Lightweight cementitious compositions and building products and methods for making same
US8070878B2 · kind B2 · utility
40Cited by
34References
33Claims
0Family size
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Key dates
| Filing date | Jul 5, 2007 |
| Grant date | Dec 6, 2011 |
| Priority date | — |
| Expiry date | Sep 8, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/10
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Cementitious compositions and methods for making same, in which the cementitious compositions include 35-60 wt. % cementitious reactive powder (also termed Portland cement-based binder), 2-10 wt. % expanded and chemically coated perlite filler, 20-40 wt. % water, entrained air, and optional additives such as water reducing agents, chemical set-accelerators, and chemical set-retarders. In addition, the lightweight cementitious compositions may contain 0-25 wt. % on a wet basis secondary fillers such as expanded clay, shale aggregate, and pumice.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.