Hydraulic binder having low CO.sub.2 emission level
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United States of America Patent
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Nov 4, 2008
Grant Date -
Apr 19, 2007
app pub date -
Oct 16, 2006
filing date -
Oct 17, 2005
priority date (Note) -
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status (Latency Note)
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Abstract
The invention relates to a hydraulic binder containing, in percentage by weight: from 1.1 to 9% of tricalcium aluminate from 1.5 to 13.5% of tetracalcium ferroaluminate from 0.5 to 1.5% of dodecacalcium heptaaluminate from 0.5 to 1.5% of tetracalcium trialuminate sulphate from 0 to 0.8% of dicalcium silicoaluminate from 5 to 70% of pozzolanic material(s) from 0 to 6% of calcium sulphate the remainder being composed of the non-aluminous constituents of at least one Portland-type clinker.It also relates to concretes or mortars prepared using a binder of this type.
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