Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
CONCRETE COMPOSITION FOR PAVEMENT, AND CURED BODY OF CONCRETE FOR PAVEMENT
PROBLEM TO BE SOLVED: To provide a concrete composition for pavement or the like, which is excellent in workability, development of initial strength, suppression of initial crack, and durability, and high in material separation resistance during construction.SOLUTION: The present invention provides a concrete composition for pavement, which at least includes binder comprising the following constituent of (A) to (D), coarse aggregate, fine aggregate, water, and water-reducing agent, with water-binder ratio of 10 to 37%. The constituent includes: (A) a pozzolanic fine powder that has a BET specific surface area of 15 to 25 m/g of 0.5 to 27.5 mass %; (B) fly ash that has a Blaine ratio surface area of 2500 to 10000 cm/g of 1.0 to 45.0 mass %; (C) anhydrous gypsum that has a Blaine ratio surface area of 3000 to 12000 cm/g of 0.5 to 20.0 mass %; and (D) portland cement or conventional ecological cement of 50.0 to 90.0 mass % (where, the sum of percentage content of (A) to (D) is 100 mass %).SELECTED DRAWING: None
【課題】本発明は、施工性、初期強度の発現性、初期ひび割れの抑制、および耐久性に優れ、施工時の材料分離抵抗性が高い舗装用コンクリート組成物等を提供する。【解決手段】本発明は、下記（Ａ）〜（Ｄ)の構成成分を含む結合材、粗骨材、細骨材、水、および減水剤を、少なくとも含有し、水結合材比が１０〜３７％である、舗装用コンクリート組成物である。（Ａ）ＢＥＴ比表面積が１５〜２５ｍ２／ｇのポゾラン質微粉末：０．５〜２７．５質量％（Ｂ）ブレーン比表面積が２５００〜１００００ｃｍ２／ｇのフライアッシュ：１．０〜４５．０質量％（Ｃ）ブレーン比表面積が３０００〜１２０００ｃｍ２／ｇの無水石膏：０．５〜２０．０質量％（Ｄ）ポルトランドセメントまたは普通エコセメント：５０．０〜９０．０質量％（ただし、（Ａ）〜（Ｄ）の含有率の合計は１００質量％である。）【選択図】なし
CONCRETE COMPOSITION FOR PAVEMENT, AND CURED BODY OF CONCRETE FOR PAVEMENT
PROBLEM TO BE SOLVED: To provide a concrete composition for pavement or the like, which is excellent in workability, development of initial strength, suppression of initial crack, and durability, and high in material separation resistance during construction.SOLUTION: The present invention provides a concrete composition for pavement, which at least includes binder comprising the following constituent of (A) to (D), coarse aggregate, fine aggregate, water, and water-reducing agent, with water-binder ratio of 10 to 37%. The constituent includes: (A) a pozzolanic fine powder that has a BET specific surface area of 15 to 25 m/g of 0.5 to 27.5 mass %; (B) fly ash that has a Blaine ratio surface area of 2500 to 10000 cm/g of 1.0 to 45.0 mass %; (C) anhydrous gypsum that has a Blaine ratio surface area of 3000 to 12000 cm/g of 0.5 to 20.0 mass %; and (D) portland cement or conventional ecological cement of 50.0 to 90.0 mass % (where, the sum of percentage content of (A) to (D) is 100 mass %).SELECTED DRAWING: None
【課題】本発明は、施工性、初期強度の発現性、初期ひび割れの抑制、および耐久性に優れ、施工時の材料分離抵抗性が高い舗装用コンクリート組成物等を提供する。【解決手段】本発明は、下記（Ａ）〜（Ｄ)の構成成分を含む結合材、粗骨材、細骨材、水、および減水剤を、少なくとも含有し、水結合材比が１０〜３７％である、舗装用コンクリート組成物である。（Ａ）ＢＥＴ比表面積が１５〜２５ｍ２／ｇのポゾラン質微粉末：０．５〜２７．５質量％（Ｂ）ブレーン比表面積が２５００〜１００００ｃｍ２／ｇのフライアッシュ：１．０〜４５．０質量％（Ｃ）ブレーン比表面積が３０００〜１２０００ｃｍ２／ｇの無水石膏：０．５〜２０．０質量％（Ｄ）ポルトランドセメントまたは普通エコセメント：５０．０〜９０．０質量％（ただし、（Ａ）〜（Ｄ）の含有率の合計は１００質量％である。）【選択図】なし
CONCRETE COMPOSITION FOR PAVEMENT, AND CURED BODY OF CONCRETE FOR PAVEMENT
舗装用コンクリート組成物、および舗装用コンクリート硬化体
ISHIDA MASAO (Autor:in) / IGUCHI MAI (Autor:in)
26.04.2018
Patent
Elektronische Ressource
Japanisch
Stress-cured concrete pavement
| Engineering Index Backfile | 1939
CONCRETE PAVEMENT AND CONCRETE PAVEMENT CONSTRUCTION METHOD
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