80C snap-fittingly engaged
with a large-profile screed guide/control joint 10B, similar to the screed guide/control
joint 10 described above.
[0042] The large-profile screed guide/control joint 10B is linear in shape, formed of extruded
polymer and has a base portion 12B comprising a bottom wall 14B, two opposing side
walls 16 and 18, angled upper walls 20 and 22 terminating in an upwardly extending
tower portion 24B, said tower portion 24B being of triangular cross-section terminating
in an upper linear edge 30B. The base portion 12B and tower portion 24B comprise internal
cross member ribs 34 for support.
[0043] The shape and dimensions of the base portion 12B are designed so that said base portion
12B can be snap-fittingly engaged with screed guide/control joint clip 80C, so that
the bottom wall 14B is in contact with the base portion 90 and the opposing side walls
16 and 18 are respectively in contact with the two opposing upstanding side walls
or prongs 92 and 94.
[0044] Moreover, the bottom wall 14B of the base portion 12B comprises two longitudinal
grooves 214, 216. Each of the grooves 214, 216 is designed to receive one of the inner
side walls 114C and 116C when base portion 12B is snap-fittingly engaged with screed
guide/control joint clip 80C as described above.
[0045] Large-profile screed guide/control joint 10B and screed guide/control joint clip
80C can be installed on threaded cap rebar engaging member 82, snap-fitted on a length
of rebar 60 engaged in tubular member 144 of base support member 140, in a similar
manner as described above with respect to FIG. 12.
[0046] Therefore, while the present invention has been disclosed with respect to the preferred
embodiments thereof, it will be recognized by those of ordinary skill in the art that
various changes and modifications can be made without departing from the scope of
the appended claims.
1. An adjustable clip for positioning and leveling a large-profile or small-profile screed
guide/control joint (10, 10B) for the placement of concrete, said screed guide/control
joint being formed of extruded polymer and having a base (12), an upward standing
ridge (24) of triangular cross-section terminating in an upper linear edge (30),
said large-profile screed guide/control joint (10, 10B) being suitable for use in
the placement of concrete slabs of a depth superior to 15,24 cm,
said small-profile screed guide/control joint being suitable for use in the placement
of concrete slabs of a depth inferior or equal to 15,24 cm,
said adjustable clip comprising :
- an exterior threaded tubular cap member (82) having a plurality of internal ribs
(134), said exterior threaded cap member being frictionally engageable with an upstanding
end portion of rebar (60) positioned in a substrate ;
- a clip member (80, 80B, 80C) having a tubular base (84) having an internal thread
rotatably engageable with said exterior threaded cap member, said tubular base having
a unitarily formed first dove-tail channel (88) formed on an upper surface, said first
dove-tail channel being formed of a base (90) and opposing upstanding edges (92, 94)
defining said dove-tail channel, said dove-tail channel being dimensioned (100) to
snap-fittingly receive a base (12) of a large-profile screed guide/control joint;
a second dove-tail channel (102, 102B, 102C) being secured to said base of said first
dove-tail channel, said second dove-tail channel having opposing interior upstanding
prongs (114, 116) dimensioned to snap-fittingly receive a small-profile screed guide/control
joint;
a plurality of said exterior threaded tubular cap members and clip members being suitable
to be arranged on upstanding end portions of said rebar, in a linear orientation to
a substrate, in order to snap-fittingly receive a screed guide/control joint length
of either large profile or small profile.
2. The adjustable clip (80, 80B) according to claim 1, wherein said second dovetail channel
(102, 102B) secured to said base of said first dovetail channel has a base (108) and
opposing upstanding edges (110, 112) snap-fittingly engageable in said first dove-tail
channel.
3. The adjustable clip according to claim 2, wherein said second dovetail channel secured
to said base of said first dovetail channel is hingeably (106) secured to said base
of said first dovetail channel with said opposing upstanding edges and opposing interior
upstanding prongs oriented downwardly, said second dovetail channel being hingeably
rotated 180 degrees to engage said first dovetail channel.
4. The adjustable clip according to claim 2, wherein said second dovetail channel secured
to said base of said first dovetail channel is secured by an elongate flexible hinge
arm (106), said second dovetail channel and said opposing edges and said opposing
interior upstanding prongs being oriented upwardly, said elongate hingeable arm permitting
planar rotation of 180 degrees in order to engage said first dovetail channel.
5. The adjustable clip (80C) according to claim 1, wherein said second dovetail channel
(102C) secured to said base (90) of said first dovetail channel (88) is unitarily
formed with said first dovetail channel, the opposing interior upstanding prongs (114C,
116) being fixed to said base (90) of said first dovetail channel.
6. The adjustable clip according to any of the preceding claims, wherein said plurality
of internal ribs (134) on said exterior threaded tubular cap member (82) are radially
oriented within said threaded tubular cap member.
7. The adjustable clip according to any of the preceding claims, wherein said plurality
of internal ribs within said threaded tubular cap member are non-radial in orientation
within said threaded tubular cap member.
8. The adjustable clip according to any of the preceding claims, wherein said clip member
is rotatably adjustable on said exterior threaded tubular cap member for adjustment
of height of said clip member for receipt of a screed guide/control joint length of
either large profile or small profile.
9. A screed guide/control joint system arranged on a substrate, comprising an adjustable
clip according to any of the preceding claims, a rebar (60) and a substrate-engaging
base member (140), wherein an end portion of said rebar frictionally engageable with
the exterior threaded tubular cap member of the adjustable clip is supported by a
substrate-engaging base member (140), said substrate-engaging base member having a
planar support base having an upper surface and a lower surface there being disposed
between said upper and lower surface a plurality of apertures, there being positioned
on said upper surface and unitary therewith, a tubular upstanding support tube for
the receipt of a lower end of said rebar, said support base secured to said substrate
by an adhesive (156) applied to the lower surface of the support base or to the substrate,
in a quantity such that said adhesive flows through said plurality of apertures and
adheres to and encapsulates said upper surface of said support plate.
10. The screed guide/control joint system of claim 9, further comprising a large-profile
screed guide/control joint (10B) for the placement of concrete, said screed guide/control
joint being formed of extruded polymer and having a base (12B), an upward standing
ridge (24B) of triangular cross-section terminating in an upper linear edge (30B),
wherein a bottom wall (14B) of the base portion comprises two longitudinal grooves
(214, 216) designed to respectively receive the opposing interior upstanding prongs
(114C, 116C) when the base portion (12B) of the screed guide/control joint is snap-fittingly
engaged with the screed guide/control joint clip (80C).
11. A method for positioning and leveling a large-profile or small-profile screed guide/control
joint (10, 10B) for the placement of concrete on any type of substrate, said screed
guide/control joint being formed of extruded polymer and having a base (12, 1 2B)
and an upward standing ridge of triangular cross section terminating in an upper linear
edge,
said large-profile screed guide/control joint (10, 10B) being suitable for use in
the placement of concrete slabs of a depth superior to 15,24 cm,
said small-profile screed guide/control joint being suitable for use in the placement
of concrete slabs of a depth inferior or equal to 15,24 cm,
the method comprising the steps of :
- a) positioning upstanding pieces of rebar (60) in an aligned orientation in the
substrate to be overlaid with concrete ;
- b) positioning, in frictional engagement with the upper portion of said upstanding
piece of rebar, the exteriorly threaded tubular cap member (82) of an adjustable clip
according to any one of claims 1 to 8, said cap member having a plurality of internal
ribs;
- c) securing a clip member (80, 80B, 80C) of the adjustable clip according to claims
1 to 8 to said exteriorly threaded tubular cap member;
- d) rotating said clip member on said exteriorly threaded tubular cap member to achieve
equivalent heights of all said clip members secured to said exterior threaded tubular
cap members on said pieces of rebar ;
- e) snap-fitting the base (12, 12B) of a screed guide/control joint of either large
profile or small profile, respectively into the first (88) or second (102) dove-tail
channels of said plurality of aligned and leveled clip members ; and
- f) placing said concrete onto said substrate to the height of said upper linear
edge of said screed guide/control joint.
12. The method according to claim 11, wherein said end portion of rebar (60) frictionally
engageable with said exterior threaded tubular cap member (82) is supported by a substrate-engaging
base member (140), said substrate-engaging base member having a planar support base
having an upper surface and a lower surface, there being disposed between said upper
and lower surface a plurality of apertures, there being positioned on said upper surface
and unitary therewith, a tubular upstanding support tube for the receipt of a lower
end of said rebar, said support base being secured to said substrate by an adhesive
applied to the lower surface of the support base or to the substrate, in a quantity
such that said adhesive flows through said plurality of apertures and adheres to and
encapsulates said upper surface of said support plate.
1. Verstellbarer Halter zum Positionieren und Nivellieren einer Bohlenführung/Scheinfuge
mit großem Profil oder kleinem Profil (10, 10B) zur Anordnung von Beton, wobei die
Bohlenführung/Scheinfuge aus extrudiertem Polymer gebildet ist und eine Basis (12)
und eine aufrechtstehende Rippe (24) mit dreieckigem Querschnitt aufweist, die in
einer linearen Oberkante (30) endet,
wobei die Bohlenführung/Scheinfuge mit großem Profil (10, 10B) zur Verwendung bei
der Anordnung von Betonplatten einer Tiefe von über 15,24 cm geeignet ist,
die Bohlenführung/Scheinfuge mit kleinem Profil zur Verwendung bei der Anordnung von
Betonplatten einer Tiefe von bis zu 15,24 cm geeignet ist,
wobei der verstellbare Halter umfasst:
- ein rohrförmiges Kappenelement mit Außengewinde (82) mit einer Mehrzahl von inneren
Rippen (134), wobei das Kappenelement mit Außengewinde mit einem aufrechten Endabschnitt
eines Bewehrungsstabs (60) der in einem Substrat positioniert ist, reibschlüssig in
Eingriff gebracht werden kann;
- ein Halterelement (80, 80B, 80C) mit einer rohrförmigen Basis (84) mit einem Innengewinde,
das drehbar mit dem Kappenelement mit Außengewinde in Eingriff gebracht werden kann,
wobei die rohrförmige Basis einen einheitlich ausgebildeten ersten Schwalbenschwanzkanal
(88) auf einer oberen Oberfläche ausgebildet aufweist, wobei der Schwalbenschwanzkanal
aus einer Basis (90) und gegenüberliegenden aufrechten Kanten (92, 94) gebildet ist,
die den Schwalbenschwanzkanal definieren, wobei der Schwalbenschwanzkanal so bemessen
ist (100), dass er eine Basis (12) einer Bohlenführung/Scheinfuge mit großem Profil
einschnappend aufnimmt;
einen zweiten Schwalbenschwanzkanal (102, 102B, 102C), der an der Basis des ersten
Schwalbenschwanzkanals befestigt ist, wobei der zweite Schwalbenschwanzkanal gegenüberliegende
innere aufrechte Zacken (114, 116) aufweist und so bemessen ist, dass er eine Bohlenführung/Scheinfuge
mit kleinem Profil einschnappend aufnimmt;
wobei eine Mehrzahl der rohrförmigen Kappenelemente mit Außengewinde geeignet ist,
auf aufrechten Endabschnitten des Bewehrungsstabs in linearer Orientierung zu einem
Substrat angeordnet zu werden, um entweder eine Bohlenführung/Scheinfugenlänge mit
großem Profil oder mit kleinem Profil einschnappend aufzunehmen.
2. Verstellbarer Halter (80, 80B) nach Anspruch 1, wobei der zweite Schwalbenschwanzkanal
(102, 102B), der an der Basis des ersten Schwalbenschwanzkanals befestigt ist, eine
Basis (108) und gegenüberliegende aufrechte Kanten (110, 112) aufweist, die mit dem
ersten Schwalbenschwanzkanal einschnappend in Eingriff gebracht werden können.
3. Verstellbarer Halter nach Anspruch 2, wobei der zweite Schwalbenschwanzkanal, der
an der Basis des ersten Schwalbenschwanzkanals befestigt ist, an der Basis des ersten
Schwalbenschwanzkanals mit den gegenüberlegenden aufrechten Kanten und gegenüberliegenden
inneren aufrechten Zacken, die nach unten orientiert sind, gelenkig (106) befestigt
ist, wobei der zweite Schwalbenschwanzkanal gelenkig um 180 Grad gedreht wird, um
in den ersten Schwalbenschwanzkanal einzugreifen.
4. Verstellbarer Halter nach Anspruch 2, wobei der zweite Schwalbenschwanzkanal, der
an der Basis des ersten Schwalbenschwanzkanals befestigt ist, durch einen länglichen
flexiblen Gelenkarm (106) befestigt ist, wobei der zweite Schwalbenschwanzkanal und
die gegenüberliegenden inneren aufrechten Zacken nach oben orientiert sind, und der
längliche gelenkige Arm planare Drehung um 180 Grad ermöglicht, um in den ersten Schwalbenschwanzkanal
einzugreifen.
5. Verstellbarer Halter (80C) nach Anspruch 1, wobei der zweite Schwalbenschwanzkanal
(102C), der an der Basis (90) des ersten Schwalbenschwanzkanals (88) befestigt ist,
einheitlich mit dem ersten Schwalbenschwanzkanal ausgebildet ist, wobei die gegenüberliegenden
inneren aufrechten Zacken (114C, 116C) an der Basis (90) des ersten Schwalbenschwanzkanals
fixiert sind.
6. Verstellbarer Halter nach einem der vorhergehenden Ansprüche, wobei die Mehrzahl von
inneren Rippen (134) auf dem rohrförmigen Kappenelement mit Außengewinde (82) innerhalb
des mit einem Gewinde versehenen rohrförmigen Kappenelements radial orientiert ist.
7. Verstellbarer Halter nach einem der vorhergehenden Ansprüche, wobei die Mehrzahl von
inneren Rippen innerhalb des mit einem Gewinde versehenen rohrförmigen Kappenelements
nicht radial innerhalb des mit einem Gewinde versehenen rohrförmigen Kappenelements
orientiert ist.
8. Verstellbarer Halter nach einem der vorhergehenden Ansprüche, wobei das Halterelement
auf dem rohrförmigen Kappenelement mit Außengewinde zur Verstellung der Höhe des Halterelements
zur Aufnahme entweder einer Bohlenführung/Scheinfugenlänge mit großem Profil oder
mit kleinem Profil drehbar verstellt werden kann.
9. Bohlenführung/Scheinfugensystem, das auf einem Substrat angeordnet ist und einen verstellbaren
Halter nach einem der vorhergehenden Ansprüche, einen Bewehrungsstab (60) und ein
in das Substrat eingreifendes Basiselement (140) umfasst, wobei ein Endabschnitt des
Bewehrungsstabs, der mit dem rohrförmigen Kappenelement mit Außengewinde des verstellbaren
Halters reibschlüssig in Eingriff gebracht werden kann, durch ein in das Substrat
eingreifendes Basiselement (140) getragen wird, das in das Substrat eingreifende Basiselement
eine planare Stützbasis mit einer oberen Oberfläche und einer unteren Oberfläche aufweist,
wobei zwischen der oberen und unteren Oberfläche eine Mehrzahl von Öffnungen angeordnet
ist, auf der Oberseite und einheitlich damit ein rohrförmiges aufrechtes Stützrohr
zur Aufnahme eines unteren Endes des Bewehrungsstabs positioniert ist, die Stützbasis
am Substrat durch ein Haftmittel (156) befestigt ist, das auf die untere Oberfläche
der Stützbasis oder auf das Substrat in einer derartigen Menge aufgetragen ist, dass
das Haftmittel durch die Mehrzahl der Öffnungen fließt und an der oberen Oberfläche
der Stützplatte haftet und diese einkapselt.
10. Bohlenführung/Scheinfugensystem nach Anspruch 9, ferner umfassend eine Bohlenführung/Scheinfuge
mit großem Profil (10B) zur Anordnung von Beton, wobei die Bohlenführung/Scheinfuge
aus extrudiertem Polymer gebildet ist und eine Basis (12B) und eine aufrechte Rippe
(24B) mit dreieckigem Querschnitt aufweist, die in einer linearen Oberkante (30B)
endet, wobei eine Bodenwand (14B) des Basisabschnitts zwei Längsnuten (214, 216) umfasst,
die zum jeweiligen Aufnehmen der gegenüberliegenden inneren aufrechten Zacken (114C,
116C) ausgelegt sind, wenn der Basisabschnitt (12B) der Bohlenführung/Scheinfuge mit
dem Bohlenführung/Scheinfugenhalter (80C) einschnappend in Eingriff gebracht wird.
11. Verfahren zur Positionierung und Nivellierung einer Bohlenführung/Scheinfuge mit großem
Profil oder kleinem Profil (10, 10B) zur Anordnung von Beton auf einem beliebigen
Substrattyp, wobei die Bohlenführung/Scheinfuge aus extrudiertem Polymer gebildet
ist und eine Basis (12, 12B) und eine aufrechtstehende Rippe mit dreieckigem Querschnitt
aufweist, die in einer linearen Oberkante endet,
wobei die Bohlenführung/Scheinfuge mit großem Profil (10, 10B) zur Verwendung bei
der Anordnung von Betonplatten einer Tiefe von über 15,24 cm geeignet ist,
die Bohlenführung/Scheinfuge mit kleinem Profil zur Verwendung bei der Anordnung von
Betonplatten einer Tiefe von bis zu 15,24 cm geeignet ist,
wobei das Verfahren die folgenden Schritte umfasst:
- a) Positionieren von aufrechten Teilen eines Bewehrungsstabs (60) in einer ausgerichteten
Orientierung im Substrat, das mit Beton überlagert werden soll;
- b) Positionieren in reibschlüssigem Eingriff mit dem oberen Abschnitt des aufrechten
Teils des Bewehrungsstabs des mit einem Außengewinde versehenen rohrförmigen Kappenelements
(82) eines verstellbaren Halters nach einem der Ansprüche 1 bis 8, wobei das Kappenelement
eine Mehrzahl von inneren Rippen aufweist;
- c) Befestigen eines Halterelements (80, 80B, 80C) des verstellbaren Halters nach
Anspruch 1 bis 8 an dem mit einem Außengewinde versehenen rohrförmigen Kappenelement;
- d) Drehen des Halterelements auf dem mit einem Außengewinde versehenen rohrförmigen
Kappenelement, um äquivalente Höhen aller Halterelemente zu erreichen, die an den
rohrförmigen Kappenelementen mit Außengewinde auf den Teilen des Bewehrungsstabs befestigt
sind;
- e) einschnappendes Einpassen der Basis (12, 12B) entweder einer Bohlenführung/Scheinfuge
mit einem großen Profil oder mit einem kleinen Profil in die ersten (88) bzw. zweiten
(102) Schwalbenschwanzkanäle der Mehrzahl von ausgerichteten und nivellierten Halterelementen;
und
- f) Anordnen des Betons auf dem Substrat bis zur Höhe der linearen Oberkante der
Bohlenführung/Scheinfuge.
12. Verfahren nach Anspruch 11, wobei der Endabschnitt des Bewehrungsstabs (60), der reibschlüssig
mit dem rohrförmigen Kappenelement mit Außengewinde (82) in Eingriff gebracht werden
kann, durch ein in das Substrat eingreifendes Basiselement (140) getragen wird, das
in das Substrat eingreifende Basiselement eine planare Stützbasis mit einer oberen
Oberfläche und einer unteren Oberfläche aufweist, wobei zwischen der oberen und unteren
Oberfläche eine Mehrzahl von Öffnungen angeordnet wird, auf der Oberseite und einheitlich
damit ein rohrförmiges aufrechtes Stützrohr zur Aufnahme eines unteren Endes des Bewehrungsstabs
positioniert wird, die Stützbasis am Substrat durch ein Haftmittel befestigt wird,
das auf die untere Oberfläche der Stützbasis oder auf das Substrat in einer derartigen
Menge aufgetragen wird, dass das Haftmittel durch die Mehrzahl der Öffnungen fließt
und an der oberen Oberfläche der Stützplatte haftet und diese einkapselt.
1. Clip ajustable pour positionner et mettre à niveau un joint de guide/de dilatation
de poutre lisseuse à grand profil ou petit profil (10, 10B) pour la mise en place
de béton, ledit joint de guide/de dilatation de poutre lisseuse étant formé à partir
de polymère extrudé et ayant une base (12), et une crête droite (24) de section transversale
triangulaire se terminant par un bord linéaire supérieur (30),
ledit joint de guide/de dilatation de poutre lisseuse à grand profil (10, 10B) étant
approprié pour être utilisé pour la mise en place des dalles de béton d'une profondeur
supérieure à 15,24 cm,
ledit joint de guide/de dilatation de poutre lisseuse à petit profil étant approprié
pour être utilisé pour la mise en place de dalles de béton d'une profondeur inférieure
ou égale à 15,24 cm,
ledit clip ajustable comprenant :
un élément de capuchon tubulaire fileté extérieur (82) ayant une pluralité de nervures
internes (134), ledit élément de capuchon fileté extérieur pouvant se mettre en prise
par friction avec une partie d'extrémité droite d'armature (60) positionnée dans un
substrat ;
un élément de clip (80, 80B, 80C) ayant une base tubulaire (84) ayant un filetage
interne pouvant se mettre en prise en rotation, avec ledit élément de capuchon fileté
extérieur, ladite base tubulaire ayant un premier canal en queue d'aronde (88) formé
de manière unitaire, formé sur une surface supérieure, ledit premier canal en queue
d'aronde étant formé avec une base (90) et des bords droits (92, 94) opposés définissant
ledit canal en queue d'aronde, ledit canal en queue d'aronde étant dimensionné (100)
pour recevoir par ajustement par encliquetage une base (12) d'un joint de guide/de
dilatation de poutre lisseuse à grand profil ;
un second canal en queue d'aronde (102, 102B, 102C) étant fixé sur ladite base dudit
premier canal en queue d'aronde, ledit second canal en queue d'aronde ayant des dents
droites intérieures (114, 116) opposées, dimensionnées pour recevoir par ajustement
par encliquetage un joint de guide/de dilatation de poutre lisseuse à petit profil
;
une pluralité desdits éléments de capuchon tubulaires filetés extérieurs et d'éléments
de clip étant appropriés pour être agencés sur des parties d'extrémité droites de
ladite armature, dans une orientation linéaire par rapport à un substrat, afin de
recevoir par ajustement par encliquetage une longueur de joint de guide/de dilatation
de poutre lisseuse à grand profil ou à petit profil.
2. Clip ajustable (80, 80B) selon la revendication 1, dans lequel ledit second canal
en queue d'aronde (102, 102B) fixé sur ladite base dudit premier canal en queue d'aronde
a une base (108) et des bords droits (110, 112) opposés pouvant se mettre en prise
par ajustement par encliquetage dans ledit premier canal en queue d'aronde.
3. Clip ajustable selon la revendication 2, dans lequel ledit second canal en queue d'aronde
fixé sur ladite base dudit premier canal en queue d'aronde est fixé par charnière
(106) à ladite base dudit premier canal en queue d'aronde avec lesdits bords droits
opposés et les dents droites intérieures opposées orientées vers le bas, ledit second
canal en queue d'aronde étant entraîné en rotation, par charnière, à 180 degrés pour
mettre en prise ledit premier canal en queue d'aronde.
4. Clip ajustable selon la revendication 2, dans lequel ledit second canal en queue d'aronde
fixé à ladite base dudit premier canal en queue d'aronde est fixé par un bras de charnière
flexible allongé (106), ledit second canal en queue d'aronde et lesdits bords opposés
et lesdites dents droites intérieures opposées étant orientés vers le haut, ledit
bras pouvant être articulé allongé permettant la rotation planaire de 180 degrés afin
de mettre en prise ledit premier canal en queue d'aronde.
5. Clip ajustable (80C) selon la revendication 1, dans lequel ledit second canal en queue
d'aronde (102C) fixé à ladite base (90) dudit premier canal en queue d'aronde (88)
est formé de manière unitaire avec ledit premier canal en queue d'aronde, les dents
droites intérieures (114C, 116) opposées étant fixées à ladite base (90) dudit premier
canal en queue d'aronde.
6. Clip ajustable selon l'une quelconque des revendications précédentes, dans lequel
ladite pluralité de nervures internes (134) sur ledit élément de capuchon tubulaire
fileté extérieur (82) sont orientées radialement à l'intérieur dudit élément de capuchon
tubulaire fileté.
7. Clip ajustable selon l'une quelconque des revendications précédentes, dans lequel
ladite pluralité de nervures internes à l'intérieur dudit élément de capuchon tubulaire
fileté ne sont pas radiales du point de vue de l'orientation à l'intérieur dudit élément
de capuchon tubulaire fileté.
8. Clip ajustable selon l'une quelconque des revendications précédentes, dans lequel
ledit élément de clip est ajustable en rotation sur ledit élément de capuchon tubulaire
fileté extérieur pour l'ajustement de hauteur dudit élément de clip pour la réception
d'une longueur de joint de guide/de dilatation de poutre lisseuse à grand profil ou
à petit profil.
9. Système de joint de guide/de dilatation de poutre lisseuse agencé sur un substrat,
comprenant un clip ajustable selon l'une quelconque des revendications précédentes,
une armature (60) et un élément de base de mise en prise de substrat (140), dans lequel
une partie d'extrémité de ladite armature pouvant être mise en prise par friction
avec l'élément de capuchon tubulaire fileté extérieur du clip ajustable est supportée
par un élément de base pouvant se mettre en prise avec le substrat (140), ledit élément
de base pouvant se mettre en prise avec le substrat à base de support planaire possédant
une surface supérieure et une surface inférieure, où l'on dispose entre lesdites surfaces
supérieure et inférieure, une pluralité d'ouvertures, où l'on positionne sur ladite
surface supérieure et de manière unitaire à cette dernière, un tube de support droit
tubulaire pour recevoir l' extrémité inférieure de ladite armature, ladite base de
support étant fixée sur ledit substrat par un adhésif (156) appliqué sur la surface
inférieure de la base de support ou sur le substrat, selon une quantité telle que
ledit adhésif s'écoule à travers ladite pluralité d'ouvertures et se colle sur ladite
surface supérieure de ladite plaque de support et l'encapsule.
10. Système de joint de guide/de dilatation de poutre lisseuse selon la revendication
9, comprenant en outre un joint de guide/de dilatation de poutre lisseuse à grand
profil (10B) pour la mise en place du béton, ledit joint de guide/de dilatation de
poutre lisseuse étant formé à partir de polymère extrudé et ayant une base (12B),
une crête droite (24B) de section transversale triangulaire se terminant par un bord
linéaire supérieur (30B), dans lequel une paroi inférieure (14B) de la partie de base
comprend deux rainures longitudinales (214, 216) conçues pour recevoir, respectivement,
les dents droites intérieures (114C, 116C) opposées lorsque la partie de base (12B)
du joint de guide/de dilatation de la poutre lisseuse est mise en prise, par encliquetage,
avec le clip (80C) du joint de guide/de dilatation de poutre lisseuse.
11. Procédé pour positionner et mettre à niveau un joint de guide/de dilatation de poutre
lisseuse à grand profil ou à petit profil (10, 10B) pour la mise en place deau béton
sur n'importe quel type de substrat, ledit joint de guide/de dilatation de poutre
lisseuse étant formé à partir de polymère extrudé et ayant une base (12, 12B), et
une crête droite de section transversale triangulaire se terminant par un bord linéaire
supérieur,
ledit joint de guide/de dilatation de poutre lisseuse à grand profil (10, 10B) étant
approprié pour être utilisé pour la mise en place de dalles de béton d'une profondeur
supérieure à 15,24 cm,
ledit joint de guide/de dilatation de poutre lisseuse à petit profil étant approprié
pour être utilisé pour la mise en place de dalles de béton d'une profondeur inférieure
ou égale à 15,24 cm,
le procédé compren les étapes consistant à :
a) positionner les pièces droites d'armature (60) de manière à les aligner dans le
substrat afin qu'elles soient recouvertes de béton ;
b) positionner, en mise en prise par friction avec la partie supérieure de la pièce
droite d'armature, l'élément de capuchon tubulaire extérieurement fileté (82) d'un
clip ajustable selon l'une quelconque des revendications 1 à 8, ledit élément de capuchon
ayant une pluralité de nervures internes ;
c) fixer un élément de clip (80, 80B, 80C) du clip ajustable selon les revendications
1 à 8, sur ledit élément de capuchon tubulaire extérieurement fileté ;
d) faire tourner ledit élément de clip sur ledit élément de capuchon tubulaire extérieurement
fileté pour obtenir des hauteurs équivalentes de tous lesdits éléments de clip fixés
sur lesdits éléments de capuchon tubulaire filetés à l'extérieur sur les pièces d'armature
;
e) ajuster par encliquetage la base (12, 12B) d'un joint de guide/de dilatation de
poutre lisseuse à grand profil ou à petit profil, respectivement dans le premier (88)
ou le second (102) canal en queue d'aronde de ladite pluralité d'éléments de clip
alignés et mis à niveau ; et
f) placer ledit béton sur ledit substrat à la hauteur dudit bord linéaire supérieur
dudit joint de guide/de dilatation de poutre lisseuse.
12. Procédé selon la revendication 11, dans lequel ladite partie d'extrémité de l'armature
(60 pouvant se mettre en prise par friction avec ledit élément de capuchon tubulaire
fileté à l'extérieur (82), est supporté par un élément de base susceptible de se mettre
en prise avec le substrat (140), ledit élément de base pouvant se mettre en prise
avec le substrat ayant une base de support planaire et une surface supérieure et inférieure,
où est disposée entre lesdites surfaces supérieures et inférieures, une pluralité
d'ouvertures, où l'on positionne, sur ladite surface supérieure et de manière unitaire
par rapport à cette dernière, un tube de support droit tubulaire pour recevoir l'
extrémité inférieure de ladite armature, ladite base de support étant fixée sur ledit
substrat par un adhésif appliqué sur la surface inférieure de la base de support ou
sur le substrat, selon une quantité telle que ledit adhésif s'écoule à travers ladite
pluralité d'ouvertures et adhère sur ladite surface supérieure de ladite plaque de
support et l'encapsule.