Process for accelerating hardening of cement with fibre-reinforced and cement-bound plates
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United States of America Patent
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May 24, 1988
Grant Date -
N/A
app pub date -
Jan 22, 1986
filing date -
Jan 23, 1985
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The invention relates to a process for accelerating hardening of cement in fibre-reinforced and cement-bond plates and solids respectively. The essence of the process lies in that a composition known in itself containing water, fibrous material and cement is placed between the pressure plates of a press, compressed, simultaneously with pressing a flange of increased density is formed on the profile to be produced; the medium between the gasproof or quasi gasproof boundary surface is carbonized wih CO.sub.2 gas thereafter pressure is reduced.
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