CEMENT COMPOSITION FOR CARBONATED/HARDENED BODY, CEMENT CONCRETE COMPOSITION FOR CARBONATED/HARDENED BODY AND METHOD FOR MANUFACTURING CARBONATED/HARDENED BODY

摘要

PPROBLEM TO BE SOLVED: To provide a carbonated/hardened body which is based on cement concrete and has high bending strength. PSOLUTION: This cement composition for the carbonated/hardened body contains a vinyl polymer having as a repeating unit one, two or more compounds selected from the group consisting of an unsaturated carboxylic acid such as acrylic acid, methacrylic acid, maleic acid and fumaric acid, salts, acid halides and acid anhydrides of these unsaturated carboxylic acids, 40% dicalcium silicate and cement. The carbonated/hardened body is hardly cracked when hydrated/hardened and has excellent balance between initial bending strength and compressive strength. Since the edge or corner part of the carbonated/hardened body is hardly broken by a shock during the transportation and construction, the carbonated/hardened body is suitable as a curtain wall, a panel material, a concrete-made embedding frame or the like mainly in civil engineering and building fields. PCOPYRIGHT: (C)2004,JPO