Method of producing fibre-containing building members

Details Method of producing fibre-containing building members Method of producing fibre-containing building members

B - Operations, Transporting

28

B

25/111

B28B 1/52 (2006.01) C04B 11/00 (2006.01) C04B 11/024 (2006.01) C04B 28/14 (2006.01)

Patent

CA 1059736

ABSTRACT OF THE DISCLOSURE This invention relates to the production of building members and, in particular to the production of plates. The member is produced by forming a mixture of a fibrous substance with a sulfatic binding agent and an amount of water which is a multiple of the amount of water necessary to set the binding agent. The main amount of excess water is removed from the fleece mechanically before the setting process begins, the mould is shaped and subsequently dried. The process is characterized in that the sulfatic binding agent is a calcium sulfate hemihydrate in which the specific surface area of the particles, in the aqueous suspension, does not alter or alters only to an unsubstantial amount until the main amount of excess water is removed mechanically from the fleece.

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