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JP2010208870A5 - Gypsum composition, gypsum-based building material, and gypsum-based solidifying material capable of suppressing hydrogen sulfide generation - Google Patents

Gypsum composition, gypsum-based building material, and gypsum-based solidifying material capable of suppressing hydrogen sulfide generation Download PDF

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JP2010208870A5
JP2010208870A5 JP2009053660A JP2009053660A JP2010208870A5 JP 2010208870 A5 JP2010208870 A5 JP 2010208870A5 JP 2009053660 A JP2009053660 A JP 2009053660A JP 2009053660 A JP2009053660 A JP 2009053660A JP 2010208870 A5 JP2010208870 A5 JP 2010208870A5
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gypsum
aluminum
composition according
hydrogen sulfide
gypsum composition
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JP4802255B2 (en
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本発明は、硫化水素発生を抑制できる石膏組成物、石膏系建材及び石膏系固化材に関し、さらに詳しくは、石膏の硫黄成分によって硫化水素が発生し難いように構成されている硫化水素発生を抑制できる石膏組成物、これを用いた石膏系建材及び石膏系固化材に関する。 The present invention relates to a gypsum composition, a gypsum-based building material, and a gypsum-based solidifying material capable of suppressing hydrogen sulfide generation, and more specifically, suppressing hydrogen sulfide generation that is configured so that hydrogen sulfide is not easily generated by the sulfur component of gypsum. The present invention relates to a gypsum composition , a gypsum-based building material and a gypsum-based solidifying material using the gypsum composition.

さらに、本発明の別の実施形態としては、上記いずれかの石膏組成物を原料としてなることを特徴とする石膏系建材、或いは、上記いずれかの石膏組成物を有することを特徴とする建設残土や汚泥や泥土の土壌処理用の石膏系固化材が挙げられる。
Furthermore, as another embodiment of the present invention, a gypsum-based building material characterized by using any one of the gypsum compositions described above as a raw material , or a construction residual soil characterized by comprising any gypsum composition described above. And gypsum-based solidifying materials for soil treatment of sludge and mud .

Claims (6)

（Ａ）焼石膏１００質量部に対して、（Ｂ）酸化アルミニウム、塩化アルミニウム、水酸化アルミニウム、硫酸アルミニウム及びそれらの誘導体からなる群から選ばれる少なくとも１種のアルミニウム化合物が０．８〜２０質量部の範囲で添加されてなることを特徴とする硫化水素発生を抑制できる石膏組成物。   (A) With respect to 100 parts by mass of calcined gypsum, at least one aluminum compound selected from the group consisting of (B) aluminum oxide, aluminum chloride, aluminum hydroxide, aluminum sulfate and derivatives thereof is 0.8 to 20 masses. A gypsum composition capable of suppressing hydrogen sulfide generation, characterized by being added in a range of parts. さらに、（Ｃ）カルシウム又はマグネシウム成分を含む中和剤が添加混合されてなる請求項１に記載の石膏組成物。   The gypsum composition according to claim 1, further comprising (C) a neutralizing agent containing a calcium or magnesium component. 前記（Ｂ）のアルミニウム化合物がアルミニウム硫酸塩水和物［Ａl2(ＳＯ4)3・ｎＨ2Ｏ］であり、かつ、（Ｃ）中和剤が水酸化カルシウム［Ｃａ(ＯＨ)2］であり、該（Ｃ）の中和剤が、上記（Ｂ）のアルミニウム化合物の０．１〜０．７５倍の質量の範囲で添加混合されている請求項１又は２に記載の石膏組成物。 The aluminum compound (B) is aluminum sulfate hydrate [Al 2 (SO 4 ) 3 .nH 2 O], and (C) the neutralizing agent is calcium hydroxide [Ca (OH) 2 ]. The gypsum composition according to claim 1 or 2, wherein the neutralizing agent (C) is added and mixed in a mass range of 0.1 to 0.75 times the mass of the aluminum compound (B). 前記焼石膏の一部又は全部が、廃石膏を焼成したものである請求項１〜３のいずれか１項に記載の石膏組成物。   The gypsum composition according to any one of claims 1 to 3, wherein a part or all of the calcined gypsum is obtained by calcining waste gypsum. 請求項１〜４のいずれか１項に記載の石膏組成物を原料としてなることを特徴とする石膏系建材。   A gypsum-based building material comprising the gypsum composition according to any one of claims 1 to 4 as a raw material. 請求項１〜４のいずれか１項に記載の石膏組成物を含有することを特徴とする建設残土や汚泥や泥土の土壌処理用の石膏系固化材。A gypsum-based solidifying material for soil treatment of construction residual soil, sludge, or mud soil, comprising the gypsum composition according to any one of claims 1 to 4.
JP2009053660A 2009-03-06 2009-03-06 Gypsum-based solidifying material mainly composed of a gypsum composition capable of suppressing hydrogen sulfide Active JP4802255B2 (en)

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JP2011027332A Division JP5632768B2 (en) 2011-02-10 2011-02-10 Method for suppressing hydrogen sulfide generation

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JP2014037330A (en) * 2012-08-15 2014-02-27 Yoshino Gypsum Co Ltd Gypsum compositions, gypsum-based solidification materials and gypsum-based construction materials
JP6053004B2 (en) * 2013-03-14 2016-12-27 恵和興業株式会社 Method for producing reusable granulate from gypsum board waste
JP5686426B1 (en) 2013-05-31 2015-03-18 吉野石膏株式会社 Rubble treatment composition and rubble treatment method

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