A general term for powdered or clay-like refractories used when complex shapes are required. They were developed as an alternative to fireproof mortar. There are castable refractories (alumina cement mixed with chamotte or fireproof lightweight aggregate), plastic refractories (fireproof aggregate mixed with water and a binder such as fireclay), ramming materials (similar to plastic refractories but with less plasticity), and sprayed refractories. Source : Heibonsha Encyclopedia About MyPedia Information |
複雑な形状を必要とするときなどに用いる粉末状または練り土状の耐火物の総称。耐火モルタルに代わるものとして発達した。キャスタブル耐火物(シャモットあるいは耐火性軽量骨材にアルミナセメントを混合したもの),プラスチック耐火物(耐火骨材に耐火粘土などの粘結材を加えて水と練ったもの),耐火ラミング材(プラスチック耐火物類似のものだが,可塑性が小さい),吹付耐火物などがある。
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