Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
CEMENT ADMIXTURE FOR SALT DAMAGE COUNTERMEASURE AND CONCRETE USING THE SAME
PROBLEM TO BE SOLVED: To provide an excellent cement admixture for salt damage countermeasure by combining specific compounds, and a concrete using the same.SOLUTION: According to a first embodiment, a cement admixture for salt damage countermeasure is provided that contains free lime and a calcium ferroaluminate compound. According to a second embodiment, a cement admixture for salt damage countermeasure is provided that is identical to the cement admixture for salt damage countermeasure in the first embodiment except that the cement admixture contains free lime of 10 to 60 pts.mass and calcium ferroaluminate compound of 40 to 90 pts.mass in 100 pts.mass of total of the free lime and the calcium ferroaluminate compound. According to a third embodiment. a cement admixture for salt damage countermeasure is provided that is identical to the cement admixture in the first or the second embodiment except that the free lime and the calcium ferroaluminate have Blaine specific surface area of 2000 to 7000 cm/g. A production method of the cement admixture for salt damage countermeasure is provide in which a heat treated article containing the free lime of 80 mass% or more and the calcium ferroaluminate compound are concurrently pulverized. Concrete is provided that is produced by blending the cement, the cement admixture for salt damage countermeasure.SELECTED DRAWING: None
【課題】特定の化合物を組み合わせることにより、優れた塩害対策用のセメント混和材及びそれを用いたコンクリートを提供する。【解決手段】遊離石灰とカルシウムフェロアルミネート化合物を含有してなる塩害対策用セメント混和材、遊離石灰とカルシウムフェロアルミネート化合物の合計１００質量部中、遊離石灰１０〜６０質量部、カルシウムフェロアルミネート化合物４０〜９０質量部である前記塩害対策用セメント混和材、遊離石灰とカルシウムフェロアルミネート化合物が、ブレーン比表面積２０００〜７０００ｃｍ２/ｇである前記塩害対策用セメント混和材、遊離石灰を８０質量％以上含有する熱処理物とカルシウムフェロアルミネート化合物を同時粉砕する前記塩害対策用セメント混和材の製造方法、セメントと、前記塩害対策用セメント混和材と、高炉スラグ微粉末、フライアッシュ、又はシリカフュームとを配合してなるコンクリート、である。【選択図】なし
CEMENT ADMIXTURE FOR SALT DAMAGE COUNTERMEASURE AND CONCRETE USING THE SAME
PROBLEM TO BE SOLVED: To provide an excellent cement admixture for salt damage countermeasure by combining specific compounds, and a concrete using the same.SOLUTION: According to a first embodiment, a cement admixture for salt damage countermeasure is provided that contains free lime and a calcium ferroaluminate compound. According to a second embodiment, a cement admixture for salt damage countermeasure is provided that is identical to the cement admixture for salt damage countermeasure in the first embodiment except that the cement admixture contains free lime of 10 to 60 pts.mass and calcium ferroaluminate compound of 40 to 90 pts.mass in 100 pts.mass of total of the free lime and the calcium ferroaluminate compound. According to a third embodiment. a cement admixture for salt damage countermeasure is provided that is identical to the cement admixture in the first or the second embodiment except that the free lime and the calcium ferroaluminate have Blaine specific surface area of 2000 to 7000 cm/g. A production method of the cement admixture for salt damage countermeasure is provide in which a heat treated article containing the free lime of 80 mass% or more and the calcium ferroaluminate compound are concurrently pulverized. Concrete is provided that is produced by blending the cement, the cement admixture for salt damage countermeasure.SELECTED DRAWING: None
【課題】特定の化合物を組み合わせることにより、優れた塩害対策用のセメント混和材及びそれを用いたコンクリートを提供する。【解決手段】遊離石灰とカルシウムフェロアルミネート化合物を含有してなる塩害対策用セメント混和材、遊離石灰とカルシウムフェロアルミネート化合物の合計１００質量部中、遊離石灰１０〜６０質量部、カルシウムフェロアルミネート化合物４０〜９０質量部である前記塩害対策用セメント混和材、遊離石灰とカルシウムフェロアルミネート化合物が、ブレーン比表面積２０００〜７０００ｃｍ２/ｇである前記塩害対策用セメント混和材、遊離石灰を８０質量％以上含有する熱処理物とカルシウムフェロアルミネート化合物を同時粉砕する前記塩害対策用セメント混和材の製造方法、セメントと、前記塩害対策用セメント混和材と、高炉スラグ微粉末、フライアッシュ、又はシリカフュームとを配合してなるコンクリート、である。【選択図】なし
CEMENT ADMIXTURE FOR SALT DAMAGE COUNTERMEASURE AND CONCRETE USING THE SAME
塩害対策用セメント混和材及びそれを用いたコンクリート
HONMA KAZUYA (Autor:in) / HIGUCHI TAKAYUKI (Autor:in) / KIMURA JUNICHI (Autor:in) / MORI TAIICHIRO (Autor:in)
08.02.2018
Patent
Elektronische Ressource
Japanisch
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