Fire-protection walls of cementitious composite materials

• US 7,658,042 B2
• Filed: 10/25/2005
• Issued: 02/09/2010
• Est. Priority Date: 10/25/2004
• Status: Expired due to Fees

• Current Assignee: Composite Support & Solutions, Inc.
• Original Assignee: Composite Support & Solutions, Inc.
• Inventors: Hiel, Clement
• Primary Examiner(s): Chilcot, Jr.; Richard E
• Assistant Examiner(s): Wendell; Mark R
• Application Number:
  US11/666,197
• Publication Number:
  US 20080134628A1
• Time in Patent Office: 1,568 Days
• Field of Search: 522/89, 523/20, 522/06, 522/32, 523/08, 524/76, 522/41, 523/93, 522/33, 523/17, 527/62, 527/64, 52775-780, 527/831.3, 181284-286
• US Class Current: 52/289
• CPC Class Codes: C04B 2111/28 Fire resistance, i.e. materials resistant to accidental fires or high temperatures
• CPC Class Codes: C04B 28/34 containing cold phosphate binders
• CPC Class Codes: C04B 28/348 the starting mixture also containing one or more reactive oxides
• CPC Class Codes: C04B 38/10 by using foaming agents C04B38/02 takes precedenceor by using mechanical means, e.g. adding preformed foam
• 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

Abstract

A highly protective firewall (13) supported between upstanding columns or beams (15). The firewall is made of an inorganic cementitious material which is preferably inorganic phosphate cement. In one form, the firewall comprises a group of vertically stacked panels (14) made of such material, and the panels are in turn formed by a plurality of elongated and vertically stacked hollow members (21) of the same material.

Claims

1. A firewall system comprising an upright firewall supported between spaced-apart vertical beams, the firewall being made of an inorganic cementitious material, the firewall comprising a vertically stacked series of panels, the panels each comprising a plurality of stacked elongated rectangular members and an outer glass fiber fabric layer covering the elongated rectangular members, wherein the panels are individually and independently secured along the sides of the panels to the vertical beams.

2. The system defined in claim 1, wherein the cementitious material is inorganic phosphate cement.

3. The system of claim 2 in which the firewall has sealed interior air-filled spaces.

4. The system of claim 3, in which the beams are metal I beams having spaced-apart flanges, and the panels make a snug slip fit between the flanges.

5. The system of claim 4, wherein the panels have spacers at opposite ends to provide said slip fit.

6. The system of claim 5, wherein exposed surfaces of the metal I beams are covered by plates of said inorganic phosphate cement.

7. The system of claim 6, wherein the panels are secured to the beams by metal fasteners having exposed surfaces which are covered with fittings of said inorganic phosphate cement.

8. The system of claim 1, wherein the elongated rectangular members are hollow, stacked vertically, and extend horizontally across a length of each of the panels.

9. The system of claim 8, wherein the elongated rectangular members are made of said inorganic cementitious material.

10. The system of claim 9, wherein the elongated rectangular members further comprise a foam material in the hollow.

11. The system of claim 1, wherein the outer glass fiber fabric layer is impregnated with cementitious material.

12. The system of claim 1, wherein each of the panels has a concave lower end and a convex upper end.

13. The system of claim 5, wherein top surfaces of the metal I beams are covered by caps of said inorganic phosphate cement.

14. The system of claim 1, wherein the firewall includes fibrous strength reinforcing material.

15. A firewall comprising:

a plurality of vertically aligned beams; and

a plurality of panels stacked vertically between each of the vertically aligned beams, wherein each of the panels comprises;

a plurality of vertically stacked elongated and hollow rectangular members;

an outer glass fiber fabric layer covering the plurality of rectangular members; and

spacers attached and extending perpendicularly along the transverse axis on both sides of each of the panels,

wherein the rectangular members and outer glass fiber fabric layer are made of glass fiber fabric impregnated with inorganic cementitious material; and

wherein each of the panels has a concave lower end and a convex upper end.

16. The firewall of claim 15, further comprising:

plates covering sides of the beams, and

caps covering a top of the beams,

wherein the plates and the caps are made of said inorganic cementitious material.

17. The firewall of claim 15, wherein the rectangular members further comprise a foam material in the hollow.

18. The firewall of claim 15, wherein the beams are I-beams and the spacers and ends of the panels fit within flanges of the I-beams.

19. The firewall of claim 18, further comprising:

threaded fasteners securing the panels to the I-beams, each fastener having a head;

washers surrounding each head of the fasteners, the washers being made of said inorganic cementitious material; and

plugs secured to the washers to cover the head of the fasteners, the plugs being made of said inorganic cementitious material.