Fire and water resistant expansion and seismic joint system

• US 9,689,157 B1
• Filed: 08/08/2014
• Issued: 06/27/2017
• Est. Priority Date: 03/24/2009
• Status: Active Grant

• Current Assignee: Emseal Joint Systems Limited
• Original Assignee: Emseal Joint Systems Limited
• Inventors: Hensley, Lester, Witherspoon, Bill
• Primary Examiner(s): Gilbert, William
• Application Number:
  US14/455,398
• Time in Patent Office: 1,054 Days
• Field of Search: 52395, 5239601, 52465, 52466, 52467, 52468, 52232, 52317, 52393, 5239603, 5239604, 5239607, 5239606, 525861, 525862, 404 47, 404 68
• CPC Class Codes: C09K 21/00 Fireproofing materials for use in a particular application, see the relevant places, e.g. fireproofing of wood B27K, of polymers C08, of textiles D06M, of paper D21H; fireproof paints C09D5/18
• 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 1/6801 Fillings therefor
• CPC Class Codes: E04B 1/6803 Joint covers E04B1/6815 takes precedence
• CPC Class Codes: E04B 1/6804 specially adapted for floor parts
• CPC Class Codes: E04B 1/6812 Compressable seals of solid form
• CPC Class Codes: E04B 1/94 against fire fire protection of partitions E04B2/7403, E04B2/7409; supporting constructions for ceilings having the capability of expansion in case of fire E04B9/08; fire-fighting A62C, e.g. fire prevention or containment A62C2/00; impregnation of wood or similar materials B27K; fireproof paints C09D5/18; fireproofing materials C09K21/00; flame-resistant papers D21H5/0002; coverings or linings, e.g. for walls or ceilings, in general E04F13/00; fireproof doors E06B5/16; firebreak devices for pipes or the like passing through walls F16L5/04; protection of pipes by means of non-inflammable material F16L57/04
• CPC Class Codes: E04B 1/941 Building elements specially adapted therefor
• CPC Class Codes: E04B 1/947 by closing openings in walls or the like in the case of fire fire-proof doors E06B5/16
• 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

Abstract

A fire and water resistant expansion joint system has a cover plate; a spline attached to the cover plate along a first edge of the spline; and two portions of foam, each portion being located on an opposing face of the spline. The foam has a fire-retardant material infused therein. The spline depends from the cover plate and is positioned in a gap between substantially coplanar substrates such that the cover plate overlies the gap. Each portion of the foam is compressed between a respective face of the spline and a face of one of the coplanar substrates.

Claims

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

a cover plate;

a spline attached to the cover plate;

foam having a fire retardant material infused therein located on a first face and a second face of the spline;

wherein the spline depends from the cover plate and is configured to be positioned in a gap between substrates such that the cover plate overlies the gap; and

wherein the foam is compressible between the first face of the spline and one of the substrates and the foam is compressible between the second face of the spline and the other of the substrates, wherein the fire retardant infused foam has a density when compressed in a range of about 200 kg/m³ to about 700 kg/m³, and the fire and water resistant expansion joint system and the fire retardant infused foam are capable of withstanding exposure to a temperature of about 540°

C. at about five minutes, and are configured to pass testing mandated by UL 2079.

2. The expansion joint system of claim 1, wherein a ratio of fire retardant material infused into the first foam and the second foam is in a range of about 3.5:

1 to about 4;

1.

3. The expansion joint system of claim 2, wherein the fire retardant material infused into the foam comprises aluminum tri-hydrate.

4. The expansion joint system of claim 1, wherein the foam comprises a plurality of laminations into which the fire retardant material is infused.

5. The expansion joint system of claim 1, wherein the foam comprises a block of foam.

6. The expansion joint system of claim 5, wherein the spline is of monolithic construction.

7. The expansion joint system of claim 1, comprising a layer of elastomer on the foam.

8. The fire and water resistant expansion joint system of claim 1, wherein the fire and water resistant expansion joint system and the fire retardant infused foam are capable of withstanding exposure to a temperature of about 930°

C. at about one hour.

9. The fire and water resistant expansion joint system of claim 1, wherein the fire and water resistant expansion joint system and the fire retardant infused foam are capable of withstanding exposure to a temperature of about 1010°

C. at about two hours.

10. The fire and water resistant expansion joint system of claim 1, wherein the fire and water resistant expansion joint system and the fire retardant infused foam are capable of withstanding exposure to a temperature of about 1260°

C. at about eight hours.

12. The fire and water resistant expansion joint system of claim 1, wherein the fire and water resistant expansion joint system and the fire retardant infused foam are capable of withstanding exposure to a temperature of about 1052°

C. at about three hours.

13. The fire and water resistant expansion joint system of claim 1, wherein the fire and water resistant expansion joint system and the fire retardant infused foam are capable of withstanding exposure to a temperature of about 1093°

C. at about four hours.

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

a cover plate;

a spline attached to the cover plate;

foam having a fire retardant material infused therein located on a first face and a second face of the spline;

wherein the spline depends from the cover plate and is configured to be positioned in a gap between substrates such that the cover plate overlies the gap; and

wherein the foam is compressible between the first face of the spline and one of the substrates and the foam is compressible between the second face of the spline and the other of the substrates, wherein the fire retardant infused foam has a density when compressed in a range of about 200 kg/m³ to about 700 kg/m³, and the fire and water resistant expansion joint system and the fire retardant infused foam are configured to maintain fire resistance at a temperature of about 540°

C. at about five minutes, and are configured to pass testing mandated by UL 2079.

14. The expansion joint system of claim 11, wherein the system and the fire retardant infused foam are configured to maintain fire resistance at a temperature of about 930°

C. at about one hour.

15. The expansion joint system of claim 11, wherein the system and the fire retardant infused foam are configured to maintain fire resistance at a temperature of about 1010°

C. at about two hours.

16. The expansion joint system of claim 11, wherein the system and the fire retardant infused foam are configured to maintain fire resistance at a temperature of about 1052°

C. at about three hour.

17. The expansion joint system of claim 11, wherein the system and the fire retardant infused foam are configured to maintain fire resistance at a temperature of about 1093°

C. at about four hours.

18. The expansion joint system of claim 11, wherein the system and the fire retardant infused foam are configured to maintain fire resistance at a temperature of about 1260°

C. at about eight hours.