Ready-to-use cement composition for concrete and mortars resistant to the very high temperatures encountered in chimney flues incorporates an artificial Portland cement combined with an air-entraining additive

摘要

The composition of a concrete or mortar resistant to very high temperatures, ready for use and in the dry state and made up of a cement, some glass fibres and a granulate is characterized in that it incorporates an artificial Portland cement combined with an air-entraining additive. An independent claim is included for the fabrication of a flue using a concrete or mortar made of this composition.