CEMENT COMPOSITION AND METHOD FOR PRODUCING CEMENT COMPOSITION

To provide a cement composition excellent in compressive strength and capable of suppressing self-shrinkage even when the content of a small amount mixed component increases, and to provide a method for producing the cement composition.SOLUTION: A cement composition includes Portland cement, fly ash...

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1. Verfasser:	NAKADA HIRONOBU
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 a cement composition excellent in compressive strength and capable of suppressing self-shrinkage even when the content of a small amount mixed component increases, and to provide a method for producing the cement composition.SOLUTION: A cement composition includes Portland cement, fly ash, limestone and precipitated silica. The sum of the content of the fly ash, the content of the limestone and the content of the precipitated silica is more than 5 mass% and 10 mass% or less.SELECTED DRAWING: None 【課題】少量混合成分の含有量が増えても、圧縮強さに優れるとともに、自己収縮を抑制し得るセメント組成物及び該セメント組成物の製造方法を提供する。【解決手段】ポルトランドセメント、フライアッシュ、石灰石及び沈降性シリカを含み、前記フライアッシュの含有量、前記石灰石の含有量及び前記沈降性シリカの含有量の合計が、５質量％超１０質量％以下である、セメント組成物。【選択図】なし