| 摘要 |
PROBLEM TO BE SOLVED: To provide a producing method of high-fluidity concrete giving a hardened material having excellent beauty appearance with hardly containing air bubble and a hardened material having excellent mechanical strength with suppressing separation of the material. SOLUTION: This high-fluidity concrete has 50-70cm slump flow value and is obtained by blending cement, water, aggregate, water reducing agent and hydroxyalkylcellulose granules having 2.3-2.8 average substituted molar number per a molecule of hydroxyalkyl group and 250-350μm average granule diameter, preferably hydroxylmethylcellulose granules. |
