Glass fibre reinforced plasterboard and a method for producing same
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United States of America Patent
Stats
-
Dec 22, 1992
Grant Date -
N/A
app pub date -
Apr 5, 1991
filing date -
Apr 12, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Glass fibre reinforced plasterboard comprising a gypsum matrix of high density with embedded staple glass fibres therewith forming a pressure resistant solid body frame in which are embedded a plurality of very small hollow spaces of 5-350 .mu.m diameter, produced by a fine-pore foam or at least partially by small particles of non-porous and non-water absorbing fillers. During the manufacturing process of such glass fibre reinforced gypsum board, the gypsum and the fibre pieces are given only so much water that the water/gypsum ratio does not exceed 0.6, whereafter a foam and/or pourable or free-flowing fillers are added in such quantities that the apparent density of the entire board is at least 20% smaller than the density of the bonding means component of the matrix and the paste are subjected while being formed, to a vibration.
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International Classification(s)
Cited Art Landscape
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