Glass-laminated concrete building element
US5763090A · kind A · utility
Inventor
Key dates
| Filing date | Nov 14, 1995 |
| Grant date | Jun 9, 1998 |
| Priority date | — |
| Expiry date | Nov 14, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/232
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A building element has a slab of concrete having a face, a sheet of glass juxtaposed with the face, and a layer of mortar between and bonded monolithically to the glass sheet and the slab face. The mortar consists essentially of a fine-particulate neutral aggregate, cement, and an aqueous dispersion of a polyacrylic-acid derivative having a logarithmic decrement according to DIN 53,445 which is at a maximum below 0.degree. C. The aqueous dispersion is in an amount insufficient to fully hydrate the cement. In addition the mortar layer has a thickness and a content of polyacrylic acid sufficient to permit differential thermal expansion of the slab and glass without cracking of the mortar layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.