GYPSUM MEMBER, GYPSUM BOARD, AND METHOD FOR PRODUCING GYPSUM MEMBER

PROBLEM TO BE SOLVED: To provide a gypsum member or the like in which the deformation such as deflection, sagging down or the like, is suppressed even when used under a high-humidity environment.SOLUTION: The gypsum member according to the present invention is a gypsum member made by hardening a slu...

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Bibliographic Details
Main Authors HIRATA TOMOYA, YAMANAKA SEIJI
Format Patent
LanguageEnglish
Japanese
Published 07.07.2016
Subjects
ARTIFICIAL STONE
CEMENTS
CERAMICS
CHEMISTRY
COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS
CONCRETE
LIME, MAGNESIA
METALLURGY
REFRACTORIES
SLAG
TREATMENT OF NATURAL STONE
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Summary:PROBLEM TO BE SOLVED: To provide a gypsum member or the like in which the deformation such as deflection, sagging down or the like, is suppressed even when used under a high-humidity environment.SOLUTION: The gypsum member according to the present invention is a gypsum member made by hardening a slurry containing calcined gypsum and water, and in which the slurry contains at least one tartrate selected from the group consisting of potassium tartrate, potassium hydrogen tartrate, and potassium sodium tartrate tetrahydrate, and in which the contained amount of the tartrate is 0.02 to 1.0 pts.mass per 100 pts.mass of the calcined gypsum.SELECTED DRAWING: Figure 1 【課題】多湿環境下で使用されても、撓み、垂れ下がり等の変形が抑制される石膏部材等の提供。【解決手段】本発明の石膏部材は、焼石膏、及び水を含有するスラリーを硬化させたものからなる石膏部材であって、前記スラリーは、酒石酸カリウム、酒石酸水素カリウム、及び酒石酸ナトリウムカリウム四水和物からなる群より選択される少なくとも１種の酒石酸塩を含有し、かつ前記酒石酸塩の含有量が、前記焼石膏１００質量部当たり、０．０２〜１．０質量部であることを特徴とする。【選択図】図１
Bibliography:Application Number: JP20140262905