Lightweight, fiber-reinforced cementitious panels
US7732032B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 30, 2004 |
| Grant date | Jun 8, 2010 |
| Priority date | — |
| Expiry date | Dec 30, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24777
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Lightweight, fiber reinforced, cementitious panels possessing exceptional toughness for use as building components in applications such as roofing elements, siding elements, framing and sheathing elements, and substrate elements for installation of floor finishes in residential and other building construction types. The panels employ a continuous phase resulting from the curing of an aqueous mixture of inorganic binder, PVA fibers and lightweight filler. The inorganic binder may be, for example, hydraulic cement alone, or a combination of hydraulic cement and pozzolan/s, or a combination of hydraulic cement, alpha hemihydrate, active pozzolan and optionally lime. The PVA fibers reinforce the continuous phase and are randomly distributed throughout the composite. Typical panels of the invention have a density of 60-85 pcf.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.