A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
PORTLAND CEMENT POWDER
PROBLEM TO BE SOLVED: To provide a Portland cement powder having high whiteness.SOLUTION: There is provided a Portland cement powder having a Blaine specific surface area of 4000 to 10000 cm/g and a whiteness of 92 or more which contains (A) 62.5 to 73.0 mass% of CaO, 23.5 to 31.0 mass% of SiO, 1.5 to 3.0 mass% of AlOand 0.5 to 3.0 mass% of SO, wherein the content of MgO is 1.0 mass% or less, the content of FeOis 0.2 mass% or less, the content of TiOis 0.2 mass% or less, the content of oxides of groups V to VII elements is 0.1 mass% or less and the content of oxides of groups IX to XII elements is 0.1 mass% or less.SELECTED DRAWING: None
【課題】白色度の高いポルトランドセメント粉末の提供。【解決手段】（Ａ）ＣａＯ ６２．５〜７３．０質量％、ＳｉＯ2２３．５〜３１．０質量％、Ａｌ2Ｏ3１．５〜３．０質量％及びＳＯ3０．５〜３．０質量％を含有し、ＭｇＯが１．０質量％以下、Ｆｅ2Ｏ3が０．２質量％以下、ＴｉＯ2が０．２質量％以下、５族〜７族元素の酸化物が０．１質量％以下、９族〜１２族元素の酸化物が０．１質量％以下、ブレーン比表面積が４０００〜１００００ｃｍ２／ｇ、白色度が９２以上であるポルトランドセメント粉末。【選択図】なし
PORTLAND CEMENT POWDER
PROBLEM TO BE SOLVED: To provide a Portland cement powder having high whiteness.SOLUTION: There is provided a Portland cement powder having a Blaine specific surface area of 4000 to 10000 cm/g and a whiteness of 92 or more which contains (A) 62.5 to 73.0 mass% of CaO, 23.5 to 31.0 mass% of SiO, 1.5 to 3.0 mass% of AlOand 0.5 to 3.0 mass% of SO, wherein the content of MgO is 1.0 mass% or less, the content of FeOis 0.2 mass% or less, the content of TiOis 0.2 mass% or less, the content of oxides of groups V to VII elements is 0.1 mass% or less and the content of oxides of groups IX to XII elements is 0.1 mass% or less.SELECTED DRAWING: None
【課題】白色度の高いポルトランドセメント粉末の提供。【解決手段】（Ａ）ＣａＯ ６２．５〜７３．０質量％、ＳｉＯ2２３．５〜３１．０質量％、Ａｌ2Ｏ3１．５〜３．０質量％及びＳＯ3０．５〜３．０質量％を含有し、ＭｇＯが１．０質量％以下、Ｆｅ2Ｏ3が０．２質量％以下、ＴｉＯ2が０．２質量％以下、５族〜７族元素の酸化物が０．１質量％以下、９族〜１２族元素の酸化物が０．１質量％以下、ブレーン比表面積が４０００〜１００００ｃｍ２／ｇ、白色度が９２以上であるポルトランドセメント粉末。【選択図】なし
PORTLAND CEMENT POWDER
ポルトランドセメント粉末
ICHINOTSUBO YUKITERU (author) / WAKABAYASHI KYOKO (author) / MASUDA KENTA (author)
2017-12-07
Patent
Electronic Resource
Japanese
Acrylic powder modified portland cement
| Online Contents | 1995
Acrylic Powder Modified Portland Cement
| British Library Online Contents | 1995
| TIBKAT | 2011
| Engineering Index Backfile | 1927
Engineering Index Backfile | 1900