A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
CEMENT-BASED SOLIDIFICATION MATERIAL AND MANUFACTURING METHOD THEREFOR
To solve the problem in which countermeasures to prevent reduced flowability of slurry under high temperature environment are insufficient in the conventional cement-based solidification material, and to thereby provide a cement-based solidification material with less reduction of flowability even in the high temperature environment.SOLUTION: The present invention relates to a cement-based solidification material which, in a solidification material including portland cement and gypsum, contains zinc and lead and has a total content of zinc and lead of 500 mg/kg or more and 1000 mg/kg or less, and preferably contains particles sieved with a 20 μm sieve of 50 mass% or more and 100 mass% or less and has a zinc content of the particles of 600 mg/kg or more and a lead content of 100 mg/kg or more, and a manufacturing method therefor.SELECTED DRAWING: None
【課題】従来のセメント系固化材は、高温環境下におけるスラリーの流動性低下の防止対策が不十分であると云う課題を解決し、高温環境下でも流動性の低下が少ないセメント系固化材を提供する。【解決手段】ポルトランドセメントと石膏を含む固化材において、亜鉛および鉛を含有し、亜鉛および鉛の合計含有量が５００mg/kg以上〜１０００mg/kg以下であることを特徴とし、好ましくは、２０μｍ篩下の粒子を５０質量％以上〜１００質量％以下含有し、該粒子の亜鉛含有量が６００mg/kg以上であって鉛含有量が１００mg/kg以上であるセメント系固化材、およびその製造方法。【選択図】なし
CEMENT-BASED SOLIDIFICATION MATERIAL AND MANUFACTURING METHOD THEREFOR
To solve the problem in which countermeasures to prevent reduced flowability of slurry under high temperature environment are insufficient in the conventional cement-based solidification material, and to thereby provide a cement-based solidification material with less reduction of flowability even in the high temperature environment.SOLUTION: The present invention relates to a cement-based solidification material which, in a solidification material including portland cement and gypsum, contains zinc and lead and has a total content of zinc and lead of 500 mg/kg or more and 1000 mg/kg or less, and preferably contains particles sieved with a 20 μm sieve of 50 mass% or more and 100 mass% or less and has a zinc content of the particles of 600 mg/kg or more and a lead content of 100 mg/kg or more, and a manufacturing method therefor.SELECTED DRAWING: None
【課題】従来のセメント系固化材は、高温環境下におけるスラリーの流動性低下の防止対策が不十分であると云う課題を解決し、高温環境下でも流動性の低下が少ないセメント系固化材を提供する。【解決手段】ポルトランドセメントと石膏を含む固化材において、亜鉛および鉛を含有し、亜鉛および鉛の合計含有量が５００mg/kg以上〜１０００mg/kg以下であることを特徴とし、好ましくは、２０μｍ篩下の粒子を５０質量％以上〜１００質量％以下含有し、該粒子の亜鉛含有量が６００mg/kg以上であって鉛含有量が１００mg/kg以上であるセメント系固化材、およびその製造方法。【選択図】なし
CEMENT-BASED SOLIDIFICATION MATERIAL AND MANUFACTURING METHOD THEREFOR
セメント系固化材およびその製造方法
DOI KOTA (author) / KONO TAKESHI (author)
2020-06-04
Patent
Electronic Resource
Japanese
CEMENT CLINKER, MANUFACTURING METHOD THEREFOR AND SOLIDIFICATION MATERIAL
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