A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
CONCRETE COMPOSITION AND HARDENED CONCRETE BODY
PROBLEM TO BE SOLVED: To provide a concrete composition which can satisfy, on the premise that COunit requirement of obtained hardened concrete body can be reduced, requirements 1) to 7): 1) having good flowability, 2) having good flow retention property over time, 3) excellent in integration with an aggregate and a cement paste, 4) having small dry shrinkage, 5) having high freezing and thawing resistance, 6) having high fire resistance, 7) having good development of early age strength, and to provide a hardened concrete body obtained by curing such a concrete composition.SOLUTION: There is provided the concrete composition that is composed of a binding material, water, a fine aggregate, a coarse aggregate and an admixture and that uses as the binding material, one containing 70 mass% or more of a specific blast furnace cement in the biding material and uses as the admixture, one containing specific three components of 0.05 to 2.0 pts.mass based on 100 pts.mass of the binding material.SELECTED DRAWING: None
【課題】得られるコンクリート硬化体のＣＯ２原単位を削減できることを前提として、１）流動性が良く、２）経時的な流動保持性も良く、３）骨材とセメントペーストとの一体性に優れ、４）乾燥収縮が小さく、５）凍結融解抵抗性が高く、６）耐火性も高く、７）初期強度の発現性が良い、以上の１）〜７）の要求を同時に満足することのできるコンクリート組成物及びかかるコンクリート組成物を硬化したコンクリート硬化体を提供する。【解決手段】結合材、水、細骨材、粗骨材及び混和剤からなるコンクリート組成物であって、結合材として特定の高炉セメントを結合材中に７０質量％以上含有するものを用い、また混和剤として特定の３成分を含有して成るものを結合材１００質量部に対して０．０５〜２．０質量部の割合となるよう用いた。【選択図】なし
CONCRETE COMPOSITION AND HARDENED CONCRETE BODY
PROBLEM TO BE SOLVED: To provide a concrete composition which can satisfy, on the premise that COunit requirement of obtained hardened concrete body can be reduced, requirements 1) to 7): 1) having good flowability, 2) having good flow retention property over time, 3) excellent in integration with an aggregate and a cement paste, 4) having small dry shrinkage, 5) having high freezing and thawing resistance, 6) having high fire resistance, 7) having good development of early age strength, and to provide a hardened concrete body obtained by curing such a concrete composition.SOLUTION: There is provided the concrete composition that is composed of a binding material, water, a fine aggregate, a coarse aggregate and an admixture and that uses as the binding material, one containing 70 mass% or more of a specific blast furnace cement in the biding material and uses as the admixture, one containing specific three components of 0.05 to 2.0 pts.mass based on 100 pts.mass of the binding material.SELECTED DRAWING: None
【課題】得られるコンクリート硬化体のＣＯ２原単位を削減できることを前提として、１）流動性が良く、２）経時的な流動保持性も良く、３）骨材とセメントペーストとの一体性に優れ、４）乾燥収縮が小さく、５）凍結融解抵抗性が高く、６）耐火性も高く、７）初期強度の発現性が良い、以上の１）〜７）の要求を同時に満足することのできるコンクリート組成物及びかかるコンクリート組成物を硬化したコンクリート硬化体を提供する。【解決手段】結合材、水、細骨材、粗骨材及び混和剤からなるコンクリート組成物であって、結合材として特定の高炉セメントを結合材中に７０質量％以上含有するものを用い、また混和剤として特定の３成分を含有して成るものを結合材１００質量部に対して０．０５〜２．０質量部の割合となるよう用いた。【選択図】なし
CONCRETE COMPOSITION AND HARDENED CONCRETE BODY
コンクリート組成物及びコンクリート硬化体
INOUE KAZUMASA (author) / KOJIMA MASAO (author) / TSUJI DAIJIRO (author) / MATSUSHITA TETSURO (author) / IWASHIMIZU TAKASHI (author) / SATO TOSHIYUKI (author) / INOUE TAKAYUKI (author) / ZEN SHINKAN (author) / YODA KAZUHISA (author) / KANDA TETSUSHI (author)
2017-03-23
Patent
Electronic Resource
Japanese
CONCRETE COMPOSITION, CONCRETE HARDENED BODY AND METHOD FOR PRODUCING HARDENED CONCRETE BODY
| European Patent Office | 2024
| European Patent Office | 2024
CEMENT COMPOSITION, CONCRETE, CONCRETE-HARDENED BODY, AND CONCRETE STRUCTURE
| European Patent Office | 2020