Fire-proof thermal-insulation board of B02 autoclaved aerated lightweight concrete and method for preparing same
US10711456B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 11, 2018 |
| Grant date | Jul 14, 2020 |
| Priority date | — |
| Expiry date | Oct 11, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P40/60
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Disclosed is a fire-proof thermal-insulation board of aerated concrete of B02-level lightweight autoclaved sand and its preparation method. Components of the thermal-insulation board are quartz sand, lime, cement, gypsum, aluminum powder, and foam stabilizer, weight percentages of the components are: 56%˜60% of the quartz sand, 8%˜11% of the lime, 20%˜30% of the cement, 2%˜4% of the gypsum, 0.24%˜0.26% of the aluminum powder, and 0.02%˜0.03% of the foam stabilizer. The fire-proof thermal-insulation board is made of an inorganic non-metallic material with lightweight, non-inflammable property and good thermal-insulation performance. The present disclosure well solves the thermal bridge problem of external wall of the building, and has A1-level fire-proof performance and good durability with the same service life as the building. The present disclosure overcomes low product strength, and inconvenience in transportation and construction in the prior art, reduces types of admixture used in the manufacturing process, and reduces the manufacturing cost.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.