IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0763548
(2007-06-15)
|
등록번호 |
US7870698
(2011-01-03)
|
발명자
/ 주소 |
- Tonyan, Timothy D.
- Ullett, James M.
- Reicherts, James E.
|
출원인 / 주소 |
- United States Gypsum Company
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
13 인용 특허 :
53 |
초록
▼
A foundation system includes metal framing members that support a reinforced, lightweight, dimensionally stable cementitious panel. The foundation system is non-combustible, water durable, mold and rot resistant, and termite resistant. The panels employ one or more layers of a continuous phase resul
A foundation system includes metal framing members that support a reinforced, lightweight, dimensionally stable cementitious panel. The foundation system is non-combustible, water durable, mold and rot resistant, and termite resistant. The panels employ one or more layers of a continuous phase resulting from the curing of an aqueous mixture of inorganic binder, for example, calcium sulfate alpha hemihydrate, hydraulic cement, an active pozzolan and lime. The continuous phase is reinforced with glass fibers and contains lightweight filler particles, for example, ceramic microspheres.
대표청구항
▼
What is claimed is: 1. A foundation system for a commercial or residential building, the foundation system comprising:at least one vertical exterior wall comprising a first exterior vertical wall diaphragm, a metal frame, and a second interior vertical wall diaphragm; the metal frame comprising vert
What is claimed is: 1. A foundation system for a commercial or residential building, the foundation system comprising:at least one vertical exterior wall comprising a first exterior vertical wall diaphragm, a metal frame, and a second interior vertical wall diaphragm; the metal frame comprising vertical metal studs, the first diaphragm and the second diaphragm at supported on opposed sides of the metal frame studs,ground in contact with at least a below ground level portion of an outer surface of the at least one exterior wall diaphragm,footings in contact with ground below the footings,the at least one exterior vertical wall diaphragm comprising at least one reinforced, lightweight, dimensionally stable structural cementitious panel, andthe frame further comprising upper horizontal members above the studs and lower horizontal members below the studs, the studs attached to the upper and lower horizontal members,the lower horizontal members resting on the footings, the studs attached to the upper and lower horizontal members, the upper and lower horizontal members selected from at least one member of the group consisting of a C-joist and a plate;metal bugle head screw fasteners with winged drillers located above the point and below the threads of the screw and protrude laterally from a shaft of the screw for fastening the structural cementitious panel to the metal studs;the second interior vertical wall diaphragm of the exterior wall comprising a layer of Type X fire rated gypsum wallboard, the Type X fire rated gypsum wallboard is only attached to the one side of the vertical metal studs opposed to the structural cementitious panel,the structural cementitious panel having a density of 65 to 90 pounds per cubic foot and capable of resisting shear loads when fastened to framing and comprising a continuous phase resulting from the curing of an aqueous mixture comprising, on a dry basis,49 to 68 weight % a blend of reactive powders,23 to 36.1 weight % lightweight filler particles comprising uniformly distributed ceramic microspheres, and5 to 20 weight % alkali-resistant glass fibers, andoptional superplasticizer,the continuous phase being uniformly reinforced with the glass fibers, wherein the glass fibers are monofilaments having a diameter of about 5 to 25 microns (micrometers) and a length of about 0.25 to 3 inches (6.3 to 76 mm),the lightweight filler particles having a particle specific gravity of from 0.02 to 1.00 and an average particle size of about 10 to 500 microns (micrometers),wherein the reactive powders comprise, on a dry basis,45 to 75 wt. % calcium sulfate alpha-hemihydrate,20 to 40 wt. % Portland cement,0.2 to 3.5 wt. % lime, and5 to 25 wt. % of an active pozzolan comprising silica fume,wherein the structural cementitious panel has a flexural strength, after being soaked in water for 48 hours, of at least 1650 psi (11.4 MPa) as measured by the ASTM C 947-03 test, effective 2003, andwherein the foundation system meets the 2 hour fire resistance test rating under ASTM E-119, effective 2003,wherein the structural cementitious panel has a thickness of about ½ to 1½ inches.
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