US 11,884,590 B2
Fire resistant fibre cement compositions
Tassilo Folker Rinder, Mollis (CH); Oliver Peter Günter Millon, Wädenswil (CH); and Carsten Zanders, Mollis (CH)
Assigned to Swisspearl Group AG, Niederurnen (CH)
Appl. No. 17/792,487
Filed by Swisspearl Group AG, Niederurnen (CH)
PCT Filed Jun. 1, 2022, PCT No. PCT/EP2022/064888
§ 371(c)(1), (2) Date Jul. 13, 2022,
PCT Pub. No. WO2023/280484, PCT Pub. Date Jan. 12, 2023.
Claims priority of application No. 21184330 (EP), filed on Jul. 7, 2021.
Prior Publication US 2023/0192547 A1, Jun. 22, 2023
Int. Cl. C04B 20/00 (2006.01); C04B 14/38 (2006.01); C04B 14/42 (2006.01); C04B 16/02 (2006.01); C04B 28/04 (2006.01); C04B 40/00 (2006.01); E04D 1/16 (2006.01); E04D 3/04 (2006.01); E04F 13/14 (2006.01); C04B 111/00 (2006.01); C04B 111/28 (2006.01)
CPC C04B 20/0052 (2013.01) [C04B 14/38 (2013.01); C04B 14/42 (2013.01); C04B 16/02 (2013.01); C04B 28/04 (2013.01); C04B 40/0064 (2013.01); E04D 1/16 (2013.01); E04D 3/04 (2013.01); E04F 13/14 (2013.01); C04B 2111/00586 (2013.01); C04B 2111/28 (2013.01)] 14 Claims
 
1. A fibre cement composition, comprising:
at least one hydraulic binder,
an organic processing aid fibre as the sole organic fibre comprised in the fibre cement composition, and wherein the organic processing aid fibre consists of wood pulp, and
at least one inorganic fibre, and wherein the inorganic fibre is basalt fibre, or a combination of basalt fibre and glass fibre, the inorganic fibre having an average length of about 2 mm to about 8 mm,
wherein the fibre cement composition comprises the organic fibre in an amount of more than 2 and up to 10 dry weight percent, based on the total dry weight of the fibre cement composition.