| 摘要 |
<p>PURPOSE: A water-retaining concrete composition is provided to improve repair capability of the inner part of concrete using a composite having an ionic bond of functional powder and slag which is coated with a water-swelling polymer and to enhance the strength and durability of the concrete. CONSTITUTION: A water-retaining concrete composition includes 38-50 weight% of thick aggregates, 25-35% of fine aggregates, 12-32 weight% of a cement binding material, 1-10 weight% of a composite having an ionic bond of functional powder and slag which is coated with a water-swelling polymer, 0.01-0.5 weight% of antifoaming agent, 0.005-1 weight% of superplasticizer, and 0.1-5 weight% of an inorganic pigment.</p> |
