| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a surface finishing method of a concrete structure which suppresses cracking and achieves good appearance, and a concrete structure.SOLUTION: A surface finishing method of a concrete structure includes the steps of: placing ultra-low shrinkage concrete prepared by using as main components, cement, a coarse aggregate and a fine aggregate using limestone as their raw material, and water, and mixing an admixture having a viscosity of 10-200 mPa s (at 20°C) so that the binder to water ratio is 1.54-3.33 and the dry shrinkage rate at a material age of 6 months is 1.5×10or less; and coating an anionic surfactant on the surface of the placed ultra-low shrinkage concrete.</p> |
