ENVIRONMENT-CONSCIOUS CONCRETE COMPOSITION

摘要

PROBLEM TO BE SOLVED: To provide a concrete composition which is environment-conscious concrete having extremely small carbon emissions, improved in initial strength development, suppressed Abusanden phenomenon, and improved in neutralization resistance.SOLUTION: The present invention includes an environmental-conscious concrete composition in which: (1) a content of a stimulant is 10 parts or less with respect to 100 parts of a binder composed of a blast furnace slag fine powder and the stimulant, and a blast furnace slow-cooled slag aggregate is blended in part or all of a fine aggregate and/or a coarse aggregate; (2) a stimulant is composed of one or more than two selected from Portland cement, quick lime, calcium hydroxide, and expansive additive; (3) carbon emission per unit is 20 kg C/mor less; (4) a mixture material is composed of one or more than two selected from limestone fine powder, fly ash, and silica fume; and (5) a unit amount of slow-cooled slag fine aggregate is 100 kg/mor more.SELECTED DRAWING: None