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A platform for research: civil engineering, architecture and urbanism
ACCELERATING AGENT
To provide an accelerating agent not containing alkali aluminate capable of, in a wet spray construction of a refractory material, suppressing deterioration adhesiveness and suppressing also occurrence of nozzle blockage and dust emission.SOLUTION: A powdery accelerating agent used in a wet spray construction of a refractory material includes an additive and a refractory material, in which the additive contains at least one kind of curing accelerator selected from calcium hydroxide, alumina cement and silicate and at least one kind of specific powder material selected from a nitrate, a carbonate, citric acid, a citrate, boric acid and a borate, a ratio of a content of the calcium hydroxide and a content of the curing accelerator (a content of the calcium hydroxide/a content of the curing accelerator) is 0.7 or larger and 4 or smaller, and a ratio of a total amount of the calcium hydroxide and the curing accelerator and an amount of the specific powder material (a total amount of the calcium hydroxide and the curing accelerator/an amount of the specific powder material) is 1 or larger and 10 or smaller.SELECTED DRAWING: None
【課題】耐火物の湿式吹き付け施工において、付着性の低下を抑制できるとともにノズル閉塞及び発塵の発生も抑制できる、アルミン酸アルカリ塩を含まない急結剤を提供する。【解決手段】耐火物の湿式吹き付け施工に用いられる粉末状の急結剤であって、添加剤と、耐火材料とを含み、前記添加剤は、水酸化カルシウムと、アルミナセメント及び珪酸塩から選択される少なくとも一種の硬化促進剤と、硫酸塩、炭酸塩、クエン酸、クエン酸塩、ホウ酸及びホウ酸塩から選択される少なくとも一種の特定粉末材料と、を含み、前記水酸化カルシウムの含有量と前記硬化促進剤の含有量との比（前記水酸化カルシウムの含有量／前記硬化促進剤の含有量）が０．７以上４以下であり、前記水酸化カルシウム及び前記硬化促進剤の合量と前記特定粉末材料の含有量との比（前記水酸化カルシウム及び前記硬化促進剤の合量／前記特定粉末材料の含有量）が１以上１０以下である。【選択図】なし
ACCELERATING AGENT
To provide an accelerating agent not containing alkali aluminate capable of, in a wet spray construction of a refractory material, suppressing deterioration adhesiveness and suppressing also occurrence of nozzle blockage and dust emission.SOLUTION: A powdery accelerating agent used in a wet spray construction of a refractory material includes an additive and a refractory material, in which the additive contains at least one kind of curing accelerator selected from calcium hydroxide, alumina cement and silicate and at least one kind of specific powder material selected from a nitrate, a carbonate, citric acid, a citrate, boric acid and a borate, a ratio of a content of the calcium hydroxide and a content of the curing accelerator (a content of the calcium hydroxide/a content of the curing accelerator) is 0.7 or larger and 4 or smaller, and a ratio of a total amount of the calcium hydroxide and the curing accelerator and an amount of the specific powder material (a total amount of the calcium hydroxide and the curing accelerator/an amount of the specific powder material) is 1 or larger and 10 or smaller.SELECTED DRAWING: None
【課題】耐火物の湿式吹き付け施工において、付着性の低下を抑制できるとともにノズル閉塞及び発塵の発生も抑制できる、アルミン酸アルカリ塩を含まない急結剤を提供する。【解決手段】耐火物の湿式吹き付け施工に用いられる粉末状の急結剤であって、添加剤と、耐火材料とを含み、前記添加剤は、水酸化カルシウムと、アルミナセメント及び珪酸塩から選択される少なくとも一種の硬化促進剤と、硫酸塩、炭酸塩、クエン酸、クエン酸塩、ホウ酸及びホウ酸塩から選択される少なくとも一種の特定粉末材料と、を含み、前記水酸化カルシウムの含有量と前記硬化促進剤の含有量との比（前記水酸化カルシウムの含有量／前記硬化促進剤の含有量）が０．７以上４以下であり、前記水酸化カルシウム及び前記硬化促進剤の合量と前記特定粉末材料の含有量との比（前記水酸化カルシウム及び前記硬化促進剤の合量／前記特定粉末材料の含有量）が１以上１０以下である。【選択図】なし
ACCELERATING AGENT
急結剤
SHIRAMA TOICHI (author) / OKADA YUKI (author)
2020-06-04
Patent
Electronic Resource
Japanese
IPC:
C04B
Kalk
,
LIME
/
F27D
Einzelheiten oder Zubehör für Industrieöfen, Schachtöfen, Brennöfen oder Retorten, soweit sie nicht auf eine Ofenart eingeschränkt sind
,
DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
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