A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
CONCRETE STRUCTURE REPAIR MATERIAL, AND MORTAR USING THE SAME
To provide mortar for repairing a concrete structure, having excellent pumpability, high fluidity and a high self-filling capability, and a concrete structure repair material that can advantageously be used as a raw material of the mortar.SOLUTION: The concrete structure repair material comprising portland cement, fine aggregate, fly ash, an antifoam agent, and a water reducing agent, is characterized in that the content of fly ash relative to 100 mass parts of the portland cement is in a range of not less than 2 mass parts and not more than 50 mass parts, the amount of the residue of the fly ash on a 45 μm sieve is in a range of not less than 1 mass% and not more than 10 mass%, the classification accuracy index k(D25/D75) is in a range of not lower than 0.6 and not higher than 0.7, and Blaine specific surface area is 3500 cm/g or greater.SELECTED DRAWING: Figure 1
【課題】ポンプ圧送性に優れ、かつ流動性と自己充填性とが高いコンクリート構造物補修用のモルタルおよびそのモルタルの原料として有利に用いることができるコンクリート構造物補修材を提供する。【解決手段】ポルトランドセメント、細骨材、フライアッシュ、消泡剤、減水剤を含むコンクリート構造物補修材であって、前記ポルトランドセメント１００質量部に対する前記フライアッシュの含有量が２質量部以上５０質量部以下の範囲内にあり、前記フライアッシュは、４５μｍふるい残分が１質量％以上１０質量％以下の範囲内にあって、分級精度指数к（Ｄ２５／Ｄ７５）が０．６以上０．７以下の範囲内にあり、ブレーン比表面積が３５００ｃｍ２／ｇ以上であることを特徴とするコンクリート構造物補修材。【選択図】図１
CONCRETE STRUCTURE REPAIR MATERIAL, AND MORTAR USING THE SAME
To provide mortar for repairing a concrete structure, having excellent pumpability, high fluidity and a high self-filling capability, and a concrete structure repair material that can advantageously be used as a raw material of the mortar.SOLUTION: The concrete structure repair material comprising portland cement, fine aggregate, fly ash, an antifoam agent, and a water reducing agent, is characterized in that the content of fly ash relative to 100 mass parts of the portland cement is in a range of not less than 2 mass parts and not more than 50 mass parts, the amount of the residue of the fly ash on a 45 μm sieve is in a range of not less than 1 mass% and not more than 10 mass%, the classification accuracy index k(D25/D75) is in a range of not lower than 0.6 and not higher than 0.7, and Blaine specific surface area is 3500 cm/g or greater.SELECTED DRAWING: Figure 1
【課題】ポンプ圧送性に優れ、かつ流動性と自己充填性とが高いコンクリート構造物補修用のモルタルおよびそのモルタルの原料として有利に用いることができるコンクリート構造物補修材を提供する。【解決手段】ポルトランドセメント、細骨材、フライアッシュ、消泡剤、減水剤を含むコンクリート構造物補修材であって、前記ポルトランドセメント１００質量部に対する前記フライアッシュの含有量が２質量部以上５０質量部以下の範囲内にあり、前記フライアッシュは、４５μｍふるい残分が１質量％以上１０質量％以下の範囲内にあって、分級精度指数к（Ｄ２５／Ｄ７５）が０．６以上０．７以下の範囲内にあり、ブレーン比表面積が３５００ｃｍ２／ｇ以上であることを特徴とするコンクリート構造物補修材。【選択図】図１
CONCRETE STRUCTURE REPAIR MATERIAL, AND MORTAR USING THE SAME
コンクリート構造物補修材およびそれを用いたモルタル
INOHANA HITOSHI (author) / KIMOTO DAISUKE (author) / TAKAHARA KONOSUKE (author)
2019-10-17
Patent
Electronic Resource
Japanese
IPC:
C04B
Kalk
,
LIME
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