Production of thin, plastic-reinforced, hydraulically bound boards
AssigneeStamicarbon B.V.
InventorJan M. J. M. Bijen
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Abstract
A continuous process for manufacturing composite articles, such as thin hydraulically bound boards, which are reinforced with separate layers of a stretched, fibrillated, extended plastics net reinforcing material is disclosed. An aqueous suspension of cement or other material is applied onto and into the plastics network, dewatered, taken up and rolled into a composite cylinder until the desired thickness is reached. The cylinder is then cut axially, given the desired shape and cured.
Claims6
A continuous process for the manufacture of composite articles consisting of a hydraulically bound material having an extended net plastics material incorporated therein, said process including the successive steps of
- (a) contacting a stretched, fibrillated, extended plastics net reinforcing material in the form of a continuous belt with an aqueous suspension of hydraulic binding material thereby forming a thin layer of aqueous suspension on and in the net while adjusting the rate of application and thickness of the thin layer as it is formed;
- (b) removing excess water from the thus formed thin layer;
- (c) rolling the dewatered thin layer onto a forming roller and continuing such rolling until the predetermined number of continuous net layers desired in the final product are formed in the composite;
- (d) removing the rolled composite from the roller when the predetermined thickness is obtained;
- (e) shaping the composite;
- and
- (f) hardening the shaped composite to form the desired shaped composite article.
Dependencies are inferred from the claim text.