| abstract |
PROBLEM TO BE SOLVED: To provide a concrete for forming a carbon dioxide-fixed molded body capable of forming a molded body having properties capable of effectively fixing carbon dioxide in the atmosphere without impairing the original mechanical properties such as compressive strength and bending strength of the concrete. Provided are a composition, a molded article comprising the concrete composition, and a method for producing the same. A concrete composition containing water, cement, an admixture, an aggregate, an organic fiber made of alkali-degradable resin fine particles or an alkali-degradable resin, and fine powder or adsorbent capable of adsorbing carbon dioxide. Then, by curing the concrete composition, a molded body is obtained in which a void having a diameter of 10 μm to 200 μm or a hollow hole having a cross section of the same diameter is provided in the surface layer portion by 0.05 vol% to 10 vol%. A concrete composition for forming a carbon dioxide-fixed molded body characterized by the above. [Selection figure] None |