Hydraulic binder having low CO2 emission level

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.

Dependencies are inferred from the claim text.