A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
γ-2CaO_SiO2-CONTAINING HYDRAULIC CLINKER, METHOD FOR PRODUCING THE SAME, CEMENT COMPOSITION, CEMENTITIOUS HARDENED BODY, AND METHOD FOR PRODUCING CARBONATED CEMENTITIOUS HARDENED BODY
To provide a cement clinker and the like that have hydraulic hardness, low burning temperature and a high content of γ-2CaO_SiO2, and that are easily powdered and are excellent in easy pulverization properties.SOLUTION: This invention relates to a γ-2CaO_SiO2-containing hydraulic clinker and the like, which have chemical compositions of (A), (B), (C) and (D) as follows, and mineral compositions of (a), (b) and (c) as follows. [Chemical Composition] (A) a mass ratio of CaO/SiO2 is 1.9 to 2.4; (B) a total content of Al2O3 and Fe2O3 is 6 to 14 mass%; (C) a content of P2O5 is less than 0.3 mass%; and (D) a total content of Na2O and K2O is less than 1 mass%. [Mineral Composition] (a) a content of γ-2CaO_SiO2 is 20 mass% or more; (b) a content of 2CaO_Al2O3_SiO2 is 3 to 15 mass%, and/or a content of 4CaO_Al2O3_Fe2O3 is 0 to 5 mass%; and (c) a content of 12CaO_7Al2O3 is 1 to 10 mass%, and/or a content of 3CaO-Al2O3 is 0.5 to 3 mass%.SELECTED DRAWING: None
【課題】本発明は、水硬性を有し、焼成温度が低く、γ－２ＣａＯ・ＳｉＯ２の含有率が高いセメントクリンカであって、容易に粉末化し、易粉砕性に優れたクリンカ等を提供する。【解決手段】本発明は、下記（Ａ）、（Ｂ）、（Ｃ）および（Ｄ）の化学組成、並びに、下記（ａ）、（ｂ）および（ｃ）の鉱物組成を有する、γ－２ＣａＯ・ＳｉＯ２含有水硬性クリンカ等である。［化学組成］（Ａ）ＣａＯ／ＳｉＯ２の質量比が１．９～２．４（Ｂ）Ａｌ２Ｏ３およびＦｅ２Ｏ３の合計の含有率が６～１４質量％（Ｃ）Ｐ２Ｏ５の含有率が０．３質量％未満（Ｄ）Ｎａ２ＯおよびＫ２Ｏの合計の含有率が１質量％未満［鉱物組成］（ａ）γ－２ＣａＯ・ＳｉＯ２の含有率が２０質量％以上（ｂ）２ＣａＯ・Ａｌ２Ｏ３・ＳｉＯ２の含有率が３～１５質量％、および／または４ＣａＯ・Ａｌ２Ｏ３・Ｆｅ２Ｏ３の含有率が０～５質量％（ｃ）１２ＣａＯ・７Ａｌ２Ｏ３の含有率が１～１０質量％、および／または３ＣａＯ・Ａｌ２Ｏ３の含有率が０．５～３質量％【選択図】なし
γ-2CaO_SiO2-CONTAINING HYDRAULIC CLINKER, METHOD FOR PRODUCING THE SAME, CEMENT COMPOSITION, CEMENTITIOUS HARDENED BODY, AND METHOD FOR PRODUCING CARBONATED CEMENTITIOUS HARDENED BODY
To provide a cement clinker and the like that have hydraulic hardness, low burning temperature and a high content of γ-2CaO_SiO2, and that are easily powdered and are excellent in easy pulverization properties.SOLUTION: This invention relates to a γ-2CaO_SiO2-containing hydraulic clinker and the like, which have chemical compositions of (A), (B), (C) and (D) as follows, and mineral compositions of (a), (b) and (c) as follows. [Chemical Composition] (A) a mass ratio of CaO/SiO2 is 1.9 to 2.4; (B) a total content of Al2O3 and Fe2O3 is 6 to 14 mass%; (C) a content of P2O5 is less than 0.3 mass%; and (D) a total content of Na2O and K2O is less than 1 mass%. [Mineral Composition] (a) a content of γ-2CaO_SiO2 is 20 mass% or more; (b) a content of 2CaO_Al2O3_SiO2 is 3 to 15 mass%, and/or a content of 4CaO_Al2O3_Fe2O3 is 0 to 5 mass%; and (c) a content of 12CaO_7Al2O3 is 1 to 10 mass%, and/or a content of 3CaO-Al2O3 is 0.5 to 3 mass%.SELECTED DRAWING: None
【課題】本発明は、水硬性を有し、焼成温度が低く、γ－２ＣａＯ・ＳｉＯ２の含有率が高いセメントクリンカであって、容易に粉末化し、易粉砕性に優れたクリンカ等を提供する。【解決手段】本発明は、下記（Ａ）、（Ｂ）、（Ｃ）および（Ｄ）の化学組成、並びに、下記（ａ）、（ｂ）および（ｃ）の鉱物組成を有する、γ－２ＣａＯ・ＳｉＯ２含有水硬性クリンカ等である。［化学組成］（Ａ）ＣａＯ／ＳｉＯ２の質量比が１．９～２．４（Ｂ）Ａｌ２Ｏ３およびＦｅ２Ｏ３の合計の含有率が６～１４質量％（Ｃ）Ｐ２Ｏ５の含有率が０．３質量％未満（Ｄ）Ｎａ２ＯおよびＫ２Ｏの合計の含有率が１質量％未満［鉱物組成］（ａ）γ－２ＣａＯ・ＳｉＯ２の含有率が２０質量％以上（ｂ）２ＣａＯ・Ａｌ２Ｏ３・ＳｉＯ２の含有率が３～１５質量％、および／または４ＣａＯ・Ａｌ２Ｏ３・Ｆｅ２Ｏ３の含有率が０～５質量％（ｃ）１２ＣａＯ・７Ａｌ２Ｏ３の含有率が１～１０質量％、および／または３ＣａＯ・Ａｌ２Ｏ３の含有率が０．５～３質量％【選択図】なし
γ-2CaO_SiO2-CONTAINING HYDRAULIC CLINKER, METHOD FOR PRODUCING THE SAME, CEMENT COMPOSITION, CEMENTITIOUS HARDENED BODY, AND METHOD FOR PRODUCING CARBONATED CEMENTITIOUS HARDENED BODY
γ－２ＣａＯ・ＳｉＯ２含有水硬性クリンカ、その製造方法、セメント組成物、セメント質硬化体、および炭酸化セメント質硬化体の製造方法
HONMA KENICHI (author) / HOSOKAWA YOSHIFUMI (author) / HASHIMOTO MASAYUKI (author)
2023-04-11
Patent
Electronic Resource
Japanese
IPC:
C04B
Kalk
,
LIME
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