CEMENT CLINKER

To provide cement clinker that can be produced at a lower calcination temperature, can use a higher amount of waste, and can suitably develop strength at an early stage and for a medium and long period of time, relative to a conventional one.SOLUTION: The cement clinker comprises C3A and C4AF in a t...

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Hauptverfasser:	SABAYASHI TAKASHI, OTA MASAMI
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	ARTIFICIAL STONE CEMENTS CERAMICS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE LIME, MAGNESIA METALLURGY REFRACTORIES SLAG TREATMENT OF NATURAL STONE
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Beschreibung
Zusammenfassung:	To provide cement clinker that can be produced at a lower calcination temperature, can use a higher amount of waste, and can suitably develop strength at an early stage and for a medium and long period of time, relative to a conventional one.SOLUTION: The cement clinker comprises C3A and C4AF in a total amount of not less than 22% and C3S in an amount of not less than 60%, each calculated by Bogue equation, with its iron modulus (I.M.) being not more than 1.3, and can suitably develop strength when the content of MnO in the cement clinker is adjusted in a range of 0.1 to 0.7 wt.%.SELECTED DRAWING: None 【課題】従来のセメントクリンカーに比べ、製造する際の焼成温度を低減することが可能であり、廃棄物使用量を増やすことが可能であり、かつ、初期から中長期に渡って良好な強度発現性を示すことができるセメントとできるクリンカーを提供する。【解決手段】ボーグ式により算出されるＣ３ＡおよびＣ４ＡＦの合計量が２２％以上、Ｃ３Ｓ量が６０％以上、鉄率（Ｉ．Ｍ．）が１．３以下のセメントクリンカーであり、該セメントクリンカーのＭｎＯ含有量を０．１～０．７ｗｔ％に調整することで、良好な強度発現性を示すことができる。【選択図】なし