A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
LIQUID RAPID-HARDENING AGENT AND RAPID-HARDENING CEMENT CONCRETE
To provide a liquid rapid-hardening agent capable of preventing a rapid-hardening inhibition of a rapid-hardening agent from occurring due to precipitation of natroalunite, thereby exhibiting excellent workability.SOLUTION: A liquid rapid-hardening agent comprises aluminum, sulfur, sodium, and fluorine, wherein a content of natroalunite in the liquid rapid-hardening agent is 5 mass% or less. Preferably, a content of natroalunite at least after the liquid rapid-hardening agent is stored for 48 hours at 0-40°C right after being produced is 5 mass% or less. More preferably, the natroalunite is derived from a cryolite.SELECTED DRAWING: None
【課題】ナトロアルナイトの析出による急結剤の急結阻害を防ぎ、これによって良好な施工性を発揮し得る液体急結剤の提供。【解決手段】アルミニウム、硫黄、ナトリウム、及びフッ素を含む液体急結剤であって、前記液体急結剤中のナトロアルナイトの含有量が、５質量％以下である液体急結剤である。少なくとも液体急結材作製の直後から、０〜４０℃で４８時間保存した後のナトロアルナイトの含有量が、５質量％以下であることが望ましく、ナトロアルマイトが氷晶石であることがさらに望ましい。【選択図】なし
LIQUID RAPID-HARDENING AGENT AND RAPID-HARDENING CEMENT CONCRETE
To provide a liquid rapid-hardening agent capable of preventing a rapid-hardening inhibition of a rapid-hardening agent from occurring due to precipitation of natroalunite, thereby exhibiting excellent workability.SOLUTION: A liquid rapid-hardening agent comprises aluminum, sulfur, sodium, and fluorine, wherein a content of natroalunite in the liquid rapid-hardening agent is 5 mass% or less. Preferably, a content of natroalunite at least after the liquid rapid-hardening agent is stored for 48 hours at 0-40°C right after being produced is 5 mass% or less. More preferably, the natroalunite is derived from a cryolite.SELECTED DRAWING: None
【課題】ナトロアルナイトの析出による急結剤の急結阻害を防ぎ、これによって良好な施工性を発揮し得る液体急結剤の提供。【解決手段】アルミニウム、硫黄、ナトリウム、及びフッ素を含む液体急結剤であって、前記液体急結剤中のナトロアルナイトの含有量が、５質量％以下である液体急結剤である。少なくとも液体急結材作製の直後から、０〜４０℃で４８時間保存した後のナトロアルナイトの含有量が、５質量％以下であることが望ましく、ナトロアルマイトが氷晶石であることがさらに望ましい。【選択図】なし
LIQUID RAPID-HARDENING AGENT AND RAPID-HARDENING CEMENT CONCRETE
液体急結剤及び急結性セメントコンクリート
MUROKAWA TAKAMITSU (author) / SAKAKIBARA TAKANORI (author) / HATTA KENJI (author)
2021-09-24
Patent
Electronic Resource
Japanese
LIQUID RAPID HARDENING AGENT, RAPID HARDENING CEMENT CONCRETE AND SPRAYING PROCESS USING THE SAME
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