CALCIUM SULFOALUMINATE COMPOSITE BINDERS
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United States of America Patent
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Jul 28, 2016
app pub date -
Sep 2, 2014
filing date -
Sep 2, 2014
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Abstract
The present invention relates to composite binders containing calcium sulfoaluminate cement and supplementary cementitious material, wherein a weight ratio of calcium sulfate to the sum of ye'elimite, aluminates and ferrites (R$/(Y+A+F)) ranges from 0.5 to 0.85, to a method of manufacturing them comprising the steps: a) providing at least one calcium sulfoaluminate cement b) providing at least one supplementary cementitious material c) mixing 10 to 90% by weight calcium sulfoaluminate cement(s) with 10 to 90% by weight supplementary cementitious material(s), and to their use for making hydraulically setting building materials and special construction chemical compositions.
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