Abstract:
La presente invención se refiere a un método para producir un polvo hidráulico, el cual comprende una etapa en donde un compuesto hidráulico se pulveriza en la presencia de un asistente de pulverización y una sal de ácido de un compuesto específico tal como urea. Este método para producir un polvo hidráulico se caracteriza porque la abundancia de la sal de ácido de un compuesto es 0.0001-0.05 partes en peso con relación a 100 partes en peso del compuesto hidráulico y la relación de peso de la sal de ácido de un compuesto al asistente de pulverización (sal de ácido del compuesto/asistente de pulverización) es de 40/60 a 1/99.
Abstract:
Provided are a rheology modifier and a method for modifying water rheology for imparting thixotropy and viscosity to water, and a slurry composition having high viscosity and excellent resistance to separation in water and a method for producing such a slurry composition. A rheology modifier containing: (A) a sulfate or a salt thereof having a hydrocarbon group with 12 or more and 22 or less carbon atoms and an average number of moles of added alkylene oxide of 0 or more and 25 or less; and (B) a fatty acid alkanolamide having a fatty acid moiety with 10 or more and 22 or less carbon atoms.
Abstract:
La presente invención se refiere a: una composición mejoradora de resistencia para un polvo hidráulico, que contiene un producto de reacción obtenido por la reacción de (al) por lo menos un compuesto seleccionado de alcoholes polihídricos que tienen una valencia de 2 o más y 5 o menos, y (a2) un compuesto de aldehído o compuesto de cetona; y un método para mejorar la resistencia de un producto curado de una composición hidráulica, que incluye la adición de la composición mejoradora de resistencia a una composición hidráulica.
Abstract:
The present invention relates to: a strength improver composition for a hydraulic powder, which contains a reaction product obtained by the reaction of (a1) at least one compound selected from polyhydric alcohols having a valency of 2 or more and 5 or less and (a2) an aldehyde compound or ketone compound; and a method for improving the strength of a cured product of a hydraulic composition, which includes adding the strength improver composition to a hydraulic composition.
Abstract:
The present invention provides the production of the hydraulic powder containing C 3 A in an amount of 0.5 to 9.5% by weight through a step of grinding a hydraulic compound in the presence of the alkanolamine having a freezing point of not higher than 0°C.
Abstract:
The present invention is a hydraulic composition, which includes an ±-hydroxy sulfonic acid or a salt thereof, a hydraulic powder and water, wherein the ratio of slag in the hydraulic powder is 60% by mass or more.
Abstract:
The present invention discloses a dispersant for a hydraulic composition, containing an alkyldiethanolamine having an alkyl group having 1 to 3 carbon atoms and a naphthalenesulfonic acid-formaldehyde condensate, wherein a weight ratio of the alkyldiethanolamine having an alkyl group having 1 to 3 carbon atoms to the naphthalenesulfonic acid-formaldehyde condensate (alkyldiethanolamine/ naphthalenesulfonic acid-formaldehyde condensate) is 0.01 to 2.0; an aqueous solution containing the same, moreover a hydraulic composition, containing an alkyldiethanolamine having an alkyl group having 1 to 3 carbon atoms, a naphthalenesulfonic acid-formaldehyde condensate, a hydraulic powder, an aggregate and water, wherein the hydraulic powder contains SO 3 in an amount of 0.5 to 6.0% by weight, and a weight ratio of the alkyldiethanolamine having an alkyl group having 1 to 3 carbon atoms to the naphthalenesulfonic acid-formaldehyde condensate (alkyldiethanolamine/ naphthalenesulfonic acid-formaldehyde condensate) is 0.01 to 2.0.
Abstract:
The present invention provides a dispersant for a hydraulic composition containing N-methyldiethanolamine and a specific (meth) acrylic acid copolymer as a polycarboxylic acid copolymer dispersing agent to increase the fluidity of a hydraulic composition.
Abstract:
La presente invención se refiere a un método para producir un polvo hidráulico, que contiene un paso de pulverizar de un compuesto hidráulico en la presencia de trietanolamina y ácido hidroximetanosulfónico o una sal del mismo.