Fire-resistant wood composites, in particular wallboards, process for manufacture of same and use of a bonding agent in the manufacture
First Claim
1. Fire-resistant wood composite containing a wood component selected from the group consisting of wood chips, wood fiber, sawdust and wood wool, and a bonding agent, characterized in that said bonding agent consists of a finely-ground hydraulic blast-furnace slag which is activated by an activator having an alkaline reaction and water glass.
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Accused Products
Abstract
Fire-resistant wood composites, in particular wallboards, which in addition to a wood component contain a bonding agent consisting of a finely-ground hydraulic blast-furnace slag which is activated by an activator having an alkaline reaction, advantageously by waterglass and alkali hydroxide. The invention also relates to a process for manufacture of such wood composites and to an use of finley-ground hydraulic blast-furnace slag as a bonding agent in the manufacture of such wood composites.
11 Citations
13 Claims
- 1. Fire-resistant wood composite containing a wood component selected from the group consisting of wood chips, wood fiber, sawdust and wood wool, and a bonding agent, characterized in that said bonding agent consists of a finely-ground hydraulic blast-furnace slag which is activated by an activator having an alkaline reaction and water glass.
- 4. Process for the manufacture of fire-resistant wood composites, in particular wallboards, by bringing a wood component selected from the group consisting of wood chips, wood fiber, sawdust and wood wool, into contact with a bonding agent and an activator and thereafter forming the mixture so obtained to the desired shape under the effect of heat and pressure, characterized in that a finely-ground hydraulic blast-furnace slag is used as a bonding agent, activated by an alkaline salt and a compound having an alkaline reaction.
Specification