Process for producing reinforced cementitious compositions and the products produced thereby
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United States of America Patent
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-
Dec 4, 1990
Grant Date -
N/A
app pub date -
Mar 16, 1989
filing date -
Mar 18, 1988
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A process for producing reinforced cementitious compositions in which the following constituents are mixed in the aqueous phase in the following order: about 35-55 parts by weight of water mixed with about 3-12 parts of a polymer, by weight of dry polymer; up to about 5 parts of a water-reducing auxiliary agent and/or a liquifying agent; from about 15-30 parts of metakaolin; from about 50-120 parts of silica sand; and about 100 parts of cement. Continuous mixing is maintained until a homogeneous, thixotropic paste is obtained. Then between 2 and 15% by weight of alkaline-resistant glass fibers, relative to the weight of the paste, is introduced into the paste. The product produced by this method is particularly suitable for use as a mortar or paste which may be easily sprayed upon vertical surfaces and as hydraulic concretes, resistant to the effects of weather and aging.
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