FIRE AND WATER RESISTANT EXPANSION JOINT SYSTEM

• US 20150068139A1
• Filed: 11/13/2014
• Published: 03/12/2015
• Est. Priority Date: 11/20/2008
• Status: Active Grant

• Current Assignee: Emseal Joint Systems Limited
• Original Assignee: Emseal Joint Systems Limited
• Inventors: Witherspoon, Bill
• Granted Patent: US 9,528,262 B2
• Time in Patent Office: Days
• US Class Current: 52/167.1
• CPC Class Codes: C08J 2201/038 Use of an inorganic compound to impregnate, bind or coat a foam, e.g. waterglass
• CPC Class Codes: C08J 2205/05 Open cells, i.e. more than 50% of the pores are open
• CPC Class Codes: C08J 2375/04 Polyurethanes
• CPC Class Codes: C08J 2400/26 Elastomers
• CPC Class Codes: C08J 9/365 Coating
• CPC Class Codes: C08J 9/40 Impregnation
• CPC Class Codes: C08K 3/016 Flame-proofing or flame-retarding additives
• CPC Class Codes: E04B 1/66 Sealings damp-proof courses E04B1/644; fire-proof sealings E04B1/948; additions of anti-leak properties to plaster C04B; bituminous sealing masses C08L95/00; sealings for hydraulic engineering work in general E02B3/16; against ground humidity or ground water E02D31/02; coverings against rain or other precipitations of the atmosphere E04D; composition of material or manufacture of sealing foils, see the relevant classes for these foils
• 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 1/6806 Waterstops E04B1/6807 takes precedence
• CPC Class Codes: E04B 1/6812 Compressable seals of solid form
• CPC Class Codes: E04B 1/944 covered with fire-proofing material
• CPC Class Codes: E04B 1/948 Fire-proof sealings or joints for doors or windows E06B5/164
• CPC Class Codes: E04B 1/98 against vibrations or shocks on foundations E02D31/08; against mechanical destruction, e.g. by air-raids against incendiary damage only E04B1/94; finishing work therefor E04F; buildings withstanding earthquake or the like, shelters, arrangements of splintercatching walls E04H9/00
• CPC Class Codes: E04C 2/205 of foamed plastics, or of plastics and foamed plastics, optionally reinforced

Abstract

A fire resistant and water resistant expansion joint system comprises a compressed lamination of fire retardant infused open celled foam, one coat of an elastomeric waterproofing or water resistant material on the lamination, and another coat of an intumescent material on an opposing surface of the lamination, thereby providing fire resistance in one direction and water resistance in the opposite direction. The intumescent material may be further coated with a similar elastomeric material, thereby providing fire resistance in one direction and water resistance in both directions. In the alternative, the compressed lamination may comprise first and second opposing layers of intumescent material thereon each having a respective layer of elastomeric material to provide both water resistance and fire resistance in both directions.

Claims

1. An expansion joint system, comprising:

foam;

a fire retardant material included in the foam; and

the expansion joint system accommodates movement when installed between substrates, and the expansion joint system has an ability to withstand exposure to a temperature of about 540°

C. or greater for about five minutes.

2. The expansion joint system of claim 1, wherein the foam has a density when compressed in a range of about 200 kg/m³ to about 700 kg/m³.

3. The expansion joint system of claim 1, wherein the foam uncompressed has a density of about 130 kg/m³ to about 150 kg/m³.

4. The expansion joint system of claim 1, further comprising a water resistant layer.

5. The expansion joint system of claim 1, wherein the expansion joint system has the ability to withstand exposure to a temperature of about 930°

C. for about one hour.

6. The expansion joint system of claim 1, wherein the expansion joint system has the ability to withstand exposure to a temperature of about 1010°

C. for about two hours.

7. The expansion joint system of claim 1, wherein the expansion joint system has the ability to withstand exposure to a temperature of about 1260°

C. for about eight hours.

8. The expansion joint system of claim 1, wherein the ratio of the fire retardant material included in the foam is in a range of about 3.5:

1 to about 4;

1 by weight.

9. The expansion joint system of claim 1, wherein the fire retardant material included in the foam is water-based aluminum tri-hydrate.

10. The expansion joint system of claim 1, wherein the fire retardant material included in the foam is selected from the group consisting of metal oxides, metal hydroxides, aluminum oxides, antimony oxides and hydroxides, iron compounds, ferrocene, molybdenum trioxide, nitrogen-based compounds, and combinations of the foregoing materials.

11. The expansion joint system of claim 1, wherein the movement is in response to thermal effects on, or seismic movement of, the substrates.

12. An expansion joint system, comprising:

foam;

a fire retardant material included in the foam;

a water resistant layer; and

the expansion joint system accommodates movement when installed between substrates, and the expansion joint system has an ability to withstand exposure to a temperature of about 1010°

C. or greater for about two hours.

13. The expansion joint system of claim 12, wherein the foam has a density when compressed in a range of about 200 kg/m³ to about 700 kg/m³.

14. The expansion joint system of claim 12, wherein the foam uncompressed has a density of about 130 kg/m³ to about 150 kg/m³.

15. The expansion joint system of claim 12, wherein the expansion joint system has the ability to withstand exposure to a temperature of about 1260°

C. for about eight hours.

16. The expansion joint system of claim 12, wherein the ratio of the fire retardant material included in the foam is in a range of about 3.5:

1 to about 4;

1 by weight.

17. The expansion joint system of claim 12, wherein the fire retardant material included in the foam is water-based aluminum tri-hydrate.

18. The expansion joint system of claim 12, wherein the fire retardant material included in the foam is selected from the group consisting of metal oxides, metal hydroxides, aluminum oxides, antimony oxides and hydroxides, iron compounds, ferrocene, molybdenum trioxide, nitrogen-based compounds, and combinations of the foregoing materials.

19. The expansion joint system of claim 12, wherein the movement is in response to thermal effects on, or seismic movement of, the substrates.

20. An expansion joint system, consisting of:

foam;

a fire retardant material included in the foam; and

the expansion joint system accommodates movement when installed between substrates, and the expansion joint system has an ability to withstand exposure to a temperature of about 540°

C. or greater for about five minutes.

21. The expansion joint system of claim 20, wherein the expansion joint system has the ability to withstand exposure to a temperature of about 930°

C. for about one hour.

22. The expansion joint system of claim 20, wherein the expansion joint system has the ability to withstand exposure to a temperature of about 1010°

C. for about two hours.

23. The expansion joint system of claim 20, wherein the expansion joint system has the ability to withstand exposure to a temperature of about 1260°

C. for about eight hours.

24. The expansion joint system of claim 20, wherein the foam has a density when compressed in a range of about 200 kg/m³ to about 700 kg/m³.

25. The expansion joint system of claim 20, wherein the foam uncompressed has a density of about 130 kg/m³ to about 150 kg/m³.

26. The expansion joint system of claim 20, wherein the ratio of the fire retardant material included in the foam is in a range of about 3.5:

1 to about 4;

1 by weight.

27. The expansion joint system of claim 20, wherein the fire retardant material included in the foam is water-based aluminum tri-hydrate.

28. The expansion joint system of claim 20, wherein the fire retardant material included in the foam is selected from the group consisting of metal oxides, metal hydroxides, aluminum oxides, antimony oxides and hydroxides, iron compounds, ferrocene, molybdenum trioxide, nitrogen-based compounds, and combinations of the foregoing materials.

29. The expansion joint system of claim 20, wherein the movement is in response to thermal effects on, or seismic movement of, the substrates.

30. An expansion joint system, consisting of:

foam;

a fire retardant material included in the foam;

a water resistant layer; and

the expansion joint system accommodates movement when installed between substrates, and the expansion joint system has an ability to withstand exposure to a temperature of about 540°

C. or greater for about five minutes.

31. The expansion joint system of claim 30, wherein the expansion joint system has the ability to withstand exposure to a temperature of about 930°

C. for about one hour.

32. The expansion joint system of claim 30, wherein the expansion joint system has the ability to withstand exposure to a temperature of about 1010°

C. for about two hours.

33. The expansion joint system of claim 30, wherein the expansion joint system has the ability to withstand exposure to a temperature of about 1260°

C. for about eight hours.

34. The expansion joint system of claim 30, wherein the foam has a density when compressed in a range of about 200 kg/m³ to about 700 kg/m³.

35. The expansion joint system of claim 30, wherein the foam uncompressed has a density of about 130 kg/m³ to about 150 kg/m³.

36. The expansion joint system of claim 30, wherein the ratio of the fire retardant material included in the foam is in a range of about 3.5:

1 to about 4;

1 by weight.

37. The expansion joint system of claim 30, wherein the fire retardant material included in the foam is water-based aluminum tri-hydrate.

38. The expansion joint system of claim 30, wherein the fire retardant material included in the foam is selected from the group consisting of metal oxides, metal hydroxides, aluminum oxides, antimony oxides and hydroxides, iron compounds, ferrocene, molybdenum trioxide, nitrogen-based compounds, and combinations of the foregoing materials.

39. The expansion joint system of claim 30, wherein the movement is in response to thermal effects on, or seismic movement of, the substrates.