| 摘要 |
Provided is a concrete composition which comprises a nonionic water-soluble cellulose ether, water, cement, a fine aggregate, and a coarse aggregate. The nonionic water-soluble cellulose ether has a 2 wt% aqueous solution viscosity of 3-1,000 mPa·s at 20°C. Moreover, the concrete composition has a static slump/remix slump ratio (A/B) of at least 0.50. According to the present invention, it is possible to produce concrete which has excellent resistiveness for separation of materials, shows low reduction in liquidity after being fixed for a certain amount of time, and undergoes little variation in pumpability in accordance with time, when constructing. |
