USE OF A FRACTION OBTAINED FROM USED CONCRETE AS SAND FOR THE PREPARATION OF CONCRETE OR MORTAR
The present invention relates to the use of a fraction having a particle size d10 greater than or equal to 150 µm, said fraction having a loss on ignition ranging from 3% to 30% and comprising: - from 20% to 80% of SiO2 ; - from 5% to 40% of CaO; - from 1% to 15% of Al2O3; and - from 0.5% to 4% of F...
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Format | Patent |
Language | English French |
Published |
09.02.2023
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Abstract | The present invention relates to the use of a fraction having a particle size d10 greater than or equal to 150 µm, said fraction having a loss on ignition ranging from 3% to 30% and comprising: - from 20% to 80% of SiO2 ; - from 5% to 40% of CaO; - from 1% to 15% of Al2O3; and - from 0.5% to 4% of Fe2O3; as sand for the preparation of concrete or mortar.
La présente invention a pour objet l'utilisation d'une fraction dont la granulométrie d10 est supérieure ou égale à 150 µm, ladite fraction présentant une perte au feu variant de 3% à 30% et comprenant : - de 20% à 80% de SiO2 ; - de 5% à 40% de CaO; - de 1% à 15% d'Al2O3; et - de 0,5% à 4% de Fe2O3; comme sable pour la préparation de béton ou de mortier. |
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AbstractList | The present invention relates to the use of a fraction having a particle size d10 greater than or equal to 150 µm, said fraction having a loss on ignition ranging from 3% to 30% and comprising: - from 20% to 80% of SiO2 ; - from 5% to 40% of CaO; - from 1% to 15% of Al2O3; and - from 0.5% to 4% of Fe2O3; as sand for the preparation of concrete or mortar.
La présente invention a pour objet l'utilisation d'une fraction dont la granulométrie d10 est supérieure ou égale à 150 µm, ladite fraction présentant une perte au feu variant de 3% à 30% et comprenant : - de 20% à 80% de SiO2 ; - de 5% à 40% de CaO; - de 1% à 15% d'Al2O3; et - de 0,5% à 4% de Fe2O3; comme sable pour la préparation de béton ou de mortier. |
Author | POILLOT, Julien GUILLEMIN, Hervé JACOB, Yvan-Pierre |
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DocumentTitleAlternate | UTILISATION D'UNE FRACTION OBTENUE À PARTIR D'UN BÉTON USAGÉ COMME SABLE POUR LA PRÉPARATION DE BÉTON OU MORTIER |
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Snippet | The present invention relates to the use of a fraction having a particle size d10 greater than or equal to 150 µm, said fraction having a loss on ignition... |
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SubjectTerms | ARTIFICIAL STONE CEMENTS CERAMICS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE LIME, MAGNESIA METALLURGY REFRACTORIES SLAG TREATMENT OF NATURAL STONE |
Title | USE OF A FRACTION OBTAINED FROM USED CONCRETE AS SAND FOR THE PREPARATION OF CONCRETE OR MORTAR |
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