US3179026A - Sealing element for pavement grooves - Google Patents

Sealing element for pavement grooves Download PDF

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Publication number
US3179026A
US3179026A US373000A US37300064A US3179026A US 3179026 A US3179026 A US 3179026A US 373000 A US373000 A US 373000A US 37300064 A US37300064 A US 37300064A US 3179026 A US3179026 A US 3179026A
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Prior art keywords
pavement
sealing strip
side walls
walls
joint
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Expired - Lifetime
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US373000A
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English (en)
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Alfred F Crone
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Individual
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Individual
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Application filed by Individual filed Critical Individual
Priority to US373000A priority Critical patent/US3179026A/en
Priority to SE1775/65A priority patent/SE317698B/xx
Priority to CH227665A priority patent/CH415713A/fr
Application granted granted Critical
Publication of US3179026A publication Critical patent/US3179026A/en
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    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C11/00—Details of pavings
    • E01C11/02—Arrangement or construction of joints; Methods of making joints; Packing for joints
    • E01C11/04—Arrangement or construction of joints; Methods of making joints; Packing for joints for cement concrete paving
    • E01C11/10—Packing of plastic or elastic materials, e.g. wood, resin
    • E01C11/106—Joints with only prefabricated packing; Packings therefor

Definitions

  • This invention relates to a seal for use in joints in pavements and other structures, and particularly to a preformed seal or article which is inserted in a construction or pavement joint to provide a seal therefor.
  • joints be used in pavement or other structures to allow for expansion and contraction of a given length of structure under varying temperature conditions, and due to shrinkage of the material while hardening.
  • Such joints are slots or grooves between adjacent lengths of pavement which are wide enough to accommodate the lineal expansion of the pavement under warm weather conditions.
  • the joints are usually formed by a spacer member which is inserted between adjacent pavement strips when they are laid down, or by subsequently sawing a groove in a continuous strip of pavement before it has permanently set.
  • Such grooves or joints are formed in pavements or other structures, such as dams, tanks and the like.
  • My improvements will be herein described mainly in connection with pavements, but it will be understood that the. same improvements may equally well be employed in other structures.
  • These grooves are provided in connection with expansion joints which are formed crosswise of a pavement or highway for compensating for expansion of longitudinally extending pavement sections, or in connection with contraction joints also between such longitudinally extending pavement sections which compensate mainly for the contraction of the pavement sections in which the compression strength of the paving material is relied upon to prevent damage to the pavement due to expansion of the pavement sections.
  • expansion joints which are formed crosswise of a pavement or highway for compensating for expansion of longitudinally extending pavement sections
  • contraction joints also between such longitudinally extending pavement sections which compensate mainly for the contraction of the pavement sections in which the compression strength of the paving material is relied upon to prevent damage to the pavement due to expansion of the pavement sections.
  • an important function is to prevent irregular breaking of the pavement due to expansion or contraction of the pavement since such irregular breaks are difiicult to repair.
  • the grooves for expansion and contraction joints serve mainly the purpose of providing lines of weakness extending crosswise of the pavement to cause any stresses in the paving material tending to break the pavement to do so along straight lines extending crosswise
  • Pavement grooves or joints are also formed between longitudinal strips of pavement, for example, of a two lane highway, to receive seals which prevent foreign material from entering the joints or grooves between these adjacent longitudinal strips or lanes of pavement.
  • the sealing elements herein described may be used in connection with any of these joints.
  • grooves must be sealed in order to prevent accumulation of unwanted particles such as sand or gravel, and to prevent infiltration of water, which in cold weather would lead to heaving and cracking of the pavement adjacent the joint. It has been standard practice for many years to fill such grooves with an asphalt or similar type of filler which would yield during warm weather when the width of the joint becomes smaller due to expansion of the adjacent pavement lengths. Joints having such filling materials must be repaired and replaced periodically and normally require inspection and repairs at six month intervals.
  • Examples of such devices are strips of solid materials such as sponge rubber, or of natural rubber units having an exterior ridged wall and a hollow interior section.
  • a still further object of this invention is to provide a sealing strip which has side walls that are continuously forced outwardly and into engagement with the side walls of the joint under all weather conditions.
  • FIG. 1 shows in cross section the sealing strip and the joint with the sealing strip shown prior to compression and just before insertion within the joint.
  • PEG. 2 is a similar cross sectional view showing the sealing strip after insertion within the joint.
  • FIG. 3 is a similar cross sectional view also showing on a slightly larger scale than FIG. 1 the same scaling strip joint at the maximum width of the joint for extreme cold weather conditions.
  • FIG. 4 shows in perspective a wedge-shaped sealing strip similar to that shown in FIGS. 1 to 3 which has outwardly flared side walls for wedge-shaped grooves in pavement.
  • FIG. 5 shows a section of pavement illustrating the use of the sealing strip in both transverse and longitudinal pavement grooves.
  • FIG. 1 shows in cross section the sealing strip S in its uncompressed state immediately prior to insertion in a joint and between two adjacent pavement slabs generally indicated at P.
  • the sealing strip is an elongated, extruded or molded member made of an elastomeric material having thin side walls 12 andl iwhich meet downwardly inclined top walls 16 and 18 at a pointed apex and 19 respectively.
  • Bottom walls 2i and-22 are downwardly inclined and meet at an apex 26 to facilitate insertion of the sealing strip between the adjacent faces 5% and 52 which form the joint between the adjacent pavement sections P.
  • the ribbing within the exterior walls of the seal encloses two diamond-shaped sections 24 and 3 which allow compression of the ribbing without interference, as can be seen from FIG. 2, which shows the compressed sealing strip after it has been inserted into the expansion joint.
  • the diagonal ribs 3-2 and 34 assist in supporting the central portion of walls 12 and 14 respectively by connecting them with the central, interior portion of the top walls 16 and 18 immediately below the central groove 17. These ribs thus become one member of a triangular truss section including the rib, the top wall, and the upper portion of the side wall of the sealing strip.
  • Diagonal ribs 36 and 38 similarly support the sealing strip side walls, and with diagonal ribs 32 and 34 form the central, interior, diamond-shaped cavity 30. Diagonal ribs 36 and 38 are joined at their apex to upwardly extending diagonal ribs 40 and 42, the latter being connected at the juncture of the sealing strip side and bottom walls.
  • ribs 36and 40 form a structural triangle with the lower section of side wall 12, and that diagonal rib members 38 and 42 form a structural support triangle with the lower sections of wall 14, and that each of these triangular configurations meet at an apex to give mutual support to each other. It will be noted that pressure exerted at the central section of, side wall 12 is resisted along a line of force through member 36 and then through member 42 which is integral with the opposite side wall 14. v V
  • diagonal support ribs are such that they are rigidly fastened in an internal truss arrangement which is extremely rigid and strong and yet takes up very little space. At full compression the unit is not hindered by interference fronrunnecessarily overlapped support ribs or from excessively thick sections.
  • top walls 16 and 18, and the bottom walls and 22 as well as the side walls 12 and 14 serve as structural support members in the truss configuration.
  • Bottom walls 2% and 22 also assist in guiding the strip into position during the initial phase of insertion into the joint.
  • Upper walls 16 and 18 because of their downward orientation, and because of their additional thickness'will, when compressed, force the central grooved section 17 downward, thereby minimizing the tendency of the top walls 16 and 18 to bulge upwardly.
  • An upward bulge of the top walls to a point where they are above the level of the pavement will contribute to failure of the seal from impact with traffic.
  • FIG. 2 shows in cross section the seal immediately after insertion and shows the manner in which the seal collapses into the diamond-shaped areas 24 and 30, as well as the fiexure of the diagonalrib members.
  • FIG. 2 and 3 are on a slightly larger scale than that shown in FIG. 1, to more plainly illustrate the action of the ribs in the internal truss arrangement of this device.
  • FIG. 3 illustrates the seal strip in cross section under cold weather conditions Where the groove has a maximum width, and clearly shows that there is some compression and buckling of the support ribs for this condition too.
  • the sealing strip S must be under compression at all times to insure successful sealing action, and due to the considerable dimentional change in the width of the joint, it is essential that the compression strip be capable of being reduced to approximately one-half of its uncompressed Width;
  • FIG. 4 shows in perspective the end portion of a transverse groove seal member S having similarly identified parts of the sealing strip S shown in FIGS. 1. through 3.
  • Sealing strip S is used for transverse or longitudinal grooves on concrete pavement strips.
  • FIG. 5. shows a section of pavement wherein a sealing strip .84) is used in a transverse joint. This would correspond to the sealing strip S shown in FIG. 4.
  • a concrete groove of inch width, and two inch depth is required.
  • the width of the trihsverse sealing strip S for such a groove is of an inch between apexes 15' and 19 with a total height 1 and inches.
  • the depth of the grooves is the distance from the top surface of the pavement P down to the step '58 as shown in FIGS. 2 and 3.
  • the groove shown in these figures is a typical construction which can be made by using molding pieces, or by sawing the partially hardened concrete before it has finally set.
  • FIG. 5 shows the transverse sealing strip extending across two pavement strips in position with an end section 82 which is bent to extend down along the edge of the groove to seal the end thereof.
  • a separate longitudinal strip is shown in a groove which has been sawed lengthwise of the pavement and through the transverse strip 80 to separate the pavement into two lanes.
  • the material from which the sealing strip is made be extremely flexible and that it does not deteriorate or lose its resilience after exposure to the elements. This has been the drawback of previous devices, and applicant has found that it is essential to use a low crystallization type elastomeric compound to assure successful operation of the sealing strip.
  • An ordinary rubber material will not meet the necessary requirements since it will lose its resilience due to the effect of ozone, sunlight and temperature variance.
  • the low crystallization elastomeric which applicant has found to be successful after considerable testing has been neoprene synthetic rubber, and this has made it possible for the sealing strip to work effectively with no maintenance over a period of more than three years. It is absolutely necessary that the sealing strip retain its resilience and not take a permanent set so that it may expand and contract as the width of the joint changes under varying temperature conditions. This characteristic of resilience makes it possible for the seals to be installed and maintenance thereof dispensed with.
  • the resilience of the sealing strips and their ability to be compressed will assure a tight seal between the faces of the groove and the sealing strip walls.
  • the material have good wear resistance to abrasive materials such as sand and gravel, and that it have good resistance to petroleum products and chlorides as well as general weather conditions. Neoprene has good resistance to these deteriorating agents also.
  • the sealing strip S is inserted in the joint'by hand using a roller which presses down on the top wall sections 16 and 18. Before inserting such strip however, it is essential that the joint be cleaned, and that a layer of lubricantadhesive be applied to the joint walls 50 and 52. Such a layer is shown at 54 and 56 ofF IGS. 1 2 and 3 This material is a liquid neoprene glue suspension.
  • the sealing strip S is applied before the suspension has a chance to dry so that the liquid will reduce friction between the sealing strip and the walls of the joint.
  • the films 54 and 56 of lubricant-adhesive seal the pores in the pavement immediately adjacent the sealing strip,- and also adhere the Walls of the sealing strip to the pavement Walls 50 and 52. When the sealing strip is in position, its topmost portion should be approximately of an inch below the pavement surface. i
  • the entire ribbing of the structure be sufficiently strong to maintain constant pressure against the side walls of the joint.
  • the ribbing be thin in section and that a minimum reinforcing be used so that the sealing strip width can be compressed as much as possible to accommodate changes in the width of the seal joint.
  • a sealing strip for joints comprising:
  • each of said side walls being substantially flat, equal in length, and substantially longer than said bottom and top walls;
  • said hollow body having an internal truss structure connected to said side walls so that a strong support is provided thereby to oppose lateral deformation of said walls; and j (d) said truss structure having diagonal rib members which are interconnected and have spaces therebe tween which will permit said rib members to collapse into said spaces when said side walls are laterally compressed; and
  • said rib members forming a plurality of connected triangular sections, one of the members of each of said triangular sections being a portion of said side walls.
  • top wall comprises two downwardly inclined straight wall sections which meet and are joined at their lower ends to form a central apex, said sections each being thicker than said rib members, and at their upper ends meeting and joining their corresponding side walls to form a point, so that said straight wall sections will deflect downwardly with minimum upward bulge when said side walls are compressed laterally.
  • bottom wall comprises two downwardly inclined wall sections which meet and are joined at their lower ends to form a central apex, and are connected at their upper ends to their respective side walls, so that the sealing strip can more readily be fitted into a joint.
  • a sealing strip for joints comprising:
  • said crossed diagonal support members each making an angle of at least 30 degrees with said walls.
  • top wall comprises two downwardly inclined straight wall sections which meet and are joined at their lower ends at a central apex, each of said straight wall sections being thicker than said diagonal support ribs, and at their upper ends meeting their corresponding side wall at a point so that said straight wall sections will deflect downwardly with minimum upward bulge when said side walls are compressed.
  • bottom wall comprises two downwardly inclined sections which meet and are joined at their lower ends at a central apex and are connected at their upper ends to their respective side walls, so that the sealing strip is more readily fitted into a joint.
  • a sealing strip for joints comprising:
  • said crossed diagonal support members each making an angle of at least 30 degrees with said walls;
  • said top wall comprising two downwardly inclined straight wall sections which meet and are joined at their lower ends at a central apex, said sections each being thicker than said diagonal support members, and at their upper ends meeting their corresponding side wall to form a point so that said straight wall sections will deflect downwardly with minimum up ward bulge when said side walls are compressed;
  • said bottom wall comprising two inclined sections which meet and are joined at their lower ends and are connected at their upper ends to their respective side Walls, so that the sealing strip is more readily fitted into a joint.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Paving Structures (AREA)
US373000A 1964-06-05 1964-06-05 Sealing element for pavement grooves Expired - Lifetime US3179026A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US373000A US3179026A (en) 1964-06-05 1964-06-05 Sealing element for pavement grooves
SE1775/65A SE317698B (fr) 1964-06-05 1965-02-11
CH227665A CH415713A (fr) 1964-06-05 1965-02-18 Ruban d'étanchéité pour joint

Applications Claiming Priority (1)

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US373000A US3179026A (en) 1964-06-05 1964-06-05 Sealing element for pavement grooves

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CH (1) CH415713A (fr)
SE (1) SE317698B (fr)

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3292330A (en) * 1965-05-24 1966-12-20 Arthur R Tennison Closure for an expansion joint
US3388643A (en) * 1966-06-13 1968-06-18 Brewer Titchener Corp Sealing strip
US3394640A (en) * 1966-08-16 1968-07-30 Donald F. Dreher Sealing inserts for joints in concrete
US3395627A (en) * 1966-03-30 1968-08-06 Robert M. Barton Contraction joint strip and method and apparatus for installing the same
US3469510A (en) * 1966-01-24 1969-09-30 Edoco Technical Products Weakened plane joint former and seal
US3508474A (en) * 1968-09-12 1970-04-28 Hamilton Kent Mfg Co Expansion joint seal,etc.
US3595141A (en) * 1968-12-26 1971-07-27 Brown Co D S Pavement and bridge joint seals
US3611888A (en) * 1969-12-19 1971-10-12 Uniroyal Inc Method of sealing expansion joints and expansion joint assembly
US3645176A (en) * 1969-09-10 1972-02-29 Acme Highway Prod Sealing member
US3653305A (en) * 1970-09-02 1972-04-04 Elastomer Seals Inc Sealing device
US3896597A (en) * 1974-04-04 1975-07-29 Max W Deason Concrete expansion and contraction joint
US3899260A (en) * 1973-04-06 1975-08-12 Acme Highway Prod Sealing member
US3900677A (en) * 1972-11-24 1975-08-19 Fox Ind Expansion joint seal
US3912286A (en) * 1973-11-09 1975-10-14 Acme Highway Prod Sealing member
JPS5118727B1 (fr) * 1968-10-03 1976-06-11
US4657430A (en) * 1983-01-24 1987-04-14 Marionneaux John L Roadway and roadway expansion joint
WO1987005957A1 (fr) * 1986-03-31 1987-10-08 Bechtel Investments, Inc. Joint etanche pour beton monte sous pression/compression
US4743036A (en) * 1986-04-16 1988-05-10 Mm Systems Corporation Compression seal
US4861043A (en) * 1986-03-31 1989-08-29 Bechtel International Corporation Pressure/compression concrete joint seal
US5312672A (en) * 1992-12-21 1994-05-17 Norton Company Sealing strip for wall and floor joints
US6036402A (en) * 1995-04-13 2000-03-14 Perma-Fit Pty Limited Compensating member for pavers
US20030159388A1 (en) * 2002-02-27 2003-08-28 E. Wayne Richardson Device for forming an expansion joint in a floor surface

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2156681A (en) * 1936-06-18 1939-05-02 Goodrich Co B F Sealing strip
US2908949A (en) * 1957-11-12 1959-10-20 Gen Tire & Rubber Co Honeycomb plastic door gasket

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2156681A (en) * 1936-06-18 1939-05-02 Goodrich Co B F Sealing strip
US2908949A (en) * 1957-11-12 1959-10-20 Gen Tire & Rubber Co Honeycomb plastic door gasket

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3292330A (en) * 1965-05-24 1966-12-20 Arthur R Tennison Closure for an expansion joint
US3469510A (en) * 1966-01-24 1969-09-30 Edoco Technical Products Weakened plane joint former and seal
US3395627A (en) * 1966-03-30 1968-08-06 Robert M. Barton Contraction joint strip and method and apparatus for installing the same
US3388643A (en) * 1966-06-13 1968-06-18 Brewer Titchener Corp Sealing strip
US3394640A (en) * 1966-08-16 1968-07-30 Donald F. Dreher Sealing inserts for joints in concrete
US3508474A (en) * 1968-09-12 1970-04-28 Hamilton Kent Mfg Co Expansion joint seal,etc.
JPS5118727B1 (fr) * 1968-10-03 1976-06-11
US3595141A (en) * 1968-12-26 1971-07-27 Brown Co D S Pavement and bridge joint seals
US3645176A (en) * 1969-09-10 1972-02-29 Acme Highway Prod Sealing member
US3611888A (en) * 1969-12-19 1971-10-12 Uniroyal Inc Method of sealing expansion joints and expansion joint assembly
US3653305A (en) * 1970-09-02 1972-04-04 Elastomer Seals Inc Sealing device
US3900677A (en) * 1972-11-24 1975-08-19 Fox Ind Expansion joint seal
US3899260A (en) * 1973-04-06 1975-08-12 Acme Highway Prod Sealing member
US3912286A (en) * 1973-11-09 1975-10-14 Acme Highway Prod Sealing member
US3896597A (en) * 1974-04-04 1975-07-29 Max W Deason Concrete expansion and contraction joint
US4657430A (en) * 1983-01-24 1987-04-14 Marionneaux John L Roadway and roadway expansion joint
WO1987005957A1 (fr) * 1986-03-31 1987-10-08 Bechtel Investments, Inc. Joint etanche pour beton monte sous pression/compression
US4861043A (en) * 1986-03-31 1989-08-29 Bechtel International Corporation Pressure/compression concrete joint seal
US4743036A (en) * 1986-04-16 1988-05-10 Mm Systems Corporation Compression seal
US5312672A (en) * 1992-12-21 1994-05-17 Norton Company Sealing strip for wall and floor joints
US6036402A (en) * 1995-04-13 2000-03-14 Perma-Fit Pty Limited Compensating member for pavers
US20030159388A1 (en) * 2002-02-27 2003-08-28 E. Wayne Richardson Device for forming an expansion joint in a floor surface
US6681540B2 (en) * 2002-02-27 2004-01-27 E. Wayne Richardson Device for forming an expansion joint in a floor surface

Also Published As

Publication number Publication date
CH415713A (fr) 1966-06-30
SE317698B (fr) 1969-11-24

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