The present invention relates to a cementitious mixture comprising a magnesium-iron solid solution silicate filler or aggregate. a strong base. one or more cementitious materials: and at most 12% water. The present invention further relates to use of the cementitious mixture for making an aqueous slurry, and a method of making a cementitious slurry
C04B 28/00 - Compositions pour mortiers, béton ou pierre artificielle, contenant des liants inorganiques ou contenant le produit de réaction d'un liant inorganique et d'un liant organique, p. ex. contenant des ciments de polycarboxylates
C04B 40/00 - Procédés, en général, pour influencer ou modifier les propriétés des compositions pour mortiers, béton ou pierre artificielle, p. ex. leur aptitude à prendre ou à durcir
The invention relates to a pozzolan mixture comprising between 5 and 80% of magnesium-iron solid solution silicates; between 5 and 80% of MgCOs X H20 where X=0-10; and between 2 and 30% of reactive silica; and having a free water content of at most 10% by total weight of mixture. The invention further relates to a method of making a cement slurry with a pozzolan mixture including the steps of: (i) reacting a magnesium-iron solid solution silicate with an acid and adding any extra magnesium-iron solid solution silicate to the products of the reaction to produce a pozzolan mixture comprising between 5 and 80% of magnesium-iron solid solution silicates: between 5 and 80% of MgCOs X H20, where X=0-10; between 2 and 30% of reactive silica: (ii) adding the products of step (i) to a slurry of cementitious material and water in a ratio of between 1:1.5 and 10:1 of cementitious material to the pozzolan mixture.
C04B 28/02 - Compositions pour mortiers, béton ou pierre artificielle, contenant des liants inorganiques ou contenant le produit de réaction d'un liant inorganique et d'un liant organique, p. ex. contenant des ciments de polycarboxylates contenant des ciments hydrauliques autres que ceux de sulfate de calcium
C04B 40/00 - Procédés, en général, pour influencer ou modifier les propriétés des compositions pour mortiers, béton ou pierre artificielle, p. ex. leur aptitude à prendre ou à durcir
C04B 103/00 - Fonctions ou propriétés de l'ingrédient actif
The present invention relates to a cementitious mixture comprising a magnesium-iron solid solution silicate filler or aggregate, a strong base, one or more cementitious materials; and at most 12% water. The present invention further relates to use of the cementitious mixture for making an aqueous slurry, and a method of making a cementitious slurry
C09K 8/467 - Compositions de cimentation, p. ex. pour la cimentation des tubes dans les trous de forageCompositions de bouchage, p. ex. pour tuer des puits contenant des liants inorganiques, p. ex. ciment Portland contenant des additifs pour des utilisations spécifiques
The invention relates to a process for preparing an alkali activated binder mixture comprising mixing: (i) 50 to 100% by weight of ultramafic rock, based on the weight of the binder mixture, (ii) 0 to 60% by weight of aluminosilicate precursor, based on the weight of the binder mixture, (iii) an alkali activator, wherein the ultramafic rock and aluminosilicate precursor are present in an amount of less than or equal to 95% by weight of the binder mixture, wherein the alkali activator dosage (R) is between 3 and 14, where R is given by the mass ratio: R = Mass of Na2O or K2O in the alkali activator x 100 Mass of the binder mixture, and wherein the activator modulus (M) is between 0 and 3, where M is a mass ratio given by: M = SiO2 or SiO2 Na2O K2O. The invention further relates to an alkali activated binder mixture, use of the alkali activated binder mixture, a method of making an alkali activated binder slurry, an alkali activated binder slurry obtainable by the method, use of the alkali activated binder slurry, a process for making a concrete structure from the alkali activated binder slurry, and a concrete structure obtainable from the alkali activated binder slurry.
C04B 28/00 - Compositions pour mortiers, béton ou pierre artificielle, contenant des liants inorganiques ou contenant le produit de réaction d'un liant inorganique et d'un liant organique, p. ex. contenant des ciments de polycarboxylates
C04B 111/00 - Fonction, propriétés ou utilisation des mortiers, du béton ou de la pierre artificielle
5.
ACID ACTIVATED MIXTURE, CEMENT SLURRY AND STRUCTURE
The invention relates to a relates to an acid activated mixture comprising: an acid activated magnesium-iron solid solution silicate filler; cementitious material; and carbon dioxide (CO2); wherein the magnesium-iron solid solution silicate filler has at most 7% free water, and wherein the magnesium-iron solid solution silicate filler is between 4% and 55% by weight of cementitious material. The invention further relates to a method for producing an acid activated cement slurry comprising the steps: making a slurry comprising a non-acid activated or acid activated magnesium-iron solid solution silicate filler, water, and cementitious material; adding carbon dioxide (CO2) to the slurry; and optionally adding an acid to the slurry; wherein the magnesium-iron solid solution silicate filler is between 4% and 55% by weight of cementitious material. The invention also relates to a process for making an acid activated structure, an acid activated cement slurry obtainable by the method, use of the acid-activated cement slurry for making an acid activated structure, aspect, and an acid activated structure obtainable by the process.
C04B 38/10 - Mortiers, béton, pierre artificielle ou articles de céramiques poreuxLeur préparation en utilisant des agents moussants
C09K 8/46 - Compositions de cimentation, p. ex. pour la cimentation des tubes dans les trous de forageCompositions de bouchage, p. ex. pour tuer des puits contenant des liants inorganiques, p. ex. ciment Portland
The invention relates to a pozzolan mixture comprising between 5 and 80% of magnesium-iron solid solution silicates; between 5 and 80% of MgCOs X H2O where X=0-10; and between 2 and 30% of reactive silica; and having a free water content of at most 10% by total weight of mixture. The invention further relates to a method of making a cement slurry with a pozzolan mixture including the steps of: (i) reacting a magnesium-iron solid solution silicate with an acid and adding any extra magnesium-iron solid solution silicate to the products of the reaction to produce a pozzolan mixture comprising between 5 and 80% of magnesium-iron solid solution silicates; between 5 and 80% of MgCOs X H2O, where X=0-10; between 2 and 30% of reactive silica; (ii) adding the products of step (i) to a slurry of cementitious material and water in a ratio of between 1 :1.5 and 10:1 of cementitious material to the pozzolan mixture.
C04B 28/02 - Compositions pour mortiers, béton ou pierre artificielle, contenant des liants inorganiques ou contenant le produit de réaction d'un liant inorganique et d'un liant organique, p. ex. contenant des ciments de polycarboxylates contenant des ciments hydrauliques autres que ceux de sulfate de calcium
C04B 40/00 - Procédés, en général, pour influencer ou modifier les propriétés des compositions pour mortiers, béton ou pierre artificielle, p. ex. leur aptitude à prendre ou à durcir
C04B 103/00 - Fonctions ou propriétés de l'ingrédient actif
A cementitious mixture to make structures with reduction of gas permeability was disclosed. The mixture includes, cementitious materials, and one or more divalent magnesium-iron silicate that in neutral or basic aqueous solutions have the capacity to be a latent hydraulic binder comprising 2% to 99% of divalent magnesium-iron silicate by weight of total hydraulic solid materials. This can be used to produce a cementitious structure for preventing gas transfer between a first region and a second region. A cement slurry was also disclosed.
C04B 28/24 - Compositions pour mortiers, béton ou pierre artificielle, contenant des liants inorganiques ou contenant le produit de réaction d'un liant inorganique et d'un liant organique, p. ex. contenant des ciments de polycarboxylates contenant des silicates d'alkylammonium ou des silicates de métaux alcalinsCompositions pour mortiers, béton ou pierre artificielle, contenant des liants inorganiques ou contenant le produit de réaction d'un liant inorganique et d'un liant organique, p. ex. contenant des ciments de polycarboxylates contenant des sols de silice
C09K 8/46 - Compositions de cimentation, p. ex. pour la cimentation des tubes dans les trous de forageCompositions de bouchage, p. ex. pour tuer des puits contenant des liants inorganiques, p. ex. ciment Portland
8.
USE OF A CEMENTITIOUS MIXTURE COMPRISING DIVALENT MAGNESIUM-IRON SILICATE FOR MAKING CONCRETE STRUCTURES WITH REDUCED PERMEABILITY AND METHOD FOR MAKING SUCH A STRUCTURE
The invention relates to the use of a cementitious mixture that comprises a) cementitious materials; b) one or more divalent magnesium-iron silicate that in neutral or basic aqueous solutions have the capacity to be a latent hydraulic binder comprising 2 - 99% of divalent magnesium-iron silicate by weight of total hydraulic solid materials; to make a cementitious structure for preventing gas transfer between a first region and a second region. and to a method to make a cementitious structure for preventing gas transfer between a first region and a second region comprising the steps of: a) mixing cementitious materials with a cement additive that comprises an admixture of one or more of divalent magnesium-iron silicates with the capacity to act as a latent hydraulic binder to a cement mixture, said cement additive comprises 2 - 99%, of divalent magnesium-iron silicate by weight of total hydraulic solid materials; c) blending the cementitious mixture to a neutral or basic slurry by the addition of water d) forming a structure, between the two regions, from the cement slurry, e) allowing the structure to set.
The invention pertains to performing bonding strength testing between a test material and a container. A sample preparation device to make a test sample was disclosed. This device included a container with an insert on each end. The inserts have a portion that protrudes into the container. When test material is added to the sample preparation device, a groove was formed in test sample. These grooves reduce the amount of boundary effects that are present during testing. A system and method for performing bond strength testing was also disclosed. In this system, a test sample was formed using the sample preparation device. This is placed upon a support and a half-spherical force applier is placed on top of the test sample. A press is used to apply force to the force applier and indirectly to the test sample.
G01N 3/24 - Recherche des propriétés mécaniques des matériaux solides par application d'une contrainte mécanique en appliquant des efforts permanents de cisaillement
A cementitious mixture to make structures with reduction of gas permeability was disclosed. The mixture includes, cementitious materials, and one or more divalent magnesium-iron silicate that in neutral or basic aqueous solutions have the capacity to be a latent hydraulic binder comprising 2% to 99% of divalent magnesium-iron silicate by weight of total hydraulic solid materials. This can be used to produce a cementitious structure for preventing gas transfer between a first region and a second region. A cement slurry was also disclosed.
C04B 28/24 - Compositions pour mortiers, béton ou pierre artificielle, contenant des liants inorganiques ou contenant le produit de réaction d'un liant inorganique et d'un liant organique, p. ex. contenant des ciments de polycarboxylates contenant des silicates d'alkylammonium ou des silicates de métaux alcalinsCompositions pour mortiers, béton ou pierre artificielle, contenant des liants inorganiques ou contenant le produit de réaction d'un liant inorganique et d'un liant organique, p. ex. contenant des ciments de polycarboxylates contenant des sols de silice
C09K 8/46 - Compositions de cimentation, p. ex. pour la cimentation des tubes dans les trous de forageCompositions de bouchage, p. ex. pour tuer des puits contenant des liants inorganiques, p. ex. ciment Portland
11.
Composition of a cement additive material as an additive to cementitious mineral admixtures, and utilized as latent hydraulic binders to improve the outcome of cementitious products
A composition of a cement additive material to improve durability of cementitious structures, was disclosed. The cement additive composition includes an admixture of one or more of divalent magnesium metal silicates with capacity to act as a latent hydraulic binder in said composition activated by a hydration process under aqueous conditions, and in particular the divalent metal silicate is magnesium-dominated silicate, preferably comprising mineral groups of olivines, orthopyroxenes, amphiboles, and serpentines or mixtures thereof. The composition also includes chloride ions or brine.
Composition of a cement additive material as an additive to cementitious mineral admixtures, and utilised as latent hydraulic binders to improve the outcome of cementitious products
A composition of a cement additive material to improve durability of cementitious structures, was disclosed. The cement additive composition includes an admixture of one or more of divalent magnesium metal silicates with capacity to act as a latent hydraulic binder in said composition activated by a hydration process under aqueous conditions, and in particular the divalent metal silicate is magnesium-dominated silicate, preferably comprising mineral groups of olivines, orthopyroxenes, amphiboles, talc and serpentines or mixtures thereof. The composition also includes chloride ions or brine. Applications of the compositions are also disclosed, in particular to utilize a property of hydration as a major trigger for the latent hydraulic reaction of magnesium silicates, particularly for said olivines, when exposed to water and brines, in order to obtain a cementitious material becoming self healing.
C04B 28/24 - Compositions pour mortiers, béton ou pierre artificielle, contenant des liants inorganiques ou contenant le produit de réaction d'un liant inorganique et d'un liant organique, p. ex. contenant des ciments de polycarboxylates contenant des silicates d'alkylammonium ou des silicates de métaux alcalinsCompositions pour mortiers, béton ou pierre artificielle, contenant des liants inorganiques ou contenant le produit de réaction d'un liant inorganique et d'un liant organique, p. ex. contenant des ciments de polycarboxylates contenant des sols de silice
C04B 22/14 - Acides ou leurs sels comportant du soufre dans la partie anionique, p. ex. sulfures
C04B 111/20 - Résistance envers les attaques chimiques, physiques ou biologiques
13.
COMPOSITION OF A CEMENT ADDITIVE MATERIAL AS AN ADDITIVE TO CEMENTITIOUS MINERAL ADMIXTURES, AND UTILISED AS LATENT HYDRAULIC BINDERS TO IMPROVE THE OUTCOME OF CEMENTITIOUS PRODUCTS
. A composition of a cement additive material to improve durability of cementitious structures, is disclosed. The cement additive composition comprises an admixture of one or more of divalent magnesium metal silicates with capacity to act as a latent hydraulic binder in said composition activated by a hydration process under aqueous conditions, and in particular the divalent metal silicate is magnesium-dominated silicate, preferably comprising mineral groups of olivines, orthopyroxenes, amphiboles, talc and serpentines or mixtures thereof. The composition also comprise chloride ions or brine. Applications of the compositions are also disclosed, in particular to utilize a property of hydration as a major trigger for the latent hydraulic reaction of magnesium silicates, particularly for said olivines, when exposed to water and brines, in order to obtain a cementitious material becoming self healing.
C04B 28/02 - Compositions pour mortiers, béton ou pierre artificielle, contenant des liants inorganiques ou contenant le produit de réaction d'un liant inorganique et d'un liant organique, p. ex. contenant des ciments de polycarboxylates contenant des ciments hydrauliques autres que ceux de sulfate de calcium
brevets
