A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
CONTINUOUS FOOTING AND MANUFACTURING METHOD THEREFOR
PROBLEM TO BE SOLVED: To provide a continuous footing having high compressive strength and excellent in abrasion resistance, freeze-thaw resistance, and salt shielding property.SOLUTION: There is provided a continuous footing 1 consisting of a cured body of a cement composition containing cement, silica fume with BET specific surface area of 15 to 25 m/g, an inorganic powder with 50% volume accumulation particle diameter of 0.8 to 5 μm, an aggregate with maximum particle diameter of 1.2 mm or less, a high performance water-reducing agent, an antifoamer, and water and having percentage of the cement of 55 to 65 vol.%, percentage of the silica fume of 5 to 25 vol.%, and percentage of the inorganic powder of 15 to 35 vol.% in total amount of 100 vol.% of the cement, the silica fume, and the inorganic powder.SELECTED DRAWING: Figure 1
【課題】高い圧縮強度を有し、かつ、耐摩耗性、凍結融解抵抗性、及び遮塩性に優れた布基礎を提供する。【解決手段】セメント、ＢＥＴ比表面積が１５〜２５ｍ２／ｇのシリカフューム、５０％体積累積粒径が０．８〜５μｍの無機粉末、最大粒径が１．２ｍｍ以下の骨材、高性能減水剤、消泡剤及び水を含み、かつセメント、シリカフューム及び無機粉末の合計量１００体積％中、セメントの割合が５５〜６５体積％、シリカフュームの割合が５〜２５体積％、無機粉末の割合が１５〜３５体積％であるセメント組成物の硬化体からなる布基礎１。【選択図】図１
CONTINUOUS FOOTING AND MANUFACTURING METHOD THEREFOR
PROBLEM TO BE SOLVED: To provide a continuous footing having high compressive strength and excellent in abrasion resistance, freeze-thaw resistance, and salt shielding property.SOLUTION: There is provided a continuous footing 1 consisting of a cured body of a cement composition containing cement, silica fume with BET specific surface area of 15 to 25 m/g, an inorganic powder with 50% volume accumulation particle diameter of 0.8 to 5 μm, an aggregate with maximum particle diameter of 1.2 mm or less, a high performance water-reducing agent, an antifoamer, and water and having percentage of the cement of 55 to 65 vol.%, percentage of the silica fume of 5 to 25 vol.%, and percentage of the inorganic powder of 15 to 35 vol.% in total amount of 100 vol.% of the cement, the silica fume, and the inorganic powder.SELECTED DRAWING: Figure 1
【課題】高い圧縮強度を有し、かつ、耐摩耗性、凍結融解抵抗性、及び遮塩性に優れた布基礎を提供する。【解決手段】セメント、ＢＥＴ比表面積が１５〜２５ｍ２／ｇのシリカフューム、５０％体積累積粒径が０．８〜５μｍの無機粉末、最大粒径が１．２ｍｍ以下の骨材、高性能減水剤、消泡剤及び水を含み、かつセメント、シリカフューム及び無機粉末の合計量１００体積％中、セメントの割合が５５〜６５体積％、シリカフュームの割合が５〜２５体積％、無機粉末の割合が１５〜３５体積％であるセメント組成物の硬化体からなる布基礎１。【選択図】図１
CONTINUOUS FOOTING AND MANUFACTURING METHOD THEREFOR
布基礎及びその製造方法
TADA KATSUHIKO (author)
2017-06-01
Patent
Electronic Resource
Japanese
| European Patent Office | 2019