Abstract
The disclosure relates to a method for controlling carbonation synthesis of silicon and/or aluminium carbonate minerals, wherein the concentration of dissolved silicon and/or aluminium in a mix to be cured is adjusted to at least 1 mmol/1 before curing he mix with gas comprising carbon dioxide (CO2) having a partial pressure of CO2 of at least 0.15 bar. In some embodiments of the isclosure an alkaline substance is added to the raw material to provide the mix where the total concentration of dissolved silicon and/or aluminium of at least 1 mmol/l. The disclosure also relates to a product obtainable by the methods of the disclosure as well as to the use of the product as building material, preferably for producing concrete-like products, more preferably for elements, most preferably for pre-casted elements and to the use of the method in construction industry or for production of elements and/or pre-casted elements.
Patent family as of 15.11.2024
CN115702128 A 20230214 CN202180042722 20210614
CN115702128 B 20240426 CN202180042722 20210614
EP4164997 A1 20230419 EP20210735336 20210614
FI130869 B 20240429 FI20200005623 20200615
FI20205623 A 20211216 FI20200005623 20200615
US2023242456 AA 20230803 US20220010167 20210614
WO21255340 A1 20211223 WO2021FI50446 20210614
| Translated title of the contribution | Controlling Carbonation |
|---|---|
| Original language | Finnish |
| Patent number | FI130869 B |
| Filing date | 15/06/20 |
| Publication status | Published - 29 Apr 2024 |
| MoE publication type | H1 Granted patent |