HIGH DURABILITY CONCRETE
PROBLEM TO BE SOLVED: To provide a high durability concrete capable of achieving chloride penetration resistance, dry shrinkage inhibition, resistance to neutralization and freezing damage and compressive strength. at sufficiently high level.SOLUTION: There is provided high durability concrete conta...
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Zusammenfassung: | PROBLEM TO BE SOLVED: To provide a high durability concrete capable of achieving chloride penetration resistance, dry shrinkage inhibition, resistance to neutralization and freezing damage and compressive strength. at sufficiently high level.SOLUTION: There is provided high durability concrete containing a binding material containing normal Portland cement and blast furnace slag fine particle with 30 to 70 pts.mass of the blast furnace slag fine particle based on 100 pts.mass of the binding material, fly ash, a fine aggregate containing a hard blast furnace slag fine aggregate of 40 to 100 vol.% based on volume of the fine aggregate, a coarse aggregate, a chemical admixture and water with the content of fly ash of 10 to 50 pts.mass based on 100 pts.mass of the binding material and a ratio of the mass A of the binding material and the mass B of water (B/A) of 0.2 to 0.6.SELECTED DRAWING: None
【課題】塩化物浸透抵抗性、乾燥収縮抑制、中性化及び凍害に対する抵抗性、圧縮強度の全てを十分高水準に達成し得る高耐久性コンクリートを提供する。【解決手段】普通ポルトランドセメントと高炉スラグ微粉末とからなる結合材であって当該結合材100質量部に対して高炉スラグ微粉末を30〜70質量部含む結合材と、フライアッシュと、硬質高炉スラグ細骨材を含む細骨材であって当該細骨材の体積基準で硬質高炉スラグ細骨材を40〜100体積%含む細骨材と、粗骨材と、化学混和剤と、水とを含有し、フライアッシュの含有量は結合材100質量部に対して10〜50質量部であり、結合材の質量Aに対する水の質量Bの比(B/A)が0.2〜0.6である高耐久性コンクリート。【選択図】なし |
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