A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
To provide a method of producing an inorganic board, capable of producing an inorganic board excellent in fire resistance and dimension stability.SOLUTION: There are provided a method of producing an inorganic board by curing a hydraulic inorganic material containing not less than 5.0 mass% and less than 15.0 mass% of gypsum by autoclave-curing, a method of producing an inorganic board by autoclave-curing of the hydraulic inorganic material comprising calcium and silica in a molar ratio of higher than 0.72 and lower than 0.94 and comprising sulfur trioxide blended therein in an amount of more than 0.02 mol% and less than 0.13 mol%, and a method of producing an inorganic board by autoclave-curing of the hydraulic inorganic material preferably adding a coagulant thereinto to improve its filterability of water at a time of sheet making preferably in an amount of 0.05 to 5 mass% relative to the total amount of the hydraulic inorganic material, employing at least one of aluminum sulfate, alum, polysodium acrylate poly-sodium acrylate, a polyacrylate, a polyamine resin or the like, or a blend thereof as the coagulant.SELECTED DRAWING: None
【課題】耐火性と寸法安定性に優れる無機質板を得ることができる無機質板の製造方法を提供する。【解決手段】石膏が５．０〜１５．０質量％未満で含まれている水硬性無機質材料をオートクレーブ養生により硬化する、無機質板の製造方法。また、前記水硬性無機質材料は、カルシウムとシリカのモル比が０．７２〜０．９４未満であり、且つ、三酸化硫黄の配合量が０．０２〜大きく０．１３ｍｏｌ％未満である無機質板を製造する方法。好ましくは、水硬質材料には、抄造時の濾水性を改良するために凝集剤を添加すると良く、前記凝集剤として硫酸アルミニウム、ミョウバン、ポリアクリル酸ソーダ、ポリアクリル酸エステル、ポリアミン樹脂等から１種以上を混合して全量に対して０．０５〜５質量％使用することが望ましい、無機質板の製造方法。【選択図】なし
To provide a method of producing an inorganic board, capable of producing an inorganic board excellent in fire resistance and dimension stability.SOLUTION: There are provided a method of producing an inorganic board by curing a hydraulic inorganic material containing not less than 5.0 mass% and less than 15.0 mass% of gypsum by autoclave-curing, a method of producing an inorganic board by autoclave-curing of the hydraulic inorganic material comprising calcium and silica in a molar ratio of higher than 0.72 and lower than 0.94 and comprising sulfur trioxide blended therein in an amount of more than 0.02 mol% and less than 0.13 mol%, and a method of producing an inorganic board by autoclave-curing of the hydraulic inorganic material preferably adding a coagulant thereinto to improve its filterability of water at a time of sheet making preferably in an amount of 0.05 to 5 mass% relative to the total amount of the hydraulic inorganic material, employing at least one of aluminum sulfate, alum, polysodium acrylate poly-sodium acrylate, a polyacrylate, a polyamine resin or the like, or a blend thereof as the coagulant.SELECTED DRAWING: None
【課題】耐火性と寸法安定性に優れる無機質板を得ることができる無機質板の製造方法を提供する。【解決手段】石膏が５．０〜１５．０質量％未満で含まれている水硬性無機質材料をオートクレーブ養生により硬化する、無機質板の製造方法。また、前記水硬性無機質材料は、カルシウムとシリカのモル比が０．７２〜０．９４未満であり、且つ、三酸化硫黄の配合量が０．０２〜大きく０．１３ｍｏｌ％未満である無機質板を製造する方法。好ましくは、水硬質材料には、抄造時の濾水性を改良するために凝集剤を添加すると良く、前記凝集剤として硫酸アルミニウム、ミョウバン、ポリアクリル酸ソーダ、ポリアクリル酸エステル、ポリアミン樹脂等から１種以上を混合して全量に対して０．０５〜５質量％使用することが望ましい、無機質板の製造方法。【選択図】なし
METHOD OF PRODUCING INORGANIC BOARD
無機質板の製造方法
KAWASAKI YUSUKE (author)
2019-01-17
Patent
Electronic Resource
Japanese
METHOD FOR PRODUCING INORGANIC BOARD, AND INORGANIC BOARD
| European Patent Office | 2017
| European Patent Office | 2020