A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
CONCRETE COMPOSITION AND CONCRETE CURED BODY
PROBLEM TO BE SOLVED: To provide a concrete composition having high fluidity which has such high material separation resistance as to suppress separation of a material such as an aggregate and separation of black fine powder, and to provide a concrete cured body obtained by curing the concrete composition.SOLUTION: A concrete composition is made of a binding material, water, a fine aggregate, a coarse aggregate and an admixture, has a water/binding material ratio of 30-70 mass% and a slump flow value of 35-80 cm, contains 20 or more mass% of Portland cement in the binding material and contains 0.05-0.5 pt.mass of the admixture obtained by combining specific three components or four components with respect to 100 pts.mass of the binding material.SELECTED DRAWING: None
【課題】流動性の高いコンクリート組成物において、骨材等の材料の分離や黒色微粉の分離を抑制する材料分離抵抗性の高い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させ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、水／結合材比が３０〜７０質量％、またスランプフロー値が３５〜８０ｃｍであり、結合材中にポルトランドセメントを２０質量％以上の割合で含有し、且つ結合材１００質量部に対して特定の３成分又は４成分を組み合わせた混和剤を０．０５〜０．５質量部の割合で含有するコンクリート組成物とした。【選択図】なし
CONCRETE COMPOSITION AND CONCRETE CURED BODY
PROBLEM TO BE SOLVED: To provide a concrete composition having high fluidity which has such high material separation resistance as to suppress separation of a material such as an aggregate and separation of black fine powder, and to provide a concrete cured body obtained by curing the concrete composition.SOLUTION: A concrete composition is made of a binding material, water, a fine aggregate, a coarse aggregate and an admixture, has a water/binding material ratio of 30-70 mass% and a slump flow value of 35-80 cm, contains 20 or more mass% of Portland cement in the binding material and contains 0.05-0.5 pt.mass of the admixture obtained by combining specific three components or four components with respect to 100 pts.mass of the binding material.SELECTED DRAWING: None
【課題】流動性の高いコンクリート組成物において、骨材等の材料の分離や黒色微粉の分離を抑制する材料分離抵抗性の高い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させ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、水／結合材比が３０〜７０質量％、またスランプフロー値が３５〜８０ｃｍであり、結合材中にポルトランドセメントを２０質量％以上の割合で含有し、且つ結合材１００質量部に対して特定の３成分又は４成分を組み合わせた混和剤を０．０５〜０．５質量部の割合で含有するコンクリート組成物とした。【選択図】なし
CONCRETE COMPOSITION AND CONCRETE CURED BODY
コンクリート組成物及びコンクリート硬化体
MORITA ATSUSHI (author) / TAMAKI SHINJI (author) / YAMAZAKI MIKI (author)
2017-12-28
Patent
Electronic Resource
Japanese
CONCRETE COMPOSITION FOR PAVEMENT, AND CURED BODY OF CONCRETE FOR PAVEMENT
| European Patent Office | 2018
| European Patent Office | 2019