Methods For Producing Air-Cured Fiber Cement Products
Patent No. EP3523263 (titled "Methods For Producing Air-Cured Fiber Cement Products") was filed by Etex Services on Oct 5, 2017. The application was issued on Oct 5, 2022.
Patent Summary
Method for producing air-cured fiber cement products like roofing tiles using waste fiber cement powder. The key steps involve mixing cured fiber cement powder from recycled products into fresh fiber cement slurry in an optimized range of 5-40% by weight on a dry basis. The green fiber cement sheets are pressed and then air-cured to make the final products. This allows using fiber cement waste instead of virgin materials without negatively impacting water absorption or density.
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Date
Description
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EP3523263
- Application Number
- EP17780716A
- Filing Date
- Oct 5, 2017
- Status
- Granted And Under Opposition
- Sep 2, 2022
- Publication Date
- Oct 5, 2022
- External Links
- Slate, Register , Google Patents