Expansion joint system

• US 9,963,872 B2
• Filed: 06/04/2015
• Issued: 05/08/2018
• Est. Priority Date: 11/16/2012
• Status: Expired due to Fees

• Current Assignee: Emseal Joint Systems Limited (Compagnie De Saint-Gobain S.A.)
• Original Assignee: Emseal Joint Systems Limited (Compagnie De Saint-Gobain S.A.)
• Inventors: Hensley, Lester, Witherspoon, William
• Primary Examiner(s): Quast, Elizabeth A
• Application Number:
  US14/730,896
• Publication Number:
  US 20150275508A1
• Time in Patent Office: 1,069 Days
• Field of Search: None
• CPC Class Codes: E01C 11/02 Arrangement or construction of joints for pavings consisting of prefabricated units E01C5/00; Methods of making joints machines therefor E01C23/02, E01C23/09; removable joint shutterings E01C23/021; Packing for joints sealing joints not restricted to road or airfield paving E04B1/68
• CPC Class Codes: E01C 11/106 Joints with only prefabricated packing; Packings therefor
• CPC Class Codes: E01C 11/14 Dowel assembly ; Design or construction of reinforcements in the area of joints coupling devices for prefabricated units E01C5/005; combined with characteristic packings E01C11/08 - E01C11/12; removable holders E01C23/045
• CPC Class Codes: E04B 1/68 of joints, e.g. expansion joints packing for joints in roads or airfields E01C11/02; expansion joints for bridges E01D19/06; sealing joints between foundation piles E02D5/14; joints in foundation structures E02D29/16; devices for sealing the spaces or joints between roof-covering elements E04D1/36; sealing joints between roof-covering elements E04D3/38; construction of joints for flooring or floor layers composed of a number of similar elements E04F15/02005; construction of joints for flooring or floor layers made of masses in situ E04F15/14
• CPC Class Codes: E04B 1/6812 Compressable seals of solid form
• CPC Class Codes: E04B 2001/6818 Joints with swellable parts

Abstract

An expansion joint system includes: a core; and a layer of an elastomer disposed on the core. The core and the layer of elastomer disposed thereon form an elongated section, the elongated section configured to be oriented vertically between substantially coplanar substrates. The expansion joint system further includes a termination section located at one end of the elongated section and comprising a flared end forming an angle with the elongated section and configured to direct fluid and/or particles and/or solvents away from the expansion joint system.

Claims

1. An expansion joint system, comprising:

a core including a fire retardant material in the core;

a layer of an elastomer disposed on the core, the core and the layer of elastomer disposed thereon forming an elongated section, the elongated section configured to be oriented vertically in a joint between substantially coplanar substrates; and

a termination section located at one end of the elongated section and comprising a flared end forming an angle of between about 130 degrees and about 160 degrees with the elongated section and configured to direct at least one of fluid, particles and solvent away from the expansion joint system and away from the substrates and out of the joint.

2. The expansion joint system of claim 1, wherein the angle is about 150 degrees.

3. The expansion joint system of claim 1, wherein the termination section also comprises the core, and the elastomer which is layered on external surfaces of the termination section.

4. The expansion joint system of claim 1, wherein the layer of the elastomer is tooled to define a profile to facilitate compression of the expansion joint system when installed between the substantially coplanar substrates.

5. The expansion joint system of claim 1, wherein the elongated section and the termination section each comprise the layer of the elastomer in at least one of a bellows profile and a bullet profile.

6. The expansion joint system of claim 1, wherein the elongated section and the termination section are factory fabricated as a one piece unit.

7. The expansion joint system of claim 1, wherein the layer of elastomer is a continuous layer over the core of the elongated portion and the termination section.

8. The expansion joint system of claim 1, wherein elongated section and the termination section are fabricated separately, and the termination section is adhered to an end of the elongated section with an adhesive.

9. The expansion joint system of claim 1, wherein the termination section has a square or rectangular shape.

10. The expansion joint system of claim 1, wherein the core comprises open celled foam comprising a plurality of individual laminations assembled to construct a laminate, one or more of the laminations being infused with at least one of a fire retardant material and an acrylic.

11. The expansion joint system of claim 1, wherein the core comprises an open celled foam, and the open celled foam is infused with a fire retardant material selected from the group consisting of:

aluminum tri-hydrate, a metal oxide, a metal hydroxide, aluminum oxide, antimony oxide, antimony hydroxide, an iron compound, ferrocene, molybdenum trioxide, a nitrogen based compound, and a combination thereof.

12. The expansion joint system of claim 11, wherein the fire retardant material is infused in the open celled foam in a ratio about 3.5:

1 to about 4;

1 by weight.

13. The expansion joint system of claim 1, wherein vertically oriented surfaces of the core are retained between edges of the coplanar substrates.

14. The expansion joint system of claim 1, wherein the core comprises at least one of open celled polyurethane foam and open celled polyether foam.

15. The expansion joint system of claim 1, wherein the elastomer disposed on the core comprises a silicone.

16. The expansion joint system of claim 1, wherein the elastomer disposed on the core is selected from the group consisting of polysulfides, acrylics, polyurethanes, poly-epoxides, silyl-terminated polyethers, and combinations of one or more of the foregoing.

17. The expansion joint system of claim 1, wherein the system is a bridge expansion joint system.

18. An expansion joint system, comprising:

a core including a fire retardant material in the core;

a layer of an elastomer disposed on the core, the core and the layer of elastomer disposed thereon forming an elongated section, the elongated section configured to be oriented horizontally in a joint between substantially coplanar substrates and having an end portion configured to angle around a corner, the end portion being vertically oriented; and

a termination section located at the end portion configured to angle around the corner, the termination section comprising a flared end forming an angle of between about 130 degrees and about 160 degrees with the vertically oriented end portion and configured to direct at least one of fluid, particles and solvent away from the expansion joint system and away from the substrates and out of the joint.

19. The expansion joint system of claim 18, wherein the flared end of the termination section forms an angle of about 150 degrees with the vertically oriented end portion.

20. The expansion joint system of claim 18, wherein the termination section also comprises the core, and the elastomer which is layered on external surfaces of the termination section.

21. The expansion joint system of claim 18, wherein the system is factory fabricated as one piece.

22. The expansion joint system of claim 18, wherein the core comprises open celled foam comprising a plurality of individual laminations assembled to construct a laminate, one or more of the laminations being infused with at least one of a fire retardant material and an acrylic.

23. The expansion joint system of claim 18, wherein the core comprises open celled foam, and the open celled foam is infused with a fire retardant material selected from the group consisting of:

aluminum tri-hydrate, a metal oxide, a metal hydroxide, aluminum oxide, antimony oxide, antimony hydroxide, an iron compound, ferrocene, molybdenum trioxide, a nitrogen based compound, and a combination thereof.

24. The expansion joint system of claim 23, wherein the fire retardant material is infused in the open celled foam in a ratio about 3.5:

1 to about 4;

1 by weight.

25. The expansion joint system of claim 18, wherein the core comprises at least one of a polyurethane open celled foam and a polyether open celled foam.

26. The expansion joint system of claim 18, wherein the elastomer disposed on the core comprises a silicone.

27. The expansion joint system of claim 18, wherein the system is a bridge expansion joint system.

28. A fire and water resistant expansion joint system, comprising:

a first substrate;

a second substrate; and

an expansion joint system located between the first substrate and the second substrate, the expansion joint system comprising;

foam including a fire retardant material in the foam;

a layer of an elastomer disposed on the foam, the foam and the layer of elastomer disposed thereon forming an elongated section, the elongated section configured to be oriented vertically in a joint between the first substrate and the second substrate; and

a termination section located at one end of the elongated section and comprising a flared end forming an angle of between about 130 degrees and about 160 degrees with the elongated section and configured to direct water away from the expansion joint system and away from the substrates and out of the joint.

29. The fire and water resistant expansion joint system of claim 28, further comprising a layer of an intumescent material disposed on the foam.

30. The fire and water resistant expansion joint system of claim 28, wherein the termination section also comprises the foam, and the elastomer which is layered on external surfaces of the termination section.

31. The fire and water resistant expansion joint system of claim 28, wherein the elongated section and the termination section each comprise the layer of the elastomer tooled in at least one of a bellows profile and a bullet profile.

32. A fire and water resistant expansion joint system, comprising:

a first substrate;

a second substrate; and

an expansion joint system located between the first substrate and the second substrate, the expansion joint system comprising;

foam including a fire retardant material in the foam;

a layer of an elastomer disposed on the foam, the foam and the layer of elastomer disposed thereon forming an elongated section, the elongated section configured to be oriented horizontally in a joint between the substantially coplanar first substrate and the second substrate, and having an end portion configured to angle around a corner, the end portion being vertically oriented; and

a termination section located at the vertically oriented end portion configured to angle around the corner, the termination section comprising a flared end forming an angle of between about 130 degrees and about 160 degrees with the vertically oriented end portion and configured to direct water away from the expansion joint system and away from the substrates and out of the joint.

33. A termination section comprising:

a core including a fire retardant material in the core; and

a layer of elastomer disposed on the core;

wherein the termination section is configured for an expansion joint system comprising an elongated section configured to be oriented vertically in a joint between substantially coplanar substrates,

wherein the termination section is configured to be located at one end of the elongated section and comprises a flared end configured to form an angle of between about 130 degrees and about 160 degrees with the elongated section and direct at least one of fluid, particles and solvent away from the expansion joint system and away from the substrates and out of the joint.

34. A kit comprising a package and the termination section of claim 33.

35. The kit of claim 34, wherein the expansion joint system is a bridge expansion joint system.

36. A termination section comprising:

a core including a fire retardant material in the core; and

a layer of elastomer disposed on the core, wherein the termination section is configured for an expansion joint system comprising an elongated section configured to be oriented horizontally in a joint between substantially coplanar substrates and having an end portion configured to angle around a corner, the end portion being vertically oriented,

wherein the termination section is configured to be located at the end portion to angle around the corner and comprises a flared end configured to form an angle of between about 130 degrees and about 160 degrees with the vertically oriented end portion and direct at least one of fluid, particles and solvent away from the expansion joint system and away from the substrates and out of the joint.

37. A kit comprising a package and the termination section of claim 36.

38. A kit comprising:

a termination section configured to attach to an elongated section of an expansion joint system, the elongation section configured to be oriented in a joint between substrates, the termination section comprising;

a core including a fire retardant material in the core; and

a layer of elastomer disposed on the core, wherein the termination section comprises a flared end configured to form an angle of between about 130 degrees and about 160 degrees with a portion of the elongated section, and direct at least one of fluid, particles and solvent away from the expansion joint system and away from the substrates and out of the joint.

39. The kit of claim 38, further comprising an adhesive.

40. An expansion joint system, comprising:

foam;

an elongated section configured to be oriented in a joint between substrates and comprising the foam;

a termination section located at one end of the elongated section and comprising a flared end forming an angle of between about 130 degrees and about 160 degrees with the elongated section, the foam configured to direct at least one of fluid, particles and solvent away from the expansion joint system and away from the substrates and out of the joint.

41. The expansion joint system of claim 40 comprising a water resistant layer on the foam.

42. The expansion joint system of claim 40 including a fire retardant material in the foam.